commit 91ee44ae113e958affd20cd505c6e9d9d6100e0b
Author: Suhail Kakar <suhail@polymarket.com>
Date:   Thu Feb 19 21:29:35 2026 +0530

    add skills

diff --git a/README.md b/README.md
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+# Polymarket Integration Skill
+
+Agent skill for building on Polymarket — the world's largest prediction market. Gives agents the knowledge to authenticate, place orders, read markets, stream real-time data, manage positions, bridge assets across chains, and execute gasless transactions.
+
+## What's Included
+
+```
+web3-polymarket/
+├── SKILL.md              # Entry point — quick reference, client setup, core patterns
+├── README.md             # This file
+├── authentication.md     # L1/L2 auth, builder headers, credential lifecycle
+├── order-patterns.md     # Order types, tick sizes, cancel, heartbeat, errors
+├── market-data.md        # Gamma API, Data API, CLOB orderbook, subgraph
+├── websocket.md          # Market/user/sports channels, subscribe, heartbeat
+├── ctf-operations.md     # Split, merge, redeem, negative risk, token IDs
+├── bridge.md             # Deposits, withdrawals, supported chains/tokens
+└── gasless.md            # Relayer client, wallet deployment, builder setup
+```
+
+## How It Works
+
+The skill uses **progressive disclosure** to stay efficient with context:
+
+1. **SKILL.md loads first** — contains API endpoints, contract addresses, client setup, and core code patterns. Enough for most tasks.
+2. **Reference files load on demand** — when a task needs deeper detail (e.g., full error code list, bridge chain support, WebSocket event schemas), the agent reads the relevant file.
+
+This keeps the initial context small (~200 lines) while giving access to ~1,700 lines of detailed reference material when needed.
+
+## When Agents Use This Skill
+
+An agent activates this skill when a user asks about:
+
+- **Authentication** — API keys, EIP-712 signing, HMAC-SHA256, builder credentials
+- **Trading** — placing limit/market orders (GTC, GTD, FOK, FAK), batch orders, cancellation, heartbeat keepalive
+- **Market data** — fetching events/markets from Gamma API, reading orderbook prices/spreads/midpoints, price history
+- **Real-time data** — WebSocket subscriptions for orderbook updates, trade notifications, sports scores
+- **Token operations** — splitting USDC.e into Yes/No tokens, merging, redeeming after resolution
+- **Bridging** — depositing from 15+ chains, withdrawing, checking status
+- **Gasless transactions** — relayer client for gas-free onchain operations
+- **Negative risk** — multi-outcome markets, token conversion, augmented neg risk
+
+## Quick Start for Humans
+
+If you're a developer reading this directly (not an agent), here's the fastest path:
+
+### 1. Install the SDK
+
+```bash
+# TypeScript
+npm install @polymarket/clob-client ethers@5.8.0
+
+# Python
+pip install py-clob-client
+```
+
+### 2. Get API Credentials
+
+```typescript
+import { ClobClient } from "@polymarket/clob-client";
+import { Wallet } from "ethers";
+
+const client = new ClobClient(
+  "https://clob.polymarket.com",
+  137,
+  new Wallet(process.env.PRIVATE_KEY)
+);
+const creds = await client.createOrDeriveApiKey();
+```
+
+### 3. Place an Order
+
+```typescript
+const tradingClient = new ClobClient(
+  "https://clob.polymarket.com",
+  137,
+  signer,
+  creds,
+  2,              // GNOSIS_SAFE (most common)
+  "FUNDER_ADDR"   // from polymarket.com/settings
+);
+
+const response = await tradingClient.createAndPostOrder(
+  { tokenID: "TOKEN_ID", price: 0.50, size: 10, side: "BUY" },
+  { tickSize: "0.01", negRisk: false },
+  "GTC"
+);
+```
+
+## Key Concepts
+
+| Concept | Description |
+|---------|-------------|
+| **USDC.e** | Bridged USDC on Polygon — the collateral token for all markets |
+| **Condition ID** | Identifies a market (used in API as `market` or `conditionID`) |
+| **Token ID** | Identifies a specific outcome token (Yes or No) within a market |
