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feat(examples): add 18-account buy / 16-17-account sell for 2026-04-28 upgrade
pump.fun program upgrade scheduled for 2026-04-28 16:00 UTC adds one new
mutable account (one of 8 fee recipients) at the end of buy/sell ixs,
after bonding-curve-v2. The new format is already accepted on mainnet
ahead of the cutover, so applying now keeps scripts working on both
sides of the upgrade.
Doc: github.com/pump-fun/pump-public-docs/blob/main/docs/BREAKING_FEE_RECIPIENT.md
Per file:
manual_buy.py — 18-account buy. Also fixes a pre-existing
listener crash on Address-Lookup-Table create
txs (skips them) and adds bool/OptionBool
handling to decode_create_instruction so
create_v2 doesn't raise on its trailing args.
manual_buy_cu_optimized.py — 18-account buy. Bumps the CU-optimization
account-data limit to 16MB (tested) — older
values trigger MaxLoadedAccountsDataSizeExceeded
on Token-2022/cashback coins. Same listener
ALT-skip and decoder bool fixes.
manual_buy_geyser.py — 18-account buy. Re-enables price calculation
and mayhem-mode-aware fee_recipient detection
(was scaffolded out for testing).
manual_sell.py — 16-account non-cashback / 17-account cashback
sell. Reads is_cashback_coin from BC byte 82
and inserts user_volume_accumulator before
bonding-curve-v2 when needed. TOKEN_MINT now
accepts argv[1] override.
Live-verified on mainnet:
buy manual_buy.py 3AVnLC3sdBD598cs3... + 3bWU9bB8U9aemA2BFhS2...
buy manual_buy_cu_optimized 2PfH5rHw62o3KkQ3N4z8...
sell manual_sell.py 3E7dyPBPBRe95BtPQXmb... + 5L4wWSzPV36m6XqXAswB...
All four show the expected 18 (buy) / 16 (sell non-cashback) account count
with one of the 8 BREAKING_FEE_RECIPIENTS as the trailing mutable account.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Anton Sauchyk
co-authored by
Claude Opus 4.7
Claude Opus 4.7
parent
9b4841890c
commit
c25e2edb57
@@ -3,6 +3,7 @@ import base64
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import hashlib
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import json
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import os
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import random
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import struct
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import base58
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@@ -43,6 +44,20 @@ SYSTEM_ASSOCIATED_TOKEN_ACCOUNT_PROGRAM = Pubkey.from_string(
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SOL = Pubkey.from_string("So11111111111111111111111111111111111111112")
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LAMPORTS_PER_SOL = 1_000_000_000
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# 8 breaking-upgrade fee recipients (pump.fun program upgrade 2026-04-28).
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# One must be appended (mutable) AFTER bonding-curve-v2 on every buy/sell.
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# Doc: github.com/pump-fun/pump-public-docs/blob/main/docs/BREAKING_FEE_RECIPIENT.md
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BREAKING_FEE_RECIPIENTS = [
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Pubkey.from_string("5YxQFdt3Tr9zJLvkFccqXVUwhdTWJQc1fFg2YPbxvxeD"),
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Pubkey.from_string("9M4giFFMxmFGXtc3feFzRai56WbBqehoSeRE5GK7gf7"),
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Pubkey.from_string("GXPFM2caqTtQYC2cJ5yJRi9VDkpsYZXzYdwYpGnLmtDL"),
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Pubkey.from_string("3BpXnfJaUTiwXnJNe7Ej1rcbzqTTQUvLShZaWazebsVR"),
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Pubkey.from_string("5cjcW9wExnJJiqgLjq7DEG75Pm6JBgE1hNv4B2vHXUW6"),
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Pubkey.from_string("EHAAiTxcdDwQ3U4bU6YcMsQGaekdzLS3B5SmYo46kJtL"),
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Pubkey.from_string("5eHhjP8JaYkz83CWwvGU2uMUXefd3AazWGx4gpcuEEYD"),
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Pubkey.from_string("A7hAgCzFw14fejgCp387JUJRMNyz4j89JKnhtKU8piqW"),
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]
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# RPC ENDPOINTS
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RPC_ENDPOINT = os.environ.get("SOLANA_NODE_RPC_ENDPOINT")
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RPC_WEBSOCKET = os.environ.get("SOLANA_NODE_WSS_ENDPOINT")
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@@ -295,6 +310,12 @@ async def buy_token(
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is_signer=False,
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is_writable=False,
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),
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# 18th account: breaking-upgrade fee recipient (mutable) — required from 2026-04-28
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AccountMeta(
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pubkey=random.choice(BREAKING_FEE_RECIPIENTS),
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is_signer=False,
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is_writable=True,
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),
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]
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discriminator = struct.pack("<Q", 16927863322537952870)
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@@ -359,16 +380,24 @@ def decode_create_instruction(ix_data, ix_def, accounts):
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offset = 8 # Skip 8-byte discriminator
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for arg in ix_def["args"]:
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if arg["type"] == "string":
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t = arg["type"]
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if t == "string":
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length = struct.unpack_from("<I", ix_data, offset)[0]
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offset += 4
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value = ix_data[offset : offset + length].decode("utf-8")
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offset += length
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elif arg["type"] == "pubkey":
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elif t == "pubkey":
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value = base58.b58encode(ix_data[offset : offset + 32]).decode("utf-8")
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offset += 32
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elif t == "bool":
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value = bool(ix_data[offset])
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offset += 1
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elif isinstance(t, dict) and "defined" in t:
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# OptionBool = struct { bool } = 1 byte
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value = bool(ix_data[offset])
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offset += 1
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else:
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raise ValueError(f"Unsupported type: {arg['type']}")
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raise ValueError(f"Unsupported type: {t}")
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args[arg["name"]] = value
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@@ -457,12 +486,14 @@ async def listen_for_create_transaction():
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for instr in idl["instructions"]
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if instr["name"] == instruction_name
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)
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# Skip txs that use Address Lookup Tables — their
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# instruction account indices reference ALT-loaded keys
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# not present in transaction.message.account_keys.
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static_keys = transaction.message.account_keys
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if any(idx >= len(static_keys) for idx in ix.accounts):
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continue
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account_keys = [
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str(
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transaction.message.account_keys[
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index
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]
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)
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str(static_keys[index])
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for index in ix.accounts
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]
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decoded_args = (
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