chore: release v3.5.5

Made-with: Cursor
feat: Helius Sender SWQOS support and global check_min_tip option
2026-02-27 15:07:18 +08:00 · 2026-02-27 15:00:13 +08:00 · 2026-02-27 13:44:22 +08:00 · 2026-02-27 02:30:52 +08:00 · 2026-02-27 00:42:43 +08:00 · 2026-02-27 00:42:17 +08:00
48 changed files with 914 additions and 531 deletions
@@ -1,6 +1,6 @@
 [package]
 name = "sol-trade-sdk"
-version = "3.5.0"
+version = "3.5.5"
 edition = "2021"
 authors = [
    "William <byteblock6@gmail.com>",
@@ -19,9 +19,9 @@ members = [
    "examples/trading_client",
    "examples/shared_infrastructure",
    "examples/middleware_system",
+    "examples/pumpswap_trading",
    "examples/pumpfun_copy_trading",
    "examples/pumpfun_sniper_trading",
-    "examples/pumpswap_trading",
    "examples/bonk_sniper_trading",
    "examples/bonk_copy_trading",
    "examples/raydium_cpmm_trading",
@@ -45,23 +45,23 @@ perf-trace = []  # 性能追踪特性，生产环境应禁用以获得最佳性

 [dependencies]
 solana-sdk = "3.0.0"
-solana-client = "3.0.8"
+solana-client = "3.1.9"
 solana-program = "3.0.0"
-solana-rpc-client = "3.0.8"
-solana-rpc-client-api = "3.0.8"
-solana-transaction-status = "3.0.8"
-solana-account-decoder = "3.0.8"
+solana-rpc-client = "3.1.9"
+solana-rpc-client-api = "3.1.9"
+solana-transaction-status = "3.1.9"
+solana-account-decoder = "3.1.9"
 solana-hash = "3.0.0"
-solana-entry = "3.0.8"
-solana-rpc-client-nonce-utils = "3.0.8"
-solana-perf = "3.0.8"
-solana-metrics = "3.0.8"
-solana-nonce = "3.0.0"
-solana-address-lookup-table-interface = "3.0.0"
+solana-entry = "3.1.9"
+solana-rpc-client-nonce-utils = "3.1.9"
+solana-perf = "3.1.9"
+solana-metrics = "3.1.9"
+solana-nonce = "3.1.0"
+solana-address-lookup-table-interface = "3.0.1"
 solana-compute-budget-interface = "3.0.0"
-solana-commitment-config = { version = "3.0.0", features = ["serde"] }
-solana-transaction-status-client-types = "3.0.0"
-solana-tls-utils = "3.0.8"
+solana-commitment-config = { version = "3.1.1", features = ["serde"] }
+solana-transaction-status-client-types = "3.1.9"
+solana-tls-utils = "3.1.9"

 borsh = { version = "1.5.3", features = ["derive"] }
 isahc = "1.7.2"
@@ -60,14 +60,6 @@

 ---

-## 🆕 What's new in 3.5.0
-
- **Performance**: Hot-path timing only when logging; reduced clones (`execute_parallel` takes `&[Arc<SwqosClient>]`); shared HTTP client constants for SWQoS.
- **Code quality**: Extracted `validate_protocol_params` for buy/sell; constants for instruction/account sizes and HTTP timeouts; prefetch and branch-hint comments.
- **Documentation**: Bilingual (English + 中文) doc comments across execution, executor, perf, and swqos modules.
-
---
-
 ## ✨ Features

 1. **PumpFun Trading**: Support for `buy` and `sell` operations
@@ -97,14 +89,14 @@ Add the dependency to your `Cargo.toml`:

 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.5" }
 ```

 ### Use crates.io

 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = "3.5.0"
+sol-trade-sdk = "3.5.5"
 ```

 ## 🛠️ Usage Examples
@@ -60,14 +60,6 @@

 ---

-## 🆕 3.5.0 更新说明
-
- **性能**：仅在打日志时做热路径计时；减少 clone（`execute_parallel` 改为接收 `&[Arc<SwqosClient>]`）；SWQoS 共用 HTTP 客户端常量。
- **代码质量**：抽取 buy/sell 共用的 `validate_protocol_params`；指令/账户大小与 HTTP 超时常量化；预取与分支提示注释完善。
- **文档**：execution、executor、perf、swqos 等模块增加中英双语文档注释。
-
---
-
 ## ✨ 项目特性

 1. **PumpFun 交易**: 支持`购买`、`卖出`功能
@@ -97,14 +89,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk

 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.5" }
 ```

 ### 使用 crates.io

 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "3.5.0"
+sol-trade-sdk = "3.5.5"
 ```

 ## 🛠️ 使用示例
@@ -5,9 +5,7 @@ edition = "2021"

 [dependencies]
 sol-trade-sdk = { path = "../.." }
-solana-streamer-sdk = "0.5.0"
+sol-parser-sdk = "0.2.2"
 solana-sdk = "3.0.0"
-solana-address-lookup-table-interface = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 tokio = { version = "1", features = ["full"] }
-anyhow = "1.0.94"
@@ -1,5 +1,18 @@
+use std::{
+    str::FromStr,
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
+    },
+};
+
+use sol_parser_sdk::grpc::{
+    AccountFilter, ClientConfig, EventType, EventTypeFilter, OrderMode, Protocol,
+    TransactionFilter, YellowstoneGrpc,
+};
+use sol_parser_sdk::DexEvent;
 use sol_trade_sdk::common::address_lookup::fetch_address_lookup_table_account;
-use sol_trade_sdk::common::{gas_fee_strategy, GasFeeStrategy, TradeConfig};
+use sol_trade_sdk::common::{GasFeeStrategy, TradeConfig};
 use sol_trade_sdk::{
    common::AnyResult,
    swqos::SwqosConfig,
@@ -9,95 +22,82 @@ use sol_trade_sdk::{
 use solana_commitment_config::CommitmentConfig;
 use solana_sdk::pubkey::Pubkey;
 use solana_sdk::signature::Keypair;
-use solana_streamer_sdk::match_event;
-use solana_streamer_sdk::streaming::event_parser::common::filter::EventTypeFilter;
-use solana_streamer_sdk::streaming::event_parser::common::EventType;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::parser::PUMPFUN_PROGRAM_ID;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::PumpFunTradeEvent;
-use solana_streamer_sdk::streaming::event_parser::{Protocol, UnifiedEvent};
-use solana_streamer_sdk::streaming::yellowstone_grpc::{AccountFilter, TransactionFilter};
-use solana_streamer_sdk::streaming::YellowstoneGrpc;
-use std::{
-    str::FromStr,
-    sync::{
-        atomic::{AtomicBool, Ordering},
-        Arc,
-    },
-};

-// Global static flag to ensure transaction is executed only once
 static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);

 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Subscribing to GRPC events...");
+    println!("Subscribing to GRPC events (sol-parser-sdk, is_cashback_coin from event)...");

-    let grpc = YellowstoneGrpc::new(
-        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
-        None,
-    )?;
-
-    let callback = create_event_callback();
-    let protocols = vec![Protocol::PumpFun];
-    // Filter accounts
-    let account_include = vec![
-        PUMPFUN_PROGRAM_ID.to_string(), // Listen to pumpfun program ID
-    ];
-    let account_exclude = vec![];
-    let account_required = vec![];
-
-    // Listen to transaction data
-    let transaction_filter = TransactionFilter {
-        account_include: account_include.clone(),
-        account_exclude,
-        account_required,
+    let config = ClientConfig {
+        enable_metrics: false,
+        connection_timeout_ms: 10000,
+        request_timeout_ms: 30000,
+        enable_tls: true,
+        order_mode: OrderMode::Unordered,
+        ..Default::default()
    };

-    // Listen to account data belonging to owner programs -> account event monitoring
-    let account_filter = AccountFilter { account: vec![], owner: vec![], filters: vec![] };
+    let grpc_endpoint = std::env::var("GRPC_ENDPOINT")
+        .unwrap_or_else(|_| "https://solana-yellowstone-grpc.publicnode.com:443".to_string());
+    let grpc = YellowstoneGrpc::new_with_config(
+        grpc_endpoint,
+        std::env::var("GRPC_AUTH_TOKEN").ok(),
+        config,
+    )?;

-    // listen to specific event type
-    let event_type_filter =
-        EventTypeFilter { include: vec![EventType::PumpFunBuy, EventType::PumpFunSell] };
+    let protocols = vec![Protocol::PumpFun];
+    let transaction_filter = TransactionFilter::for_protocols(&protocols);
+    let account_filter = AccountFilter::for_protocols(&protocols);
+    let event_filter = EventTypeFilter::include_only(vec![
+        EventType::PumpFunBuy,
+        EventType::PumpFunSell,
+        EventType::PumpFunBuyExactSolIn,
+        EventType::PumpFunTrade,
+    ]);

-    grpc.subscribe_events_immediate(
-        protocols,
-        None,
-        vec![transaction_filter],
-        vec![account_filter],
-        Some(event_type_filter),
-        None,
-        callback,
-    )
-    .await?;
+    let queue = grpc
+        .subscribe_dex_events(vec![transaction_filter], vec![account_filter], Some(event_filter))
+        .await?;
+
+    loop {
+        if let Some(event) = queue.pop() {
+            let run = match &event {
+                DexEvent::PumpFunBuy(e) | DexEvent::PumpFunSell(e) | DexEvent::PumpFunBuyExactSolIn(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                DexEvent::PumpFunTrade(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                _ => None,
+            };
+            if let Some(e) = run {
+                tokio::spawn(async move {
+                    if let Err(err) = pumpfun_copy_trade_with_grpc(e).await {
+                        eprintln!("Error in copy trade: {:?}", err);
+                        std::process::exit(1);
+                    }
+                    std::process::exit(0);
+                });
+                break;
+            }
+        } else {
+            tokio::time::sleep(tokio::time::Duration::from_millis(5)).await;
+        }
+    }

    tokio::signal::ctrl_c().await?;
-
    Ok(())
 }

-/// Create an event callback function that handles different types of events
-fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
-    |event: Box<dyn UnifiedEvent>| {
-        match_event!(event, {
-            PumpFunTradeEvent => |e: PumpFunTradeEvent| {
-                // Test code, only test one transaction
-                if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
-                    let event_clone = e.clone();
-                    tokio::spawn(async move {
-                        if let Err(err) = pumpfun_copy_trade_with_grpc(event_clone).await {
-                            eprintln!("Error in copy trade: {:?}", err);
-                            std::process::exit(0);
-                        }
-                    });
-                }
-            },
-        });
-    }
-}
-
-/// Create SolanaTrade client
-/// Initializes a new SolanaTrade client with configuration
 async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
    println!("🚀 Initializing SolanaTrade client...");
    let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
@@ -110,9 +110,10 @@ async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
    Ok(solana_trade)
 }

-/// PumpFun sniper trade
-/// This function demonstrates how to snipe a new token from a PumpFun trade event
-async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResult<()> {
+/// PumpFun copy trade: use is_cashback_coin from gRPC event (sol-parser-sdk)
+async fn pumpfun_copy_trade_with_grpc(
+    trade_info: sol_parser_sdk::core::events::PumpFunTradeEvent,
+) -> AnyResult<()> {
    println!("Testing PumpFun trading...");

    let client = create_solana_trade_client().await?;
@@ -127,15 +128,13 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
    let gas_fee_strategy = GasFeeStrategy::new();
    gas_fee_strategy.set_global_fee_strategy(150000, 150000, 500000, 500000, 0.001, 0.001);