+| **Funder** | The proxy wallet address that holds funds — find at polymarket.com/settings |
+| **Signature Type** | `0` = EOA, `1` = POLY_PROXY (Magic Link), `2` = GNOSIS_SAFE (most common) |
+| **Neg Risk** | Multi-outcome markets where outcomes are linked — set `negRisk: true` in order options |
+| **Tick Size** | Minimum price increment for a market — must match or orders are rejected |
+
+## API Endpoints
+
+| API | Base URL | Auth Required |
+|-----|----------|---------------|
+| CLOB | `https://clob.polymarket.com` | L2 headers for trades, none for reads |
+| Gamma | `https://gamma-api.polymarket.com` | None |
+| Data | `https://data-api.polymarket.com` | None |
+| Bridge | `https://bridge.polymarket.com` | None |
+| Relayer | `https://relayer-v2.polymarket.com/` | Builder headers |
+| WS Market | `wss://ws-subscriptions-clob.polymarket.com/ws/market` | None |
+| WS User | `wss://ws-subscriptions-clob.polymarket.com/ws/user` | API creds in message |
+| WS Sports | `wss://sports-api.polymarket.com/ws` | None |
+
+## Contract Addresses (Polygon)
+
+| Contract | Address |
+|----------|---------|
+| USDC.e (Bridged USDC) | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` |
+| CTF | `0x4D97DCd97eC945f40cF65F87097ACe5EA0476045` |
+| CTF Exchange | `0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E` |
+| Neg Risk CTF Exchange | `0xC5d563A36AE78145C45a50134d48A1215220f80a` |
+| Neg Risk Adapter | `0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296` |
+
+## File Guide
+
+| File | Read when you need to... |
+|------|--------------------------|
+| [SKILL.md](SKILL.md) | Get started — has everything for basic integration |
+| [authentication.md](authentication.md) | Understand L1/L2 auth flow, builder headers, or troubleshoot credential issues |
+| [order-patterns.md](order-patterns.md) | Use advanced order types (GTD, post-only, batch), handle errors, or implement heartbeat |
+| [market-data.md](market-data.md) | Query markets by slug/tag, paginate results, use subgraph, or estimate fill prices |
+| [websocket.md](websocket.md) | Stream real-time orderbook updates, trade notifications, or sports scores |
+| [ctf-operations.md](ctf-operations.md) | Split/merge/redeem tokens, work with neg risk markets, or compute token IDs |
+| [bridge.md](bridge.md) | Deposit from other chains, withdraw, check supported assets, or track transaction status |
+| [gasless.md](gasless.md) | Set up gas-free transactions via the relayer, deploy wallets, or configure builder credentials |
+
+## SDKs
+
+- **TypeScript**: [@polymarket/clob-client](https://github.com/Polymarket/clob-client)
+- **Python**: [py-clob-client](https://github.com/Polymarket/py-clob-client)
+- **Rust**: [rs-clob-client](https://github.com/Polymarket/rs-clob-client)
+- **Builder Relayer (TS)**: [@polymarket/builder-relayer-client](https://github.com/Polymarket/builder-relayer-client)
+- **Builder Relayer (Python)**: [py-builder-relayer-client](https://github.com/Polymarket/py-builder-relayer-client)
+- **Builder Signing (TS)**: [@polymarket/builder-signing-sdk](https://github.com/Polymarket/builder-signing-sdk)
+- **Builder Signing (Python)**: [py-builder-signing-sdk](https://github.com/Polymarket/py-builder-signing-sdk)
diff --git a/SKILL.md b/SKILL.md
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+---
+name: web3-polymarket
+description: Polymarket integration for prediction market trading on Polygon. Covers authentication (L1 EIP-712, L2 HMAC-SHA256, builder headers), order placement (GTC/GTD/FOK/FAK, batch, post-only, heartbeat), market data (Gamma API, Data API, orderbook, subgraph), WebSocket streaming (market/user/sports channels), CTF operations (split, merge, redeem, negative risk), bridge (deposits, withdrawals, multi-chain), and gasless relayer transactions. Use when building AI agents, autonomous market makers, prediction market UIs, or any application integrating with Polymarket on Polygon.