-    // Buy tokens
-    println!("Buying tokens from PumpFun...");
-    let buy_sol_amount = 100_000;
+    // is_cashback_coin from gRPC event (sol-parser-sdk parses it from trade event)
    let buy_params = sol_trade_sdk::TradeBuyParams {
        dex_type: DexType::PumpFun,
        input_token_type: sol_trade_sdk::TradeTokenType::SOL,
        mint: mint_pubkey,
-        input_token_amount: buy_sol_amount,
-        slippage_basis_points: slippage_basis_points,
+        input_token_amount: 100_000,
+        slippage_basis_points,
        recent_blockhash: Some(recent_blockhash),
        extension_params: DexParamEnum::PumpFun(PumpFunParams::from_trade(
            trade_info.bonding_curve,
@@ -150,21 +149,21 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
            None,
            trade_info.fee_recipient,
            trade_info.token_program,
-            false, // is_cashback_coin: set from event/parser when available
+            trade_info.is_cashback_coin,
        )),
-        address_lookup_table_account: address_lookup_table_account,
+        address_lookup_table_account,
        wait_transaction_confirmed: true,
        create_input_token_ata: false,
        close_input_token_ata: false,
        create_mint_ata: true,
        durable_nonce: None,
        fixed_output_token_amount: None,
-        gas_fee_strategy: gas_fee_strategy,
+        gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

-    // Exit program
    std::process::exit(0);
 }
@@ -176,6 +176,7 @@ async fn bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult<()>
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -226,6 +227,7 @@ async fn bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult<()>
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -144,6 +144,7 @@ async fn bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyResult<
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -187,6 +188,7 @@ async fn bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyResult<
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -635,6 +635,7 @@ async fn handle_buy_pumpfun(
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    match client.buy(buy_params).await {
        Ok((_, signature, _)) => {
@@ -690,6 +691,7 @@ async fn handle_buy_pumpswap(
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    match client.buy(buy_params).await {
        Ok((_, signature, _)) => {
@@ -744,6 +746,7 @@ async fn handle_buy_bonk(
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    match client.buy(buy_params).await {
        Ok((_, signature, _)) => {
@@ -802,6 +805,7 @@ async fn handle_buy_raydium_v4(
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    match client.buy(buy_params).await {
        Ok((_, signature, _)) => {
@@ -860,6 +864,7 @@ async fn handle_buy_raydium_cpmm(
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    match client.buy(buy_params).await {
        Ok((_, signature, _)) => {
@@ -1028,6 +1033,7 @@ async fn handle_sell_pumpfun(
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };

    match client.sell(sell_params).await {
@@ -1086,6 +1092,7 @@ async fn handle_sell_pumpswap(
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    match client.sell(sell_params).await {
        Ok((_, signature, _)) => {
@@ -1143,6 +1150,7 @@ async fn handle_sell_bonk(
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    match client.sell(sell_params).await {
        Ok((_, signature, _)) => {
@@ -1203,6 +1211,7 @@ async fn handle_sell_raydium_v4(
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    match client.sell(sell_params).await {
        Ok((_, signature, _)) => {
@@ -1263,6 +1272,7 @@ async fn handle_sell_raydium_cpmm(
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    match client.sell(sell_params).await {
        Ok((_, signature, _)) => {
@@ -44,6 +44,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -77,6 +78,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        fixed_output_token_amount: Some(1),
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -1,9 +1,9 @@
 use anyhow::Result;
 use sol_trade_sdk::{
    common::{AnyResult, TradeConfig},
-    swqos::{SwqosConfig, SwqosRegion},
+    swqos::SwqosConfig,
    trading::{
-        core::params::{PumpSwapParams, DexParamEnum}, factory::DexType, middleware::builtin::LoggingMiddleware,
+        core::params::{PumpSwapParams, DexParamEnum}, factory::DexType,
        InstructionMiddleware, MiddlewareManager,
    },
    SolanaTrade, TradeTokenType,
@@ -30,8 +30,8 @@ impl InstructionMiddleware for CustomMiddleware {
    fn process_protocol_instructions(
        &self,
        protocol_instructions: Vec<Instruction>,
-        protocol_name: String,
-        is_buy: bool,
+        _protocol_name: String,
+        _is_buy: bool,
    ) -> Result<Vec<Instruction>> {
        // do anything you want here
        // you can modify the instructions here
@@ -41,8 +41,8 @@ impl InstructionMiddleware for CustomMiddleware {
    fn process_full_instructions(
        &self,
        full_instructions: Vec<Instruction>,
-        protocol_name: String,
-        is_buy: bool,
+        _protocol_name: String,
+        _is_buy: bool,
    ) -> Result<Vec<Instruction>> {
        // do anything you want here
        // you can modify the instructions here
@@ -103,6 +103,7 @@ async fn test_middleware() -> AnyResult<()> {
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;
    println!("tip: This transaction will not succeed because we're using a test account. You can modify the code to initialize the payer with your own private key");
@@ -5,7 +5,7 @@ edition = "2021"

 [dependencies]
 sol-trade-sdk = { path = "../.." }
-solana-streamer-sdk = "0.5.0"
+sol-parser-sdk = "0.2.2"
 solana-sdk = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 spl-associated-token-account = "7.0.0"
@@ -6,6 +6,11 @@ use std::{
    },
 };

+use sol_parser_sdk::grpc::{
+    AccountFilter, ClientConfig, EventType, EventTypeFilter, OrderMode, Protocol,
+    TransactionFilter, YellowstoneGrpc,
+};
+use sol_parser_sdk::DexEvent;
 use sol_trade_sdk::common::{nonce_cache::fetch_nonce_info, TradeConfig};
 use sol_trade_sdk::TradeTokenType;
 use sol_trade_sdk::{
@@ -16,88 +21,82 @@ use sol_trade_sdk::{
 };
 use solana_commitment_config::CommitmentConfig;
 use solana_sdk::{pubkey::Pubkey, signature::Keypair};
-use solana_streamer_sdk::match_event;
-use solana_streamer_sdk::streaming::event_parser::common::filter::EventTypeFilter;
-use solana_streamer_sdk::streaming::event_parser::common::EventType;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::parser::PUMPFUN_PROGRAM_ID;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::PumpFunTradeEvent;
-use solana_streamer_sdk::streaming::event_parser::{Protocol, UnifiedEvent};
-use solana_streamer_sdk::streaming::yellowstone_grpc::{AccountFilter, TransactionFilter};
-use solana_streamer_sdk::streaming::YellowstoneGrpc;

-// Global static flag to ensure transaction is executed only once
 static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);

 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Subscribing to GRPC events...");
+    println!("Subscribing to GRPC events (sol-parser-sdk, is_cashback_coin from event)...");

-    let grpc = YellowstoneGrpc::new(
-        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
-        None,
-    )?;
-
-    let callback = create_event_callback();
-    let protocols = vec![Protocol::PumpFun];
-    // Filter accounts
-    let account_include = vec![
-        PUMPFUN_PROGRAM_ID.to_string(), // Listen to pumpfun program ID
-    ];
-    let account_exclude = vec![];
-    let account_required = vec![];
-
-    // Listen to transaction data
-    let transaction_filter = TransactionFilter {
-        account_include: account_include.clone(),
-        account_exclude,
-        account_required,
+    let config = ClientConfig {
+        enable_metrics: false,
+        connection_timeout_ms: 10000,
+        request_timeout_ms: 30000,
+        enable_tls: true,
+        order_mode: OrderMode::Unordered,
+        ..Default::default()
    };

-    // Listen to account data belonging to owner programs -> account event monitoring
-    let account_filter = AccountFilter { account: vec![], owner: vec![], filters: vec![] };
+    let grpc_endpoint = std::env::var("GRPC_ENDPOINT")
+        .unwrap_or_else(|_| "https://solana-yellowstone-grpc.publicnode.com:443".to_string());
+    let grpc = YellowstoneGrpc::new_with_config(
+        grpc_endpoint,
+        std::env::var("GRPC_AUTH_TOKEN").ok(),
+        config,
+    )?;

-    // listen to specific event type
-    let event_type_filter =
-        EventTypeFilter { include: vec![EventType::PumpFunBuy, EventType::PumpFunSell] };
+    let protocols = vec![Protocol::PumpFun];
+    let transaction_filter = TransactionFilter::for_protocols(&protocols);
+    let account_filter = AccountFilter::for_protocols(&protocols);
+    let event_filter = EventTypeFilter::include_only(vec![
+        EventType::PumpFunBuy,
+        EventType::PumpFunSell,
+        EventType::PumpFunBuyExactSolIn,
+        EventType::PumpFunTrade,
+    ]);

-    grpc.subscribe_events_immediate(
-        protocols,
-        None,
-        vec![transaction_filter],
-        vec![account_filter],
-        Some(event_type_filter),
-        None,
-        callback,
-    )
-    .await?;
+    let queue = grpc
+        .subscribe_dex_events(vec![transaction_filter], vec![account_filter], Some(event_filter))
+        .await?;
+
+    loop {
+        if let Some(event) = queue.pop() {
+            let run = match &event {
+                DexEvent::PumpFunBuy(e) | DexEvent::PumpFunSell(e) | DexEvent::PumpFunBuyExactSolIn(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                DexEvent::PumpFunTrade(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                _ => None,
+            };
+            if let Some(e) = run {
+                tokio::spawn(async move {
+                    if let Err(err) = pumpfun_copy_trade_with_grpc(e).await {
+                        eprintln!("Error in copy trade: {:?}", err);
+                        std::process::exit(1);
+                    }
+                    std::process::exit(0);
+                });
+                break;
+            }
+        } else {
+            tokio::time::sleep(tokio::time::Duration::from_millis(5)).await;
+        }
+    }

    tokio::signal::ctrl_c().await?;
-
    Ok(())
 }

-/// Create an event callback function that handles different types of events
-fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
-    |event: Box<dyn UnifiedEvent>| {
-        match_event!(event, {
-            PumpFunTradeEvent => |e: PumpFunTradeEvent| {
-                // Test code, only test one transaction
-                if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
-                    let event_clone = e.clone();
-                    tokio::spawn(async move {
-                        if let Err(err) = pumpfun_copy_trade_with_grpc(event_clone).await {
-                            eprintln!("Error in copy trade: {:?}", err);
-                            std::process::exit(0);
-                        }
-                    });
-                }
-            },
-        });
-    }
-}
-
-/// Create SolanaTrade client
-/// Initializes a new SolanaTrade client with configuration
 async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
    println!("🚀 Initializing SolanaTrade client...");
    let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
@@ -110,9 +109,10 @@ async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
    Ok(solana_trade)
 }

-/// PumpFun sniper trade
-/// This function demonstrates how to snipe a new token from a PumpFun trade event
-async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResult<()> {
+/// PumpFun copy trade: use is_cashback_coin from gRPC event (sol-parser-sdk)
+async fn pumpfun_copy_trade_with_grpc(
+    trade_info: sol_parser_sdk::core::events::PumpFunTradeEvent,
+) -> AnyResult<()> {
    println!("Testing PumpFun trading...");

    let client = create_solana_trade_client().await?;
@@ -120,22 +120,19 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
    let slippage_basis_points = Some(100);
    let recent_blockhash = client.infrastructure.rpc.get_latest_blockhash().await?;

-    // Setup nonce cache
    let nonce_account_str = Pubkey::from_str("use_your_nonce_account_here")?;
    let durable_nonce = fetch_nonce_info(&client.infrastructure.rpc, nonce_account_str).await;

    let gas_fee_strategy = sol_trade_sdk::common::GasFeeStrategy::new();
    gas_fee_strategy.set_global_fee_strategy(150000, 150000, 500000, 500000, 0.001, 0.001);

-    // Buy tokens
-    println!("Buying tokens from PumpFun...");
-    let buy_sol_amount = 100_000;
+    // is_cashback_coin from gRPC event (sol-parser-sdk parses it from trade event)
    let buy_params = sol_trade_sdk::TradeBuyParams {
        dex_type: DexType::PumpFun,
        input_token_type: TradeTokenType::SOL,
        mint: mint_pubkey,
-        input_token_amount: buy_sol_amount,
-        slippage_basis_points: slippage_basis_points,
+        input_token_amount: 100_000,
+        slippage_basis_points,
        recent_blockhash: Some(recent_blockhash),
        extension_params: DexParamEnum::PumpFun(PumpFunParams::from_trade(
            trade_info.bonding_curve,
@@ -150,21 +147,21 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
            None,
            trade_info.fee_recipient,
            trade_info.token_program,
-            false, // is_cashback_coin: set from event/parser when available
+            trade_info.is_cashback_coin,
        )),
        address_lookup_table_account: None,
        wait_transaction_confirmed: true,
        create_input_token_ata: false,
        close_input_token_ata: false,
        create_mint_ata: true,
-        durable_nonce: durable_nonce,
+        durable_nonce,
        fixed_output_token_amount: None,
-        gas_fee_strategy: gas_fee_strategy,
+        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

-    // Exit program
    std::process::exit(0);
 }
@@ -5,7 +5,7 @@ edition = "2021"

 [dependencies]
 sol-trade-sdk = { path = "../.." }
-sol-parser-sdk = { path = "../../../sol-parser-sdk" }
+sol-parser-sdk = "0.2.2"
 solana-sdk = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 tokio = { version = "1", features = ["full"] }
@@ -27,7 +27,6 @@ static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);

 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let _ = rustls::crypto::ring::default_provider().install_default();
    println!("PumpFun 跟单示例（sol-parser-sdk gRPC）...");

    let config = ClientConfig {
@@ -155,6 +154,7 @@ async fn pumpfun_copy_trade(
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -202,6 +202,7 @@ async fn pumpfun_copy_trade(
        fixed_output_token_amount: None,
        gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -5,7 +5,7 @@ edition = "2021"

 [dependencies]
 sol-trade-sdk = { path = "../.." }
-sol-parser-sdk = { path = "../../../sol-parser-sdk" }
+sol-parser-sdk = "0.2.2"
 solana-sdk = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 tokio = { version = "1", features = ["full"] }
@@ -27,7 +27,6 @@ static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);

 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let _ = rustls::crypto::ring::default_provider().install_default();
    println!("PumpFun 狙击示例（sol-parser-sdk gRPC）...");

    let config = ClientConfig {
@@ -147,6 +146,7 @@ async fn pumpfun_sniper_trade(
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -188,6 +188,7 @@ async fn pumpfun_sniper_trade(
        fixed_output_token_amount: None,
        gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -44,6 +44,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -72,6 +73,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        create_output_token_ata: true,
        close_output_token_ata: true,
        close_mint_token_ata: false,
+        grpc_recv_us: None,
        durable_nonce: None,
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
@@ -1,6 +1,7 @@
 use sol_trade_sdk::common::fast_fn::get_associated_token_address_with_program_id_fast_use_seed;
 use sol_trade_sdk::common::TradeConfig;
 use sol_trade_sdk::TradeTokenType;
+use sol_trade_sdk::instruction::utils::pumpswap::fetch_pool;
 use sol_trade_sdk::{
    common::AnyResult,
    swqos::SwqosConfig,
@@ -136,7 +137,9 @@ async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
 }

 async fn pumpswap_trade_with_grpc_buy_event(trade_info: PumpSwapBuyEvent) -> AnyResult<()> {
-    let params = PumpSwapParams::new(
+    let client = create_solana_trade_client().await?;
+    let pool_data = fetch_pool(&client.infrastructure.rpc, &trade_info.pool).await?;
+    let params = PumpSwapParams::from_trade(
        trade_info.pool,
        trade_info.base_mint,
        trade_info.quote_mint,
@@ -149,6 +152,7 @@ async fn pumpswap_trade_with_grpc_buy_event(trade_info: PumpSwapBuyEvent) -> Any
        trade_info.base_token_program,
        trade_info.quote_token_program,
        trade_info.protocol_fee_recipient,
+        pool_data.is_cashback_coin,
    );
    let mint = if trade_info.base_mint == sol_trade_sdk::constants::USDC_TOKEN_ACCOUNT
        || trade_info.base_mint == sol_trade_sdk::constants::WSOL_TOKEN_ACCOUNT
@@ -157,12 +161,14 @@ async fn pumpswap_trade_with_grpc_buy_event(trade_info: PumpSwapBuyEvent) -> Any
    } else {
        trade_info.base_mint
    };
-    pumpswap_trade_with_grpc(mint, params).await?;
+    pumpswap_trade_with_grpc(&client, mint, params).await?;
    Ok(())
 }

 async fn pumpswap_trade_with_grpc_sell_event(trade_info: PumpSwapSellEvent) -> AnyResult<()> {
-    let params = PumpSwapParams::new(
+    let client = create_solana_trade_client().await?;
+    let pool_data = fetch_pool(&client.infrastructure.rpc, &trade_info.pool).await?;
+    let params = PumpSwapParams::from_trade(
        trade_info.pool,
        trade_info.base_mint,
        trade_info.quote_mint,
@@ -175,6 +181,7 @@ async fn pumpswap_trade_with_grpc_sell_event(trade_info: PumpSwapSellEvent) -> A
        trade_info.base_token_program,
        trade_info.quote_token_program,
        trade_info.protocol_fee_recipient,
+        pool_data.is_cashback_coin,
    );
    let mint = if trade_info.base_mint == sol_trade_sdk::constants::USDC_TOKEN_ACCOUNT
        || trade_info.base_mint == sol_trade_sdk::constants::WSOL_TOKEN_ACCOUNT
@@ -183,14 +190,16 @@ async fn pumpswap_trade_with_grpc_sell_event(trade_info: PumpSwapSellEvent) -> A
    } else {
        trade_info.base_mint
    };
-    pumpswap_trade_with_grpc(mint, params).await?;
+    pumpswap_trade_with_grpc(&client, mint, params).await?;
    Ok(())
 }

-async fn pumpswap_trade_with_grpc(mint_pubkey: Pubkey, params: PumpSwapParams) -> AnyResult<()> {
+async fn pumpswap_trade_with_grpc(
+    client: &SolanaTrade,
+    mint_pubkey: Pubkey,
+    params: PumpSwapParams,
+) -> AnyResult<()> {
    println!("Testing PumpSwap trading...");
-
-    let client = create_solana_trade_client().await?;
    let slippage_basis_points = Some(500);
    let recent_blockhash = client.infrastructure.rpc.get_latest_blockhash().await?;

@@ -221,6 +230,7 @@ async fn pumpswap_trade_with_grpc(mint_pubkey: Pubkey, params: PumpSwapParams) -
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -255,6 +265,7 @@ async fn pumpswap_trade_with_grpc(mint_pubkey: Pubkey, params: PumpSwapParams) -
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -174,6 +174,7 @@ async fn raydium_amm_v4_copy_trade_with_grpc(trade_info: RaydiumAmmV4SwapEvent)
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -212,6 +213,7 @@ async fn raydium_amm_v4_copy_trade_with_grpc(trade_info: RaydiumAmmV4SwapEvent)
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -159,6 +159,7 @@ async fn raydium_cpmm_copy_trade_with_grpc(trade_info: RaydiumCpmmSwapEvent) ->
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -194,6 +195,7 @@ async fn raydium_cpmm_copy_trade_with_grpc(trade_info: RaydiumCpmmSwapEvent) ->
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -47,6 +47,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        gas_fee_strategy: gas_fee_strategy.clone(),
        simulate: false,
        use_exact_sol_amount: None,
+        grpc_recv_us: None,
    };
    client.buy(buy_params).await?;

@@ -87,6 +88,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        fixed_output_token_amount: None,
        gas_fee_strategy: gas_fee_strategy,
        simulate: false,
+        grpc_recv_us: None,
    };
    client.sell(sell_params).await?;

@@ -31,6 +31,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
        SwqosConfig::Default(rpc_url.clone()),
        SwqosConfig::Jito("your_uuid".to_string(), SwqosRegion::Frankfurt, None),
        SwqosConfig::Bloxroute("your_api_token".to_string(), SwqosRegion::Frankfurt, None),
+        SwqosConfig::Helius("".to_string(), SwqosRegion::Default, None, Some(true)),
    ];

    // Step 1: Create shared infrastructure (expensive, do once)
@@ -49,6 +49,8 @@ async fn create_trading_client_simple() -> AnyResult<TradingClient> {
        SwqosConfig::Node1("your_api_token".to_string(), SwqosRegion::Frankfurt, None),
        SwqosConfig::BlockRazor("your_api_token".to_string(), SwqosRegion::Frankfurt, None),
        SwqosConfig::Astralane("your_api_token".to_string(), SwqosRegion::Frankfurt, None),
+        // Helius Sender: 4th param swqos_only Some(true) => min tip 0.000005 SOL; None => 0.0002 SOL
+        SwqosConfig::Helius("".to_string(), SwqosRegion::Default, None, Some(true)),
    ];

    // Optional: Customize WSOL ATA and Seed optimization settings
@@ -768,6 +768,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "bonding_curve_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [98, 111, 110, 100, 105, 110, 103, 45, 99, 117, 114, 118, 101, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -1164,6 +1179,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "bonding_curve_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [98, 111, 110, 100, 105, 110, 103, 45, 99, 117, 114, 118, 101, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -3957,6 +3987,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "bonding_curve_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [98, 111, 110, 100, 105, 110, 103, 45, 99, 117, 114, 118, 101, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -688,6 +688,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "pool_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [112, 111, 111, 108, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "base_mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -1119,6 +1134,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "pool_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [112, 111, 111, 108, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "base_mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -3162,6 +3192,21 @@
        {
          "name": "fee_program",
          "address": "pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ"
+        },
+        {
+          "name": "pool_v2",
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [112, 111, 111, 108, 45, 118, 50]
+              },
+              {
+                "kind": "account",
+                "path": "base_mint"
+              }
+            ]
+          }
        }
      ],
      "args": [
@@ -4835,7 +4880,7 @@
    },
    {
      "code": 6052,
-      "name": "CashbackEarnedDoesNotMatchTokenInVault"
+      "name": "TokensInVaultLessThanCashbackEarned"
    }
  ],
  "types": [
@@ -6,20 +6,19 @@ Rust SDK for Solana DEX trading (Pump.fun, PumpSwap, Raydium, Bonk, Meteora, etc

 ### Performance

- **Hot-path timing**: `Instant::now()` for build/submit/total/confirm only when `log_enabled` or (for total) simulate, reducing cold-path syscalls.
- **Fewer clones**: `execute_parallel` now takes `&[Arc<SwqosClient>]` instead of `Vec<Arc<SwqosClient>>`; caller no longer clones the client list.
- **SWQoS HTTP**: Named constants for pool idle timeout, connect/request timeouts, and HTTP/2 keepalive in `swqos/common.rs`.
+- **Executor hot path**: Sample `Instant::now()` only when `log_enabled` or `simulate` (total, build, submit, confirm) to reduce cold-path syscalls.
+- **SWQOS**: `execute_parallel` now takes `&[Arc<SwqosClient>]` to avoid cloning the client list on each swap.
+- **Constants**: Named constants for instruction/account sizes and HTTP client timeouts; no magic numbers in hot paths.

-### Code quality
+### Code Quality

- **Protocol params**: Single `validate_protocol_params(dex_type, params)` used by both buy and sell; removed duplicated match blocks.
- **Constants**: `BYTES_PER_ACCOUNT`, `MAX_INSTRUCTIONS_WARN` in execution; HTTP timeout constants in swqos common.
- **Comments**: Prefetch and branch-hint safety/usage documented; `SYSCALL_BYPASS` marked as reserved for future use.
+- **Protocol params**: Single `validate_protocol_params()` used for both buy and sell; removed duplicate match blocks in `lib.rs`.
+- **Comments**: Bilingual (English + 中文) doc and inline comments across execution, executor, perf (hardware_optimizations, syscall_bypass), and swqos/common.
+- **Prefetch/safety**: Clearer docs for cache prefetch and `unsafe` usage (valid read-only ref, no concurrent write).

 ### Documentation

- **Bilingual docs**: English + 中文 doc comments in `trading/core/execution.rs`, `trading/core/executor.rs`, `perf/hardware_optimizations.rs`, `perf/mod.rs`, `perf/syscall_bypass.rs`, `swqos/common.rs`.
- **README**: Version references and "What's new in 3.5.0" (EN) / "3.5.0 更新说明" (CN) updated.
+- README (EN/CN): Version references updated to 3.5.0 for path and crates.io usage.