+compatibility: Requires network access to Polymarket APIs (clob.polymarket.com, gamma-api.polymarket.com) and Polygon RPC
+---
+
+# Polymarket Skill
+
+## When to use this skill
+
+Use this skill when the user asks about or needs to build:
+- Polymarket API authentication (L1/L2, API keys, HMAC signing)
+- Placing or managing orders (limit, market, GTC, GTD, FOK, FAK, batch, cancel)
+- Reading orderbook data (prices, spreads, midpoints, depth)
+- Market data fetching (events, markets, by slug, by tag, pagination)
+- WebSocket subscriptions (market channel, user channel, sports)
+- CTF operations (split, merge, redeem positions)
+- Negative risk markets (multi-outcome, conversion, augmented neg risk)
+- Bridge operations (deposits, withdrawals, multi-chain)
+- Gasless transactions (relayer client, order attribution)
+- Builder program integration (order attribution, API keys, tiers)
+- Polymarket SDK usage (TypeScript @polymarket/clob-client, Python py-clob-client)
+
+## API Configuration
+
+| API | Base URL | Auth | Purpose |
+|-----|----------|------|---------|
+| CLOB | `https://clob.polymarket.com` | L2 for trade endpoints | Orderbook, prices, order submission |
+| Gamma / Data | `https://gamma-api.polymarket.com` | None | Events, markets, search |
+| Data API | `https://data-api.polymarket.com` | None | Trades, positions, user data |
+| WebSocket (Market) | `wss://ws-subscriptions-clob.polymarket.com/ws/market` | None | Real-time orderbook |
+| WebSocket (User) | `wss://ws-subscriptions-clob.polymarket.com/ws/user` | API creds in message | Trade/order updates |
+| WebSocket (Sports) | `wss://sports-api.polymarket.com/ws` | None | Live scores |
+| Relayer | `https://relayer-v2.polymarket.com/` | Builder headers | Gasless transactions |
+| Bridge | `https://bridge.polymarket.com` | None | Deposits/withdrawals |
+
+## Contract Addresses (Polygon)
+
+| Contract | Address |
+|----------|---------|
+| USDC (USDC.e) | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` |
+| CTF (Conditional Tokens) | `0x4D97DCd97eC945f40cF65F87097ACe5EA0476045` |
+| CTF Exchange | `0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E` |
+| Neg Risk CTF Exchange | `0xC5d563A36AE78145C45a50134d48A1215220f80a` |
+| Neg Risk Adapter | `0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296` |
+
+## Client Setup
+
+### TypeScript
+```typescript
+import { ClobClient, Side, OrderType } from "@polymarket/clob-client";
+import { Wallet } from "ethers"; // v5.8.0
+
+const HOST = "https://clob.polymarket.com";
+const CHAIN_ID = 137;
+const signer = new Wallet(process.env.PRIVATE_KEY);
+
+// Step 1: L1 — derive API credentials
+const tempClient = new ClobClient(HOST, CHAIN_ID, signer);
+const apiCreds = await tempClient.createOrDeriveApiKey();
+
+// Step 2: L2 — init trading client
+const client = new ClobClient(
+  HOST,
+  CHAIN_ID,
+  signer,
+  apiCreds,
+  2,                // signatureType: 0=EOA, 1=POLY_PROXY, 2=GNOSIS_SAFE
+  "FUNDER_ADDRESS"  // proxy wallet address from polymarket.com/settings
+);
+```
+
+### Python
+```python
+from py_clob_client.client import ClobClient
+import os
+
+host = "https://clob.polymarket.com"
+chain_id = 137
+pk = os.getenv("PRIVATE_KEY")
+
+# Step 1: L1 — derive API credentials
+temp_client = ClobClient(host, key=pk, chain_id=chain_id)
+api_creds = temp_client.create_or_derive_api_creds()
+
+# Step 2: L2 — init trading client
+client = ClobClient(
+    host,
+    key=pk,
+    chain_id=chain_id,
+    creds=api_creds,
+    signature_type=2,  # 0=EOA, 1=POLY_PROXY, 2=GNOSIS_SAFE
+    funder="FUNDER_ADDRESS",
+)
+```
+
+## Quick Reference: Order Types
+
+| Type | Behavior | Use Case |
+|------|----------|----------|
+| **GTC** | Rests on book until filled or cancelled | Default limit orders |
+| **GTD** | Active until expiration (UTC seconds). Min = `now + 60 + N` | Auto-expire before events |
+| **FOK** | Fill entirely immediately or cancel | All-or-nothing market orders |
+| **FAK** | Fill what's available, cancel rest | Partial-fill market orders |
+
+- FOK/FAK BUY: `amount` = dollar amount to spend
+- FOK/FAK SELL: `amount` = number of shares to sell
+- Post-only: GTC/GTD only — rejected if would cross spread
+
+## Quick Reference: Signature Types
+
+| Type | Value | Description |
+|------|-------|-------------|
+| EOA | `0` | Standard Ethereum wallet (MetaMask). Funder is the EOA address and will need POL for gas. |
+| POLY_PROXY | `1` | Custom proxy wallet for Magic Link email/Google users who exported PK from Polymarket.com. |
+| GNOSIS_SAFE | `2` | Gnosis Safe multisig proxy wallet (most common). Use for any new or returning user. |
+
+## Core Pattern: Place an Order
+
+### TypeScript
+```typescript
+const response = await client.createAndPostOrder(
+  {
+    tokenID: "TOKEN_ID",
+    price: 0.50,
+    size: 10,
+    side: Side.BUY,
+  },
+  {
+    tickSize: "0.01",  // from client.getTickSize(tokenID) or market object
+    negRisk: false,    // from client.getNegRisk(tokenID) or market object
+  },
+  OrderType.GTC
+);
+console.log(response.orderID, response.status);
+```
+
+### Python
+```python
+from py_clob_client.clob_types import OrderArgs, OrderType
+from py_clob_client.order_builder.constants import BUY
+
+response = client.create_and_post_order(
+    OrderArgs(token_id="TOKEN_ID", price=0.50, size=10, side=BUY),
+    options={"tick_size": "0.01", "neg_risk": False},
+    order_type=OrderType.GTC,
+)
+print(response["orderID"], response["status"])
+```
+
+## Core Pattern: Read Orderbook
+
+### TypeScript
+```typescript
+// No auth needed
+const readClient = new ClobClient("https://clob.polymarket.com", 137);
+const book = await readClient.getOrderBook("TOKEN_ID");
+console.log("Best bid:", book.bids[0], "Best ask:", book.asks[0]);
+
+const mid = await readClient.getMidpoint("TOKEN_ID");
+const spread = await readClient.getSpread("TOKEN_ID");
+```
+
+### Python
+```python
+read_client = ClobClient("https://clob.polymarket.com", chain_id=137)
+book = read_client.get_order_book("TOKEN_ID")
+mid = read_client.get_midpoint("TOKEN_ID")
+spread = read_client.get_spread("TOKEN_ID")
+```
+
+## Core Pattern: WebSocket Subscribe
+
+```typescript
+const ws = new WebSocket("wss://ws-subscriptions-clob.polymarket.com/ws/market");
+
+ws.onopen = () => {
+  ws.send(JSON.stringify({
+    type: "market",
+    assets_ids: ["TOKEN_ID"],
+    custom_feature_enabled: true,
+  }));
+  // Send PING every 10s to keep alive
+  setInterval(() => ws.send("PING"), 10_000);
+};
+
+ws.onmessage = (event) => {
+  if (event.data === "PONG") return;
+  const msg = JSON.parse(event.data);
+  // msg.event_type: "book" | "price_change" | "last_trade_price" | "tick_size_change" | "best_bid_ask" | "new_market" | "market_resolved"
+};
+```
+
+## Reference files (load on demand)
+
+Only read these when the task requires deeper detail on a specific topic:
+
+- **Authentication** (L1/L2, builder headers, credential lifecycle): [authentication.md](authentication.md)
+- **Order patterns** (GTC/GTD/FOK/FAK, tick sizes, cancel, heartbeat, errors): [order-patterns.md](order-patterns.md)
+- **Market data** (Gamma API, Data API, CLOB orderbook, subgraph): [market-data.md](market-data.md)
+- **WebSocket** (market/user/sports channels, subscribe, heartbeat): [websocket.md](websocket.md)
+- **CTF operations** (split, merge, redeem, neg risk, token IDs): [ctf-operations.md](ctf-operations.md)
+- **Bridge** (deposits, withdrawals, supported chains/tokens, status): [bridge.md](bridge.md)
+- **Gasless transactions** (relayer client, wallet deployment, builder setup): [gasless.md](gasless.md)
diff --git a/authentication.md b/authentication.md
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+# Authentication
+
+Polymarket uses two-level auth: **L1** (EIP-712 private key signing) to create credentials, **L2** (HMAC-SHA256 API key signing) to authenticate requests. Builder program adds a separate set of **builder headers** for order attribution and relayer access.