 ---

@@ -30,7 +29,7 @@ Rust SDK for Solana DEX trading (Pump.fun, PumpSwap, Raydium, Bonk, Meteora, etc
 sol-trade-sdk = { git = "https://github.com/0xfnzero/sol-trade-sdk", tag = "v3.5.0" }
 ```

-**From crates.io** (when published):
+**From crates.io:**
 ```toml
 sol-trade-sdk = "3.5.0"
 ```
@@ -153,10 +153,12 @@ pub fn _create_associated_token_account_idempotent_fast(
 pub enum PdaCacheKey {
    PumpFunUserVolume(Pubkey),
    PumpFunBondingCurve(Pubkey),
+    PumpFunBondingCurveV2(Pubkey),
    PumpFunCreatorVault(Pubkey),
    BonkPool(Pubkey, Pubkey),
    BonkVault(Pubkey, Pubkey),
    PumpSwapUserVolume(Pubkey),
+    PumpSwapPoolV2(Pubkey),
 }

 /// Global lock-free PDA cache for storing computation results
@@ -76,6 +76,8 @@ pub struct TradeConfig {
    pub use_core_affinity: bool,
    /// Whether to output all SDK logs (timing, SWQOS submit/confirm, WSOL, blacklist, etc.). Default true.
    pub log_enabled: bool,
+    /// Whether to check minimum tip per SWQOS provider (filter out configs below min). Default false to save latency.
+    pub check_min_tip: bool,
 }

 impl TradeConfig {
@@ -96,6 +98,7 @@ impl TradeConfig {
            use_seed_optimize: true,           // default: use seed optimization
            use_core_affinity: true,           // default: pin parallel submit tasks to cores
            log_enabled: true,                 // default: enable all SDK logs
+            check_min_tip: false,              // default: skip min tip check to reduce latency
        }
    }

@@ -109,6 +112,12 @@ impl TradeConfig {
        self.use_seed_optimize = use_seed_optimize;
        self
    }
+
+    /// Set whether to check minimum tip per SWQOS (filter out configs below min). Default false for lower latency.
+    pub fn with_check_min_tip(mut self, check_min_tip: bool) -> Self {
+        self.check_min_tip = check_min_tip;
+        self
+    }
 }

 pub type SolanaRpcClient = solana_client::nonblocking::rpc_client::RpcClient;
@@ -13,6 +13,20 @@ pub const JITO_TIP_ACCOUNTS: &[Pubkey] = &[
    pubkey!("3AVi9Tg9Uo68tJfuvoKvqKNWKkC5wPdSSdeBnizKZ6jT"),
 ];

+/// Helius Sender tip accounts (fee recipient addresses).
+pub const HELIUS_TIP_ACCOUNTS: &[Pubkey] = &[
+    pubkey!("4ACfpUFoaSD9bfPdeu6DBt89gB6ENTeHBXCAi87NhDEE"),
+    pubkey!("D2L6yPZ2FmmmTKPgzaMKdhu6EWZcTpLy1Vhx8uvZe7NZ"),
+    pubkey!("9bnz4RShgq1hAnLnZbP8kbgBg1kEmcJBYQq3gQbmnSta"),
+    pubkey!("5VY91ws6B2hMmBFRsXkoAAdsPHBJwRfBht4DXox3xkwn"),
+    pubkey!("2nyhqdwKcJZR2vcqCyrYsaPVdAnFoJjiksCXJ7hfEYgD"),
+    pubkey!("2q5pghRs6arqVjRvT5gfgWfWcHWmw1ZuCzphgd5KfWGJ"),
+    pubkey!("wyvPkWjVZz1M8fHQnMMCDTQDbkManefNNhweYk5WkcF"),
+    pubkey!("3KCKozbAaF75qEU33jtzozcJ29yJuaLJTy2jFdzUY8bT"),
+    pubkey!("4vieeGHPYPG2MmyPRcYjdiDmmhN3ww7hsFNap8pVN3Ey"),
+    pubkey!("4TQLFNWK8AovT1gFvda5jfw2oJeRMKEmw7aH6MGBJ3or"),
+];
+
 pub const NEXTBLOCK_TIP_ACCOUNTS: &[Pubkey] = &[
    pubkey!("NextbLoCkVtMGcV47JzewQdvBpLqT9TxQFozQkN98pE"),
    pubkey!("NexTbLoCkWykbLuB1NkjXgFWkX9oAtcoagQegygXXA2"),
@@ -227,26 +241,30 @@ pub const SWQOS_ENDPOINTS_FLASHBLOCK: [&str; 8] = [
    "http://ny.flashblock.trade",
 ];

+/// BlockRazor Send Transaction v2: plain-text Base64 body, auth in URI, Content-Type: text/plain. Keep-alive: POST /v2/health.
 pub const SWQOS_ENDPOINTS_BLOCKRAZOR: [&str; 8] = [
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
-    "http://amsterdam.solana.blockrazor.xyz:443/sendTransaction",
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
-    "http://tokyo.solana.blockrazor.xyz:443/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://frankfurt.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://amsterdam.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://tokyo.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://london.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
+    "http://frankfurt.solana.blockrazor.xyz:443/v2/sendTransaction",
 ];

+/// Astralane binary API path (no Base64; use with ?api-key=...&method=sendTransaction|getHealth).
+pub const ASTRALANE_PATH_IRISB: &str = "irisb";
+
 pub const SWQOS_ENDPOINTS_ASTRALANE: [&str; 8] = [
-    "http://ny.gateway.astralane.io/iris",
-    "http://fr.gateway.astralane.io/iris",
-    "http://ams.gateway.astralane.io/iris",
-    "http://ny.gateway.astralane.io/iris",
-    "http://jp.gateway.astralane.io/iris",
-    "http://ny.gateway.astralane.io/iris",
-    "http://lax.gateway.astralane.io/iris",
-    "http://lim.gateway.astralane.io/iris",
+    "http://ny.gateway.astralane.io/irisb",
+    "http://fr.gateway.astralane.io/irisb",
+    "http://ams.gateway.astralane.io/irisb",
+    "http://ny.gateway.astralane.io/irisb",
+    "http://jp.gateway.astralane.io/irisb",
+    "http://ny.gateway.astralane.io/irisb",
+    "http://lax.gateway.astralane.io/irisb",
+    "http://lim.gateway.astralane.io/irisb",
 ];

 pub const SWQOS_ENDPOINTS_STELLIUM: [&str; 8] = [
@@ -282,6 +300,19 @@ pub const SWQOS_ENDPOINTS_SPEEDLANDING: [&str; 8] = [
    "fra.speedlanding.trade:17778",
 ];

+/// Helius Sender: POST /fast, dual routing to validators and Jito. API key optional (custom TPS only).
+/// Region order: NewYork(EWR), Frankfurt, Amsterdam, SLC, Tokyo, London, LosAngeles(SG), Default(Global).
+pub const SWQOS_ENDPOINTS_HELIUS: [&str; 8] = [
+    "https://ewr-sender.helius-rpc.com/fast",
+    "https://fra-sender.helius-rpc.com/fast",
+    "https://ams-sender.helius-rpc.com/fast",
+    "https://slc-sender.helius-rpc.com/fast",
+    "https://tyo-sender.helius-rpc.com/fast",
+    "https://lon-sender.helius-rpc.com/fast",
+    "https://sg-sender.helius-rpc.com/fast",
+    "https://sender.helius-rpc.com/fast",
+];
+
 pub const SWQOS_MIN_TIP_DEFAULT: f64 = 0.00001; // 其它SWQOS默认最低小费
 pub const SWQOS_MIN_TIP_JITO: f64 = 0.00001;
 pub const SWQOS_MIN_TIP_NEXTBLOCK: f64 = 0.001;
@@ -296,3 +327,7 @@ pub const SWQOS_MIN_TIP_STELLIUM: f64 = 0.0001; // Stellium requires minimum 0.0
 pub const SWQOS_MIN_TIP_LIGHTSPEED: f64 = 0.0001; // Lightspeed requires minimum 0.001 SOL tip
 pub const SWQOS_MIN_TIP_SOYAS: f64 = 0.001; // Soyas requires minimum 0.001 SOL tip
 pub const SWQOS_MIN_TIP_SPEEDLANDING: f64 = 0.001; // Speedlanding requires minimum 0.001 SOL tip
+/// Helius Sender: 0.0002 SOL when not swqos_only; use SWQOS_MIN_TIP_HELIUS_SWQOS_ONLY when swqos_only=true.
+pub const SWQOS_MIN_TIP_HELIUS: f64 = 0.0002;
+/// Helius Sender with swqos_only: minimum 0.000005 SOL (much lower tip allowed).
+pub const SWQOS_MIN_TIP_HELIUS_SWQOS_ONLY: f64 = 0.000005;
@@ -8,8 +8,9 @@ use crate::{
 };
 use crate::{
    instruction::utils::pumpfun::{
-        accounts, get_bonding_curve_pda, get_creator, get_user_volume_accumulator_pda,
-        global_constants::{self}, BUY_DISCRIMINATOR, BUY_EXACT_SOL_IN_DISCRIMINATOR,
+        accounts, get_bonding_curve_pda, get_bonding_curve_v2_pda, get_creator,
+        get_user_volume_accumulator_pda, global_constants::{self}, BUY_DISCRIMINATOR,
+        BUY_EXACT_SOL_IN_DISCRIMINATOR,
    },
    utils::calc::{
        common::{calculate_with_slippage_buy, calculate_with_slippage_sell},
@@ -143,7 +144,8 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
            global_constants::FEE_RECIPIENT_META
        };

-        let accounts: [AccountMeta; 16] = [
+        let bonding_curve_v2 = get_bonding_curve_v2_pda(&params.output_mint).unwrap();
+        let mut accounts: Vec<AccountMeta> = vec![
            global_constants::GLOBAL_ACCOUNT_META,
            fee_recipient_meta,
            AccountMeta::new_readonly(params.output_mint, false),
@@ -161,11 +163,12 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
            accounts::FEE_CONFIG_META,
            accounts::FEE_PROGRAM_META,
        ];
+        accounts.push(AccountMeta::new_readonly(bonding_curve_v2, false)); // bonding_curve_v2 (readonly) at end

        instructions.push(Instruction::new_with_bytes(
            accounts::PUMPFUN,
            &buy_data,
-            accounts.to_vec(),
+            accounts,
        ));

        Ok(instructions)
@@ -286,6 +289,9 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
                get_user_volume_accumulator_pda(&params.payer.pubkey()).unwrap();
            accounts.push(AccountMeta::new(user_volume_accumulator, false));
        }
+        // Program upgrade: bonding_curve_v2 (readonly) at end of account list
+        let bonding_curve_v2 = get_bonding_curve_v2_pda(&params.input_mint).unwrap();
+        accounts.push(AccountMeta::new_readonly(bonding_curve_v2, false));

        instructions.push(Instruction::new_with_bytes(
            accounts::PUMPFUN,
@@ -1,7 +1,7 @@
 use crate::{
    constants::trade::trade::DEFAULT_SLIPPAGE,
    instruction::utils::pumpswap::{
-        accounts, fee_recipient_ata, get_user_volume_accumulator_pda,
+        accounts, fee_recipient_ata, get_pool_v2_pda, get_user_volume_accumulator_pda,
        get_user_volume_accumulator_wsol_ata, BUY_DISCRIMINATOR,
        BUY_EXACT_QUOTE_IN_DISCRIMINATOR, SELL_DISCRIMINATOR,
    },
@@ -190,6 +190,11 @@ impl InstructionBuilder for PumpSwapInstructionBuilder {
                accounts.push(AccountMeta::new(wsol_ata, false));
            }
        }
+        // Program upgrade: pool_v2 (readonly) at end of account list
+        accounts.push(AccountMeta::new_readonly(
+            get_pool_v2_pda(&base_mint).unwrap(),
+            false,
+        ));

        // Create instruction data
        let mut data = [0u8; 24];
@@ -392,6 +397,11 @@ impl InstructionBuilder for PumpSwapInstructionBuilder {
                accounts.push(AccountMeta::new(accumulator, false));
            }
        }
+        // Program upgrade: pool_v2 (readonly) at end of account list
+        accounts.push(AccountMeta::new_readonly(
+            get_pool_v2_pda(&base_mint).unwrap(),
+            false,
+        ));

        // Create instruction data
        let mut data = [0u8; 24];
@@ -7,6 +7,8 @@ use std::sync::Arc;
 pub mod seeds {
    /// Seed for bonding curve PDAs
    pub const BONDING_CURVE_SEED: &[u8] = b"bonding-curve";
+    /// Seed for bonding curve v2 PDA (required by program upgrade, readonly at end of account list)
+    pub const BONDING_CURVE_V2_SEED: &[u8] = b"bonding-curve-v2";

    /// Seed for creator vault PDAs
    pub const CREATOR_VAULT_SEED: &[u8] = b"creator-vault";
@@ -178,6 +180,20 @@ pub fn get_bonding_curve_pda(mint: &Pubkey) -> Option<Pubkey> {
    )
 }

+/// Bonding curve v2 PDA (seeds: ["bonding-curve-v2", mint]). Required at end of buy/sell/buy_exact_sol_in accounts.
+#[inline]
+pub fn get_bonding_curve_v2_pda(mint: &Pubkey) -> Option<Pubkey> {
+    crate::common::fast_fn::get_cached_pda(
+        crate::common::fast_fn::PdaCacheKey::PumpFunBondingCurveV2(*mint),
+        || {
+            let seeds: &[&[u8]; 2] = &[seeds::BONDING_CURVE_V2_SEED, mint.as_ref()];
+            let program_id: &Pubkey = &accounts::PUMPFUN;
+            let pda: Option<(Pubkey, u8)> = Pubkey::try_find_program_address(seeds, program_id);
+            pda.map(|pubkey| pubkey.0)
+        },
+    )
+}
+
 #[inline]
 pub fn get_creator(creator_vault_pda: &Pubkey) -> Pubkey {
    if creator_vault_pda.eq(&Pubkey::default()) {
@@ -26,6 +26,9 @@ pub mod seeds {
    pub const USER_VOLUME_ACCUMULATOR_SEED: &[u8] = b"user_volume_accumulator";
    pub const GLOBAL_VOLUME_ACCUMULATOR_SEED: &[u8] = b"global_volume_accumulator";
    pub const FEE_CONFIG_SEED: &[u8] = b"fee_config";
+
+    /// Seed for pool v2 PDA (required by program upgrade, readonly at end of account list)