+
+## L1 Authentication (Private Key)
+
+L1 proves wallet ownership via EIP-712 signature. Used to create or derive API credentials.
+
+### EIP-712 Domain
+
+```typescript
+const domain = {
+  name: "ClobAuthDomain",
+  version: "1",
+  chainId: 137,
+};
+
+const types = {
+  ClobAuth: [
+    { name: "address", type: "address" },
+    { name: "timestamp", type: "string" },
+    { name: "nonce", type: "uint256" },
+    { name: "message", type: "string" },
+  ],
+};
+
+const value = {
+  address: signingAddress,       // The signing address
+  timestamp: ts,                 // The CLOB API server timestamp
+  nonce: nonce,                  // The nonce used
+  message: "This message attests that I control the given wallet",
+};
+```
+
+### L1 Headers
+
+| Header | Description |
+|--------|-------------|
+| `POLY_ADDRESS` | Polygon signer address |
+| `POLY_SIGNATURE` | CLOB EIP-712 signature |
+| `POLY_TIMESTAMP` | Current UNIX timestamp |
+| `POLY_NONCE` | Nonce (default: 0) |
+
+### Create / Derive Credentials
+
+```typescript
+// TypeScript
+const client = new ClobClient("https://clob.polymarket.com", 137, signer);
+const creds = await client.createOrDeriveApiKey();
+// { apiKey: "uuid", secret: "base64...", passphrase: "string" }
+```
+
+```python
+# Python
+client = ClobClient("https://clob.polymarket.com", key=pk, chain_id=137)
+creds = client.create_or_derive_api_creds()
+```
+
+**REST endpoints:**
+- `POST {host}/auth/api-key` — create new credentials (requires L1 headers)
+- `GET {host}/auth/derive-api-key` — derive existing credentials (requires L1 headers)
+
+## L2 Authentication (API Key)
+
+L2 uses HMAC-SHA256 signatures from the API credentials. Required for all `/v1/trade/*` endpoints.
+
+### L2 Headers (all 5 required)
+
+| Header | Description |
+|--------|-------------|
+| `POLY_ADDRESS` | Polygon signer address |
+| `POLY_SIGNATURE` | HMAC signature for request |
+| `POLY_TIMESTAMP` | Current UNIX timestamp |
+| `POLY_API_KEY` | User's API `apiKey` value |
+| `POLY_PASSPHRASE` | User's API `passphrase` value |
+
+### Initialize Trading Client
+
+```typescript
+// TypeScript
+const client = new ClobClient(
+  "https://clob.polymarket.com",
+  137,
+  signer,
+  apiCreds,       // { apiKey, secret, passphrase }
+  2,              // signatureType
+  funderAddress   // proxy wallet address
+);
+```
+
+```python
+# Python
+client = ClobClient(
+    host="https://clob.polymarket.com",
+    chain_id=137,
+    key=pk,
+    creds=api_creds,
+    signature_type=2,
+    funder=funder_address,
+)
+```
+
+## Signature Types
+
+| Type | Value | When to Use |
+|------|-------|-------------|
+| EOA | `0` | Standard Ethereum wallet (MetaMask). Funder is the EOA address and will need POL to pay gas on transactions. |
+| POLY_PROXY | `1` | A custom proxy wallet only used with users who logged in via Magic Link email/Google. Using this requires the user to have exported their PK from Polymarket.com and imported into your app. |
+| GNOSIS_SAFE | `2` | Gnosis Safe multisig proxy wallet (most common). Use this for any new or returning user who does not fit the other 2 types. |
+
+The **funder** is the address holding funds. For proxy wallets, find it at polymarket.com/settings. Proxy wallets are auto-deployed on first Polymarket.com login.
+
+## Builder Headers
+
+Builder authentication is separate from L1/L2. Used for order attribution and relayer access.