+    pub const POOL_V2_SEED: &[u8] = b"pool-v2";
 }

 /// Constants related to program accounts and authorities
@@ -139,6 +142,16 @@ pub const BUY_DISCRIMINATOR: [u8; 8] = [102, 6, 61, 18, 1, 218, 235, 234];
 pub const BUY_EXACT_QUOTE_IN_DISCRIMINATOR: [u8; 8] = [198, 46, 21, 82, 180, 217, 232, 112];
 pub const SELL_DISCRIMINATOR: [u8; 8] = [51, 230, 133, 164, 1, 127, 131, 173];

+/// Pool v2 PDA (seeds: ["pool-v2", base_mint]). Required at end of buy/sell/buy_exact_quote_in accounts.
+#[inline]
+pub fn get_pool_v2_pda(base_mint: &Pubkey) -> Option<Pubkey> {
+    let (pda, _) = Pubkey::find_program_address(
+        &[seeds::POOL_V2_SEED, base_mint.as_ref()],
+        &accounts::AMM_PROGRAM,
+    );
+    Some(pda)
+}
+
 // Find a pool for a specific mint
 pub async fn find_pool(rpc: &SolanaRpcClient, mint: &Pubkey) -> Result<Pubkey, anyhow::Error> {
    let (pool_address, _) = find_by_mint(rpc, mint).await?;
@@ -157,6 +157,8 @@ pub struct TradingClient {
    pub use_core_affinity: bool,
    /// Whether to output all SDK logs (from TradeConfig.log_enabled).
    pub log_enabled: bool,
+    /// Whether to check minimum tip per SWQOS (from TradeConfig.check_min_tip). Default false for lower latency.
+    pub check_min_tip: bool,
 }

 static INSTANCE: Mutex<Option<Arc<TradingClient>>> = Mutex::new(None);
@@ -173,6 +175,7 @@ impl Clone for TradingClient {
            use_seed_optimize: self.use_seed_optimize,
            use_core_affinity: self.use_core_affinity,
            log_enabled: self.log_enabled,
+            check_min_tip: self.check_min_tip,
        }
    }
 }
@@ -301,6 +304,7 @@ impl TradingClient {
            use_seed_optimize,
            use_core_affinity: true,
            log_enabled: true,
+            check_min_tip: false,
        }
    }

@@ -340,6 +344,7 @@ impl TradingClient {
            use_seed_optimize,
            use_core_affinity: true,
            log_enabled: true,
+            check_min_tip: false,
        }
    }

@@ -503,6 +508,7 @@ impl TradingClient {
            use_seed_optimize: trade_config.use_seed_optimize,
            use_core_affinity: trade_config.use_core_affinity,
            log_enabled: trade_config.log_enabled,
+            check_min_tip: trade_config.check_min_tip,
        };

        let mut current = INSTANCE.lock();
@@ -636,6 +642,7 @@ impl TradingClient {
            simulate: params.simulate,
            log_enabled: self.log_enabled,
            use_core_affinity: self.use_core_affinity,
+            check_min_tip: self.check_min_tip,
            grpc_recv_us: params.grpc_recv_us,
            use_exact_sol_amount: params.use_exact_sol_amount,
        };
@@ -732,6 +739,7 @@ impl TradingClient {
            simulate: params.simulate,
            log_enabled: self.log_enabled,
            use_core_affinity: self.use_core_affinity,
+            check_min_tip: self.check_min_tip,
            grpc_recv_us: params.grpc_recv_us,
            use_exact_sol_amount: None,
        };
@@ -1,13 +1,12 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
-use serde_json::json;
 use std::{sync::Arc, time::Instant};

 use std::time::Duration;
-use solana_transaction_status::UiTransactionEncoding;
-
 use anyhow::Result;
+use bincode::serialize as bincode_serialize;
+use solana_client::rpc_client::SerializableTransaction;
 use solana_sdk::transaction::VersionedTransaction;
 use crate::swqos::{SwqosType, TradeType};
 use crate::swqos::SwqosClientTrait;
@@ -17,6 +16,9 @@ use crate::{common::SolanaRpcClient, constants::swqos::ASTRALANE_TIP_ACCOUNTS};
 use tokio::task::JoinHandle;
 use std::sync::atomic::{AtomicBool, Ordering};

+/// Empty body for getHealth POST; avoid per-request allocation.
+static PING_BODY: &[u8] = &[];
+
 #[derive(Clone)]
 pub struct AstralaneClient {
    pub endpoint: String,
@@ -50,19 +52,7 @@ impl SwqosClientTrait for AstralaneClient {
 impl AstralaneClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(300))
-            .pool_max_idle_per_host(4)
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        
        let client = Self { 
            rpc_client: Arc::new(rpc_client), 
@@ -90,13 +80,9 @@ impl AstralaneClient {
        let stop_ping = self.stop_ping.clone();
        
        let handle = tokio::spawn(async move {
-            // Immediate first ping to warm connection and reduce first-submit cold start latency
-            if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
-                eprintln!("Astralane ping request failed: {}", e);
-            }
            let mut interval = tokio::time::interval(Duration::from_secs(30));
            loop {
-                interval.tick().await;
+                interval.tick().await; // first tick completes immediately → one ping at start
                if stop_ping.load(Ordering::Relaxed) {
                    break;
                }
@@ -116,71 +102,49 @@ impl AstralaneClient {
        }
    }

-    /// Send ping request to /gethealth endpoint
+    /// Send ping request: POST endpoint?api-key=...&method=getHealth (endpoint is irisb from constants).
    async fn send_ping_request(http_client: &Client, endpoint: &str, auth_token: &str) -> Result<()> {
-        // Build ping URL by replacing /iris with /gethealth
-        let ping_url = if endpoint.ends_with("/iris") {
-            endpoint.replace("/iris", "/gethealth")
-        } else if endpoint.ends_with("/iris/") {
-            endpoint.replace("/iris/", "/gethealth")
-        } else if endpoint.ends_with('/') {
-            format!("{}gethealth", endpoint)
-        } else {
-            format!("{}/gethealth", endpoint)
-        };
-
-        // Short timeout for ping; consume body so connection is returned to pool for reuse by submit
-        let response = http_client.get(&ping_url)
-            .header("api_key", auth_token)
+        let response = http_client
+            .post(endpoint)
+            .query(&[("api-key", auth_token), ("method", "getHealth")])
            .timeout(Duration::from_millis(1500))
+            .body(PING_BODY)
            .send()
            .await?;
        let status = response.status();
-        let _ = response.bytes().await;
+        let _ = response.bytes().await; // consume body so connection returns to pool
        if !status.is_success() {
            eprintln!("Astralane ping request returned non-success status: {}", status);
        }
        Ok(())
    }

+    /// Send transaction via /irisb binary API (no Base64; lower latency).
    pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
        let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
+        let signature = transaction.get_signature();

-        let request_body = serde_json::to_string(&json!({
-            "jsonrpc": "2.0",
-            "id": 1,
-            "method": "sendTransaction",
-            "params": [
-                content,
-                { "encoding": "base64", "skipPreflight": true },
-                { "mevProtect": false }
-            ]
-        }))?;
+        let body_bytes = bincode_serialize(transaction).map_err(|e| anyhow::anyhow!("Astralane binary serialize failed: {}", e))?;

-        // Send request with api_key header
-        let response_text = self.http_client.post(&self.endpoint)
-            .body(request_body)
-            .header("Content-Type", "application/json")
-            .header("api_key", &self.auth_token)
+        let response = self.http_client
+            .post(&self.endpoint)
+            .query(&[("api-key", self.auth_token.as_str()), ("method", "sendTransaction")])
+            .header("Content-Type", "application/octet-stream")
+            .body(body_bytes)
            .send()
-            .await?
-            .text()
            .await?;

-        // Parse JSON response
-        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
-            if response_json.get("result").is_some() {
-                println!(" [astralane] {} submitted: {:?}", trade_type, start_time.elapsed());
-            } else if let Some(_error) = response_json.get("error") {
-                eprintln!(" [astralane] {} submission failed: {:?}", trade_type, _error);
-            }
+        let status = response.status();
+        let _ = response.bytes().await;
+        if status.is_success() {
+            println!(" [astralane] {} submitted: {:?}", trade_type, start_time.elapsed());
        } else {
-            eprintln!(" [astralane] {} submission failed: {:?}", trade_type, response_text);
+            eprintln!(" [astralane] {} submission failed: status {}", trade_type, status);
+            return Err(anyhow::anyhow!("Astralane sendTransaction failed: {}", status));
        }

-        let start_time: Instant = Instant::now();
-        match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
+        let start_time = Instant::now();
+        match poll_transaction_confirmation(&self.rpc_client, *signature, wait_confirmation).await {
            Ok(_) => (),
            Err(e) => {
                println!(" signature: {:?}", signature);
@@ -1,7 +1,6 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
-use reqwest::{Client, header::{HeaderMap, HeaderValue, CONTENT_TYPE}};
-use serde_json::json;
+use reqwest::Client;
 use std::{sync::Arc, time::Instant};

 use std::time::Duration;
@@ -50,19 +49,7 @@ impl SwqosClientTrait for BlockRazorClient {
 impl BlockRazorClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(300))  // 5min so ping-kept connection is not evicted early
-            .pool_max_idle_per_host(4)    // Few connections so submit reuses same connection as ping, avoiding cold connection after ~5min server idle close
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        
        let client = Self { 
            rpc_client: Arc::new(rpc_client), 
@@ -120,31 +107,15 @@ impl BlockRazorClient {
        }
    }

-    /// Send ping request to /health endpoint
+    /// Send ping request: POST /v2/health?auth=... (Keep Alive). Only required param: auth.
    async fn send_ping_request(http_client: &Client, endpoint: &str, auth_token: &str) -> Result<()> {
-        // Build health URL by replacing sendTransaction with health
-        let ping_url = if endpoint.ends_with("sendTransaction") {
-            endpoint.replace("sendTransaction", "health")
-        } else if endpoint.ends_with("/sendTransaction") {
-            endpoint.replace("/sendTransaction", "/health")
-        } else {
-            // Fallback to original logic if endpoint doesn't end with sendTransaction
-            if endpoint.ends_with('/') {
-                format!("{}health", endpoint)
-            } else {
-                format!("{}/health", endpoint)
-            }
-        };
-
-        // Prepare headers
-        let mut headers = HeaderMap::new();
-        headers.insert("apikey", HeaderValue::from_str(auth_token)?);
-        headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/json"));
-
-        // Short timeout for ping; consume body so connection is returned to pool for reuse by submit
-        let response = http_client.get(&ping_url)
-            .headers(headers)
+        let ping_url = endpoint.replace("/v2/sendTransaction", "/v2/health");
+        let response = http_client
+            .post(&ping_url)
+            .query(&[("auth", auth_token)])
+            .header("Content-Type", "text/plain")
            .timeout(Duration::from_millis(1500))
+            .body(&[] as &[u8])
            .send()
            .await?;
        let status = response.status();
@@ -155,40 +126,33 @@ impl BlockRazorClient {
        Ok(())
    }

+    /// Send transaction via v2 API: plain Base64 body, Content-Type: text/plain. Only required URI param: auth.
    pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
        let start_time = Instant::now();
        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;

-        // BlockRazor fast-mode request format
-        let request_body = serde_json::to_string(&json!({
-            "transaction": content,
-            "mode": "fast"
-        }))?;
-
-        // BlockRazor uses apikey header
-        let response_text = self.http_client.post(&self.endpoint)
-            .body(request_body)
-            .header("Content-Type", "application/json")
-            .header("apikey", &self.auth_token)
+        let response = self.http_client
+            .post(&self.endpoint)
+            .query(&[("auth", self.auth_token.as_str())])
+            .header("Content-Type", "text/plain")
+            .body(content)
            .send()
-            .await?
-            .text()
            .await?;

-        // Parse JSON response
-        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
+        let status = response.status();
+        let _ = response.bytes().await;
+        if status.is_success() {
            if crate::common::sdk_log::sdk_log_enabled() {
-                if response_json.get("result").is_some() || response_json.get("signature").is_some() {
-                    println!(" [blockrazor] {} submitted: {:?}", trade_type, start_time.elapsed());
-                } else if let Some(_error) = response_json.get("error") {
-                    eprintln!(" [blockrazor] {} submission failed: {:?}", trade_type, _error);
-                }
+                println!(" [blockrazor] {} submitted: {:?}", trade_type, start_time.elapsed());
            }
-        } else if crate::common::sdk_log::sdk_log_enabled() {
-            eprintln!(" [blockrazor] {} submission failed: {:?}", trade_type, response_text);
+        } else {
+            if crate::common::sdk_log::sdk_log_enabled() {
+                eprintln!(" [blockrazor] {} submission failed: status {}", trade_type, status);
+            }
+            return Err(anyhow::anyhow!("BlockRazor sendTransaction failed: {}", status));
        }

-        let start_time: Instant = Instant::now();
+        let start_time = Instant::now();
        match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
            Ok(_) => (),
            Err(e) => {
@@ -89,41 +89,64 @@ pub async fn poll_transaction_confirmation(
    txt_sig: Signature,
    wait_confirmation: bool,
 ) -> Result<Signature> {
-    // If no confirmation needed, return signature immediately
+    poll_any_transaction_confirmation(rpc, &[txt_sig], wait_confirmation).await
+}
+
+/// Poll multiple signatures in parallel (one RPC call per poll) and return the first one that confirms.
+/// When transactions are submitted to multiple SWQOS channels, each channel produces a different
+/// signature. Only one will land on-chain, so we must check all of them.
+pub async fn poll_any_transaction_confirmation(
+    rpc: &SolanaRpcClient,
+    signatures: &[Signature],
+    wait_confirmation: bool,
+) -> Result<Signature> {
+    if signatures.is_empty() {
+        return Err(anyhow::anyhow!("No signatures to confirm"));
+    }
+    // If no confirmation needed, return first signature immediately
    if !wait_confirmation {
-        return Ok(txt_sig);
+        return Ok(signatures[0]);
    }

-    let timeout: Duration = Duration::from_secs(15); // 15s to avoid timeout under network congestion
+    let timeout: Duration = Duration::from_secs(15);
    let interval: Duration = Duration::from_millis(1000);
    let start: Instant = Instant::now();
    let mut poll_count = 0u32;
+    // Track which signature landed (confirmed or failed on-chain)
+    let mut landed_sig: Option<Signature> = None;

    loop {
        if start.elapsed() >= timeout {
-            return Err(anyhow::anyhow!("Transaction {}'s confirmation timed out", txt_sig));
+            return Err(anyhow::anyhow!("Transaction confirmation timed out after {}s ({} signatures polled)", timeout.as_secs(), signatures.len()));
        }

        poll_count += 1;

-        let status = rpc.get_signature_statuses(&[txt_sig]).await?;
-        let first = status.value.get(0).and_then(|o| o.as_ref());
-        match first {
-            Some(s) => {
+        let status = rpc.get_signature_statuses(signatures).await?;
+        // Check all signatures for any that confirmed successfully
+        for (i, maybe_status) in status.value.iter().enumerate() {
+            if let Some(s) = maybe_status {
                if s.err.is_none()
                    && (s.confirmation_status == Some(TransactionConfirmationStatus::Confirmed)
                        || s.confirmation_status == Some(TransactionConfirmationStatus::Finalized))
                {
-                    return Ok(txt_sig);
+                    return Ok(signatures[i]);
+                }
+                // Track the first signature that landed on-chain (even if errored)
+                if landed_sig.is_none() {
+                    landed_sig = Some(signatures[i]);
                }
-            }
-            None => {
-                sleep(interval).await;
-                continue;
            }
        }

-        let should_get_transaction = first.map(|s| s.err.is_some()).unwrap_or(false) || poll_count >= 10;
+        // If no signature has any status yet, keep waiting
+        if landed_sig.is_none() {
+            sleep(interval).await;
+            continue;
+        }
+
+        let landed = landed_sig.unwrap();
+        let should_get_transaction = poll_count >= 10;

        if !should_get_transaction {
            sleep(interval).await;
@@ -132,7 +155,7 @@ pub async fn poll_transaction_confirmation(

        let tx_details = match rpc
            .get_transaction_with_config(
-                &txt_sig,
+                &landed,
                RpcTransactionConfig {
                    encoding: Some(UiTransactionEncoding::JsonParsed),
                    max_supported_transaction_version: Some(0),
@@ -155,7 +178,7 @@ pub async fn poll_transaction_confirmation(
        } else {
            let meta = meta.unwrap();
            if meta.err.is_none() {
-                return Ok(txt_sig);
+                return Ok(landed);
            } else {
                // Extract error message from log_messages
                let mut error_msg = String::new();
@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};

-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;

 use anyhow::Result;
@@ -46,19 +45,7 @@ impl SwqosClientTrait for FlashBlockClient {
 impl FlashBlockClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
    }

@@ -0,0 +1,220 @@
+//! Helius Sender SWQOS client.
+//!
+//! Ultra-low latency transaction submission with dual routing to validators and Jito.
+//! All transactions must include tips, priority fees, and skip preflight.
+//! - Without swqos_only: minimum tip 0.0002 SOL.
+//! - With swqos_only=true: minimum tip 0.000005 SOL (much lower, benefit of Helius).
+//! API: POST {endpoint}/fast with JSON-RPC sendTransaction.
+//! Optional query: api-key (custom TPS only), swqos_only (SWQOS-only routing, lower min tip).
+
+use crate::swqos::common::{
+    default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode,
+};
+use anyhow::Result;
+use rand::seq::IndexedRandom;
+use reqwest::Client;
+use serde_json::json;
+use solana_sdk::transaction::VersionedTransaction;
+use solana_transaction_status::UiTransactionEncoding;
+use std::sync::Arc;
+use std::time::Instant;
+
+use crate::common::SolanaRpcClient;
+use crate::constants::swqos::{HELIUS_TIP_ACCOUNTS, SWQOS_MIN_TIP_HELIUS, SWQOS_MIN_TIP_HELIUS_SWQOS_ONLY};
+use crate::swqos::{SwqosClientTrait, SwqosType, TradeType};
+
+#[derive(Clone)]
+pub struct HeliusClient {
+    /// Cached full URL with query params (auth/swqos_only) to avoid per-request allocation.
+    pub submit_url: String,
+    pub rpc_client: Arc<SolanaRpcClient>,
+    pub http_client: Client,
+    /// When true, min_tip_sol() returns 0.000005; else 0.0002.
+    swqos_only: bool,
+}
+
+impl HeliusClient {
+    pub fn new(
+        rpc_url: String,
+        endpoint: String,
+        api_key: Option<String>,
+        swqos_only: bool,
+    ) -> Self {
+        let rpc_client = SolanaRpcClient::new(rpc_url);
+        let http_client = default_http_client_builder().build().unwrap();
+        let submit_url = Self::build_submit_url(&endpoint, api_key.as_deref(), swqos_only);
+        Self {
+            submit_url,
+            rpc_client: Arc::new(rpc_client),
+            http_client,
+            swqos_only,
+        }
+    }
+
+    /// Build URL once at construction; no per-request allocation.
+    #[inline]
+    fn build_submit_url(endpoint: &str, api_key: Option<&str>, swqos_only: bool) -> String {
+        let mut url = endpoint.to_string();
+        let mut has_query = endpoint.contains('?');
+        if let Some(key) = api_key {
+            if !key.is_empty() {
+                url.push_str(if has_query { "&" } else { "?" });
+                url.push_str("api-key=");
+                url.push_str(key);
+                has_query = true;
+            }
+        }
+        if swqos_only {
+            url.push_str(if has_query { "&" } else { "?" });
+            url.push_str("swqos_only=true");
+        }
+        url
+    }
+
+    pub async fn send_transaction(
+        &self,
+        trade_type: TradeType,
+        transaction: &VersionedTransaction,
+        wait_confirmation: bool,
+    ) -> Result<()> {
+        let start_time = Instant::now();
+        let (content, signature) =
+            serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
+
+        let request_body = serde_json::to_string(&json!({
+            "jsonrpc": "2.0",
+            "id": "1",
+            "method": "sendTransaction",
+            "params": [
+                content,
+                {
+                    "encoding": "base64",
+                    "skipPreflight": true,
+                    "maxRetries": 0
+                }
+            ]
+        }))?;
+
+        let response = self
+            .http_client
+            .post(&self.submit_url)
+            .body(request_body)
+            .header("Content-Type", "application/json")
+            .send()
+            .await?;
+
+        let status = response.status();
+        let response_text = response.text().await?;
+
+        if !status.is_success() {
+            if crate::common::sdk_log::sdk_log_enabled() {
+                eprintln!(
+                    " [helius] {} submission failed status={} body={}",
+                    trade_type, status, response_text
+                );
+            }
+            return Err(anyhow::anyhow!(
+                "Helius Sender failed: status={} body={}",
+                status,
+                response_text
+            ));
+        }
+
+        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
+            if response_json.get("error").is_some() {
+                let err_msg = response_json["error"]
+                    .get("message")
+                    .and_then(|v| v.as_str())
+                    .unwrap_or("unknown");
+                if crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!(" [helius] {} submission error: {}", trade_type, err_msg);
+                }
+                return Err(anyhow::anyhow!("Helius Sender error: {}", err_msg));
+            }
+            if response_json.get("result").is_some() && crate::common::sdk_log::sdk_log_enabled() {
+                println!(
+                    " [helius] {} submitted: {:?}",
+                    trade_type,
+                    start_time.elapsed()
+                );
+            }
+        } else if crate::common::sdk_log::sdk_log_enabled() {
+            eprintln!(
+                " [helius] {} submission failed: {:?}",
+                trade_type, response_text
+            );
+        }
+
+        match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
+            Ok(_) => (),
+            Err(e) => {
+                if crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!(
+                        " [helius] {} confirmation failed: {:?}",
+                        trade_type,
+                        start_time.elapsed()
+                    );
+                }
+                return Err(e);
+            }
+        }
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
+            println!(
+                " signature: {:?}",
+                signature
+            );
+            println!(
+                " [helius] {} confirmed: {:?}",
+                trade_type,
+                start_time.elapsed()
+            );
+        }
+        Ok(())
+    }
+}
+
+#[async_trait::async_trait]
+impl SwqosClientTrait for HeliusClient {
+    async fn send_transaction(
+        &self,
+        trade_type: TradeType,
+        transaction: &VersionedTransaction,
+        wait_confirmation: bool,
+    ) -> Result<()> {
+        HeliusClient::send_transaction(self, trade_type, transaction, wait_confirmation).await
+    }
+
+    async fn send_transactions(
+        &self,
+        trade_type: TradeType,
+        transactions: &Vec<VersionedTransaction>,
+        wait_confirmation: bool,
+    ) -> Result<()> {
+        for transaction in transactions {
+            self.send_transaction(trade_type, transaction, wait_confirmation)
+                .await?;
+        }
+        Ok(())
+    }
+
+    fn get_tip_account(&self) -> Result<String> {
+        let tip_account = *HELIUS_TIP_ACCOUNTS
+            .choose(&mut rand::rng())
+            .or_else(|| HELIUS_TIP_ACCOUNTS.first())
+            .unwrap();
+        Ok(tip_account.to_string())
+    }
+
+    fn get_swqos_type(&self) -> SwqosType {
+        SwqosType::Helius
+    }
+
+    #[inline(always)]
+    fn min_tip_sol(&self) -> f64 {
+        if self.swqos_only {
+            SWQOS_MIN_TIP_HELIUS_SWQOS_ONLY
+        } else {
+            SWQOS_MIN_TIP_HELIUS
+        }
+    }
+}
@@ -1,11 +1,10 @@

-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode, FormatBase64VersionedTransaction};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode, FormatBase64VersionedTransaction};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};

-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;

 use anyhow::Result;
@@ -49,19 +48,7 @@ impl SwqosClientTrait for JitoClient {
 impl JitoClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
    }

@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};

-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;

 use anyhow::Result;
@@ -47,19 +46,7 @@ impl LightspeedClient {
        // Lightspeed endpoint should already include /lightspeed path
        // Format: https://<tier>.rpc.solanavibestation.com/lightspeed?api_key=<key>
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)
-            .tcp_keepalive(Some(Duration::from_secs(60)))
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))
-            .connect_timeout(Duration::from_millis(2000))
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
    }

@@ -14,6 +14,7 @@ pub mod stellium;
 pub mod lightspeed;
 pub mod soyas;
 pub mod speedlanding;
+pub mod helius;

 use std::sync::Arc;

@@ -37,7 +38,23 @@ use crate::{
        SWQOS_ENDPOINTS_ASTRALANE,
        SWQOS_ENDPOINTS_STELLIUM,
        SWQOS_ENDPOINTS_SOYAS,
-        SWQOS_ENDPOINTS_SPEEDLANDING
+        SWQOS_ENDPOINTS_SPEEDLANDING,
+        SWQOS_ENDPOINTS_HELIUS,
+        SWQOS_MIN_TIP_DEFAULT,
+        SWQOS_MIN_TIP_JITO,
+        SWQOS_MIN_TIP_NEXTBLOCK,
+        SWQOS_MIN_TIP_ZERO_SLOT,
+        SWQOS_MIN_TIP_TEMPORAL,
+        SWQOS_MIN_TIP_BLOXROUTE,
+        SWQOS_MIN_TIP_NODE1,
+        SWQOS_MIN_TIP_FLASHBLOCK,
+        SWQOS_MIN_TIP_BLOCKRAZOR,
+        SWQOS_MIN_TIP_ASTRALANE,
+        SWQOS_MIN_TIP_STELLIUM,
+        SWQOS_MIN_TIP_LIGHTSPEED,
+        SWQOS_MIN_TIP_SOYAS,
+        SWQOS_MIN_TIP_SPEEDLANDING,
+        SWQOS_MIN_TIP_HELIUS,
    },
    swqos::{
        bloxroute::BloxrouteClient,
@@ -54,6 +71,7 @@ use crate::{
        lightspeed::LightspeedClient,
        soyas::SoyasClient,
        speedlanding::SpeedlandingClient,
+        helius::HeliusClient,
    }
 };

@@ -103,6 +121,7 @@ pub enum SwqosType {
    Lightspeed,
    Soyas,
    Speedlanding,
+    Helius,
    Default,
 }

@@ -121,6 +140,8 @@ impl SwqosType {
            Self::Stellium,
            Self::Lightspeed,
            Self::Soyas,
+            Self::Speedlanding,
+            Self::Helius,
            Self::Default,
        ]
    }
@@ -134,6 +155,27 @@ pub trait SwqosClientTrait {
    async fn send_transactions(&self, trade_type: TradeType, transactions: &Vec<VersionedTransaction>, wait_confirmation: bool) -> Result<()>;
    fn get_tip_account(&self) -> Result<String>;
    fn get_swqos_type(&self) -> SwqosType;
+    /// Minimum tip in SOL required by this provider. Helius returns lower value when swqos_only is true.
+    #[inline]
+    fn min_tip_sol(&self) -> f64 {
+        match self.get_swqos_type() {
+            SwqosType::Jito => SWQOS_MIN_TIP_JITO,
+            SwqosType::NextBlock => SWQOS_MIN_TIP_NEXTBLOCK,
+            SwqosType::ZeroSlot => SWQOS_MIN_TIP_ZERO_SLOT,
+            SwqosType::Temporal => SWQOS_MIN_TIP_TEMPORAL,
+            SwqosType::Bloxroute => SWQOS_MIN_TIP_BLOXROUTE,
+            SwqosType::Node1 => SWQOS_MIN_TIP_NODE1,
+            SwqosType::FlashBlock => SWQOS_MIN_TIP_FLASHBLOCK,
+            SwqosType::BlockRazor => SWQOS_MIN_TIP_BLOCKRAZOR,
+            SwqosType::Astralane => SWQOS_MIN_TIP_ASTRALANE,
+            SwqosType::Stellium => SWQOS_MIN_TIP_STELLIUM,
+            SwqosType::Lightspeed => SWQOS_MIN_TIP_LIGHTSPEED,
+            SwqosType::Soyas => SWQOS_MIN_TIP_SOYAS,
+            SwqosType::Speedlanding => SWQOS_MIN_TIP_SPEEDLANDING,
+            SwqosType::Helius => SWQOS_MIN_TIP_HELIUS,
+            SwqosType::Default => SWQOS_MIN_TIP_DEFAULT,
+        }
+    }
 }

 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -180,6 +222,9 @@ pub enum SwqosConfig {
    /// To apply for an API key, please contact -> https://t.me/speedlanding_bot?start=0xzero
    /// Minimum tip: 0.001 SOL
    Speedlanding(String, SwqosRegion, Option<String>),
+    /// Helius Sender: dual routing to validators and Jito. API key optional (custom TPS only).
+    /// (api_key, region, custom_url, swqos_only). swqos_only: None => false (min tip 0.0002 SOL); Some(true) => SWQOS-only (min tip 0.000005 SOL, much lower).
+    Helius(String, SwqosRegion, Option<String>, Option<bool>),
 }

 impl SwqosConfig {
@@ -199,6 +244,7 @@ impl SwqosConfig {
            SwqosConfig::Lightspeed(_, _, _) => SwqosType::Lightspeed,
            SwqosConfig::Soyas(_, _, _) => SwqosType::Soyas,
            SwqosConfig::Speedlanding(_, _, _) => SwqosType::Speedlanding,
+            SwqosConfig::Helius(_, _, _, _) => SwqosType::Helius,
        }
    }

@@ -226,6 +272,7 @@ impl SwqosConfig {
            SwqosType::Lightspeed => "".to_string(), // Lightspeed requires custom URL with api_key
            SwqosType::Soyas => SWQOS_ENDPOINTS_SOYAS[region as usize].to_string(),
            SwqosType::Speedlanding => SWQOS_ENDPOINTS_SPEEDLANDING[region as usize].to_string(),
+            SwqosType::Helius => SWQOS_ENDPOINTS_HELIUS[region as usize].to_string(),
            SwqosType::Default => "".to_string(),
        }
    }
@@ -349,6 +396,18 @@ impl SwqosConfig {
                ).await?;
                Ok(Arc::new(speedlanding_client))
            },
+            SwqosConfig::Helius(api_key, region, url, swqos_only) => {
+                let swqos_only = swqos_only.unwrap_or(false);
+                let endpoint = SwqosConfig::get_endpoint(SwqosType::Helius, region, url.clone());
+                let api_key_opt = if api_key.is_empty() { None } else { Some(api_key.clone()) };
+                let helius_client = HeliusClient::new(
+                    rpc_url.clone(),
+                    endpoint,
+                    api_key_opt,
+                    swqos_only,
+                );
+                Ok(Arc::new(helius_client))
+            },
            SwqosConfig::Default(endpoint) => {
                let rpc = SolanaRpcClient::new_with_commitment(
                    endpoint,
@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};

-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;

 use anyhow::Result;
@@ -51,19 +50,7 @@ impl NextBlockClient {
            format!("{}/api/v2/submit", endpoint.trim_end_matches('/'))
        };
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
    }

@@ -1,5 +1,5 @@

-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
@@ -76,19 +76,7 @@ impl SwqosClientTrait for TemporalClient {
 impl TemporalClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(300))
-            .pool_max_idle_per_host(4)
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        
        let client = Self { 
            rpc_client: Arc::new(rpc_client), 
@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};

-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;

 use anyhow::Result;
@@ -46,19 +45,7 @@ impl SwqosClientTrait for ZeroSlotClient {
 impl ZeroSlotClient {
    pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
        let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
+        let http_client = default_http_client_builder().build().unwrap();
        Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
    }

@@ -15,22 +15,6 @@ use crate::{
    common::{GasFeeStrategy, SolanaRpcClient},
    swqos::{SwqosClient, SwqosType, TradeType},
    trading::{common::build_transaction, MiddlewareManager},
-    constants::swqos::{
-        SWQOS_MIN_TIP_DEFAULT,
-        SWQOS_MIN_TIP_JITO,
-        SWQOS_MIN_TIP_NEXTBLOCK,
-        SWQOS_MIN_TIP_ZERO_SLOT,
-        SWQOS_MIN_TIP_TEMPORAL,
-        SWQOS_MIN_TIP_BLOXROUTE,
-        SWQOS_MIN_TIP_NODE1,
-        SWQOS_MIN_TIP_FLASHBLOCK,
-        SWQOS_MIN_TIP_BLOCKRAZOR,
-        SWQOS_MIN_TIP_ASTRALANE,
-        SWQOS_MIN_TIP_STELLIUM,
-        SWQOS_MIN_TIP_LIGHTSPEED,
-        SWQOS_MIN_TIP_SOYAS,
-        SWQOS_MIN_TIP_SPEEDLANDING
-    },
 };

 #[repr(align(64))]
@@ -220,6 +204,7 @@ pub async fn execute_parallel(
    with_tip: bool,
    gas_fee_strategy: GasFeeStrategy,
    use_core_affinity: bool,
+    check_min_tip: bool,
 ) -> Result<(bool, Vec<Signature>, Option<anyhow::Error>)> {
    let _exec_start = Instant::now();

@@ -247,33 +232,23 @@ pub async fn execute_parallel(
            with_tip || matches!(swqos_client.get_swqos_type(), SwqosType::Default)
        })
        .flat_map(|(i, swqos_client)| {
+            let swqos_type = swqos_client.get_swqos_type();
            let gas_fee_strategy_configs = gas_fee_strategy.get_strategies(if is_buy {
                TradeType::Buy
            } else {
                TradeType::Sell
            });
+            let check_tip = with_tip && !matches!(swqos_type, SwqosType::Default) && check_min_tip;
+            let min_tip = if check_tip {
+                swqos_client.min_tip_sol()
+            } else {
+                0.0
+            };
            gas_fee_strategy_configs
                .into_iter()
-                .filter(|config| config.0.eq(&swqos_client.get_swqos_type()))
-                .filter(|config| {
-                    // When tip required and not Default, filter by provider minimum tip
-                    if with_tip && !matches!(config.0, SwqosType::Default) {
-                        let min_tip = match config.0 {
-                            SwqosType::Jito => SWQOS_MIN_TIP_JITO,
-                            SwqosType::NextBlock => SWQOS_MIN_TIP_NEXTBLOCK,
-                            SwqosType::ZeroSlot => SWQOS_MIN_TIP_ZERO_SLOT,
-                            SwqosType::Temporal => SWQOS_MIN_TIP_TEMPORAL,
-                            SwqosType::Bloxroute => SWQOS_MIN_TIP_BLOXROUTE,
-                            SwqosType::Node1 => SWQOS_MIN_TIP_NODE1,
-                            SwqosType::FlashBlock => SWQOS_MIN_TIP_FLASHBLOCK,
-                            SwqosType::BlockRazor => SWQOS_MIN_TIP_BLOCKRAZOR,
-                            SwqosType::Astralane => SWQOS_MIN_TIP_ASTRALANE,
-                            SwqosType::Stellium => SWQOS_MIN_TIP_STELLIUM,
-                            SwqosType::Lightspeed => SWQOS_MIN_TIP_LIGHTSPEED,
-                            SwqosType::Soyas => SWQOS_MIN_TIP_SOYAS,
-                            SwqosType::Speedlanding => SWQOS_MIN_TIP_SPEEDLANDING,
-                            SwqosType::Default => SWQOS_MIN_TIP_DEFAULT,
-                        };
+                .filter(move |config| config.0 == swqos_type)
+                .filter(move |config| {
+                    if check_tip {
                        if config.2.tip < min_tip && crate::common::sdk_log::sdk_log_enabled() {
                            println!(
                                "⚠️ Config filtered: {:?} tip {} is below minimum required {}",
@@ -11,7 +11,7 @@ use tracing::{info, trace, warn};
 use crate::{
    common::{nonce_cache::DurableNonceInfo, GasFeeStrategy, SolanaRpcClient},
    perf::syscall_bypass::SystemCallBypassManager,
-    swqos::common::poll_transaction_confirmation,
+    swqos::common::poll_any_transaction_confirmation,
    trading::core::{
        async_executor::execute_parallel,
        execution::{InstructionProcessor, Prefetch},
@@ -129,6 +129,7 @@ impl TradeExecutor for GenericTradeExecutor {
            if is_buy { true } else { params.with_tip },
            params.gas_fee_strategy,
            params.use_core_affinity,
+            params.check_min_tip,
        )
        .await;
        let send_elapsed = send_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
@@ -156,10 +157,12 @@ impl TradeExecutor for GenericTradeExecutor {
                ),
                Err(e) => (false, vec![], Some(anyhow::anyhow!("{}", e))),
            };
-            let first_sig = sigs.first().copied();
-            let confirm_result = if let (Some(rpc), Some(sig)) = (params.rpc.as_ref(), first_sig) {
+            let confirm_result = if let Some(rpc) = params.rpc.as_ref() {
+                if sigs.is_empty() {
+                    (ok, sigs, err)
+                } else {
                let confirm_start = (params.log_enabled && crate::common::sdk_log::sdk_log_enabled()).then(Instant::now);
-                let poll_res = poll_transaction_confirmation(rpc, sig, true).await;
+                let poll_res = poll_any_transaction_confirmation(rpc, &sigs, true).await;
                let confirm_elapsed = confirm_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
                if params.log_enabled && crate::common::sdk_log::sdk_log_enabled() {
                    let dir = if is_buy { "Buy" } else { "Sell" };
@@ -171,6 +174,7 @@ impl TradeExecutor for GenericTradeExecutor {
                    Ok(_) => (true, sigs, None),
                    Err(e) => (false, sigs, Some(e)),
                }
+                }
            } else {
                (ok, sigs, err)
            };
@@ -71,6 +71,8 @@ pub struct SwapParams {
    pub log_enabled: bool,
    /// Whether to pin parallel submit tasks to cores (from TradeConfig.use_core_affinity).
    pub use_core_affinity: bool,
+    /// Whether to check minimum tip per SWQOS (from TradeConfig.check_min_tip). When false, skip filter for lower latency.
+    pub check_min_tip: bool,
    /// Optional event receive time in microseconds (same scale as sol-parser-sdk clock::now_micros). Used as timing start when log_enabled.
    pub grpc_recv_us: Option<i64>,
    /// Use exact SOL amount instructions (buy_exact_sol_in for PumpFun, buy_exact_quote_in for PumpSwap).
@@ -276,6 +278,7 @@ impl PumpSwapParams {
        base_token_program: Pubkey,
        quote_token_program: Pubkey,
        fee_recipient: Pubkey,
+        is_cashback_coin: bool,
    ) -> Self {
        let is_mayhem_mode = fee_recipient == MAYHEM_FEE_RECIPIENT_SWAP;
        Self {
@@ -291,10 +294,51 @@ impl PumpSwapParams {
            base_token_program,
            quote_token_program,
            is_mayhem_mode,
-            is_cashback_coin: false,
+            is_cashback_coin,
        }
    }

+    /// Fast-path constructor for building PumpSwap parameters directly from decoded
+    /// trade/event data and the accompanying instruction accounts, avoiding RPC
+    /// lookups and associated latency. Token program IDs should be sourced from
+    /// the instruction accounts themselves to respect Token Program vs Token-2022
+    /// differences.
+    ///
+    /// When building from event/parser (e.g. sol-parser-sdk), pass `is_cashback_coin`
+    /// from the event so that buy/sell instructions include the correct remaining
+    /// accounts for cashback.
+    pub fn from_trade(
+        pool: Pubkey,
+        base_mint: Pubkey,
+        quote_mint: Pubkey,
+        pool_base_token_account: Pubkey,
+        pool_quote_token_account: Pubkey,
+        pool_base_token_reserves: u64,
+        pool_quote_token_reserves: u64,
+        coin_creator_vault_ata: Pubkey,
+        coin_creator_vault_authority: Pubkey,
+        base_token_program: Pubkey,
+        quote_token_program: Pubkey,
+        fee_recipient: Pubkey,
+        is_cashback_coin: bool,
+    ) -> Self {
+        Self::new(
+            pool,
+            base_mint,
+            quote_mint,
+            pool_base_token_account,
+            pool_quote_token_account,
+            pool_base_token_reserves,
+            pool_quote_token_reserves,
+            coin_creator_vault_ata,
+            coin_creator_vault_authority,
+            base_token_program,
+            quote_token_program,
+            fee_recipient,
+            is_cashback_coin,
+        )
+    }
+
    pub async fn from_mint_by_rpc(
        rpc: &SolanaRpcClient,
        mint: &Pubkey,
Author	SHA1	Message	Date
Wood	48b9b17ab1	chore: release v3.5.5 Made-with: Cursor	2026-02-27 15:07:18 +08:00
Wood	0cd276d6cb	feat: Helius Sender SWQOS support and global check_min_tip option - Add Helius Sender client (helius.rs) with dual routing and swqos_only mode - Helius min tip: 0.0002 SOL default, 0.000005 SOL when swqos_only=true - Add TradeConfig.check_min_tip (default false) to skip min-tip validation for lower latency - Thread check_min_tip through SwapParams and execute_parallel; only call min_tip_sol when enabled - Add SWQOS_ENDPOINTS_HELIUS and HELIUS_TIP_ACCOUNTS in constants - Extend SwqosConfig/SwqosType for Helius; add Helius to get_endpoint and get_swqos_client - Update trading_client, shared_infrastructure and middleware_system examples Made-with: Cursor	2026-02-27 15:00:13 +08:00
Wood	82438479d3	chore: fix all examples to compile and expand workspace - Add pumpfun_copy_trading and pumpfun_sniper_trading to workspace members - Add grpc_recv_us field to all TradeBuyParams/TradeSellParams in examples - Switch address_lookup and nonce_cache to sol-parser-sdk, use event is_cashback_coin - Remove invalid rustls call from pumpfun examples for successful build - All 18 examples pass cargo check --workspace Made-with: Cursor	2026-02-27 13:44:22 +08:00
Wood	3d062279d9	chore: release v3.5.4 - Bump version to 3.5.4; update README and README_CN - Astralane: irisb binary API (no Base64), POST /irisb with query api-key&method; constants use /irisb endpoints; ping POST getHealth - BlockRazor: Send Transaction v2 (plain Base64 body, Content-Type text/plain, auth in URI only); ping POST /v2/health; use default_http_client_builder - SWQOS: all clients use default_http_client_builder (nextblock, temporal, zeroslot, astralane, lightspeed, jito, flashblock); remove unused Duration imports Made-with: Cursor	2026-02-27 02:30:52 +08:00
Wood	15e07e9130	docs: remove version release notes from README_CN, fix crates.io version to 3.5.3 Made-with: Cursor	2026-02-27 00:42:43 +08:00
Wood	6eaafde4fd	docs: remove version release notes from README Made-with: Cursor	2026-02-27 00:42:17 +08:00
Wood	0f37950adf	chore: release v3.5.3 (full release with IDL + instructions) - Bump version to 3.5.3; README What's new in 3.5.3 includes SWQoS + PumpFun/PumpSwap updates - Replaces incomplete v3.5.2 release Made-with: Cursor	2026-02-27 00:29:20 +08:00
Wood	dd4f42324e	feat: IDL updates, PumpFun/PumpSwap instruction and utils, fast_fn, release notes - idl: pump.json and pump_amm.json updates - instruction: pumpfun.rs, pumpswap.rs and utils (pumpfun, pumpswap) - common: fast_fn.rs - docs: release_notes_v3.5.0.md Made-with: Cursor	2026-02-27 00:27:36 +08:00
Wood	d0897b53d3	chore: release v3.5.2 - Bump version to 3.5.2 in Cargo.toml - Update README and README_CN with 3.5.2 and What's new in 3.5.2 Made-with: Cursor	2026-02-27 00:24:10 +08:00
Wood	e67a21df58	chore: bump README dependency examples to 3.5.1 Co-authored-by: Cursor <cursoragent@cursor.com>	2026-02-26 01:03:34 +08:00
Wood	147c6068d1	Release v3.5.1: bump version, update README Co-authored-by: Cursor <cursoragent@cursor.com>	2026-02-26 00:58:48 +08:00
Wood	6ce8ee582e	Merge pull request #79 from HelvetiCrypt/fix/confirm-all-signatures Fix: poll all channel signatures during confirmation	2026-02-26 00:52:02 +08:00
vibes	bcc6860bc3	Exclude examples requiring sol-parser-sdk from workspace These examples depend on a local path to sol-parser-sdk which is not available in the public repo, causing build failures for consumers. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-25 09:19:03 +00:00
vibes	1b7e3781c7	Fix confirmation polling to check all channel signatures In v3.5.0, confirmation was split out of execute_parallel into poll_transaction_confirmation, but it only polled sig[0]. When multi-channel submit is used, each channel produces a different signature and only one lands on-chain. If the landed sig is not sig[0], the poll times out after 15s and reports failure despite a successful on-chain transaction. Add poll_any_transaction_confirmation() that passes all signatures to get_signature_statuses in a single RPC call per poll, returning the first one that confirms. The executor now uses this instead of polling a single signature. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-25 09:16:50 +00:00