+
+### Builder Headers (4 required)
+
+| Header | Description |
+|--------|-------------|
+| `POLY_BUILDER_API_KEY` | Builder API key |
+| `POLY_BUILDER_TIMESTAMP` | Unix timestamp |
+| `POLY_BUILDER_PASSPHRASE` | Builder passphrase |
+| `POLY_BUILDER_SIGNATURE` | HMAC-SHA256 of request |
+
+### Initialize Client with Builder Config
+
+```typescript
+// TypeScript — local signing
+import { BuilderConfig, BuilderApiKeyCreds } from "@polymarket/builder-signing-sdk";
+
+const builderCreds: BuilderApiKeyCreds = {
+  key: process.env.POLY_BUILDER_API_KEY!,
+  secret: process.env.POLY_BUILDER_SECRET!,
+  passphrase: process.env.POLY_BUILDER_PASSPHRASE!,
+};
+
+const builderConfig = new BuilderConfig({ localBuilderCreds: builderCreds });
+
+const client = new ClobClient(
+  "https://clob.polymarket.com",
+  137,
+  signer,
+  apiCreds,
+  2,
+  funderAddress,
+  undefined,
+  false,
+  builderConfig
+);
+// Orders automatically include builder headers
+```
+
+```python
+# Python — local signing
+from py_builder_signing_sdk import BuilderConfig, BuilderApiKeyCreds
+
+builder_config = BuilderConfig(
+    local_builder_creds=BuilderApiKeyCreds(
+        key=os.environ["POLY_BUILDER_API_KEY"],
+        secret=os.environ["POLY_BUILDER_SECRET"],
+        passphrase=os.environ["POLY_BUILDER_PASSPHRASE"],
+    )
+)
+
+client = ClobClient(
+    host="https://clob.polymarket.com",
+    chain_id=137,
+    key=pk,
+    creds=api_creds,
+    signature_type=2,
+    funder=funder_address,
+    builder_config=builder_config,
+)
+```
+
+### Remote Signing
+
+Keep builder credentials on a separate server. Client points to your signing endpoint:
+
+```typescript
+// TypeScript client
+const builderConfig = new BuilderConfig({
+  remoteBuilderConfig: { url: "https://your-server.com/sign" },
+});
+```
+
+```python
+# Python client
+from py_builder_signing_sdk import BuilderConfig, RemoteBuilderConfig
+
+builder_config = BuilderConfig(
+    remote_builder_config=RemoteBuilderConfig(url="https://your-server.com/sign")
+)
+```
+
+Your server receives `{ method, path, body }` and returns the 4 `POLY_BUILDER_*` headers.
+
+## Credential Lifecycle
+
+- **Create**: `client.createApiKey()` — generates new credentials with a nonce
+- **Derive**: `client.deriveApiKey(nonce)` — recovers existing credentials if you know the nonce
+- **Create or Derive**: `client.createOrDeriveApiKey()` — creates if first time, derives if existing
+- **Revoke builder key**: `client.revokeBuilderApiKey()` — invalidate compromised builder credentials
+
+Lost credentials + lost nonce = create fresh credentials. Save your nonce.
diff --git a/bridge.md b/bridge.md
new file mode 100644
index 0000000..db9c14d
--- /dev/null
+++ b/bridge.md
@@ -0,0 +1,137 @@
+# Bridge
+
+Polymarket uses **USDC.e** (Bridged USDC) on Polygon as collateral. The Bridge API handles deposits from and withdrawals to multiple chains.
+
+Base URL: `https://bridge.polymarket.com`
+
+## Deposit Flow
+
+1. `POST /deposit` with your Polymarket wallet address → get deposit addresses
+2. Verify token is supported via `/supported-assets`
+3. Send assets to the appropriate address for your source chain
+4. Assets are bridged and auto-swapped to USDC.e on Polygon
+5. Track status via `/status/{deposit_address}`
+
+```bash
+# Create deposit addresses
+curl -X POST https://bridge.polymarket.com/deposit \
+  -H "Content-Type: application/json" \
+  -d '{"address": "0xYOUR_POLYMARKET_WALLET"}'
+```
+
+Response includes three address types:
+
+| Address | Use For |
+|---------|---------|
+| `evm` | Ethereum, Arbitrum, Base, Optimism, and other EVM chains |
+| `svm` | Solana |
+| `btc` | Bitcoin |
+| `tvm` | Tron |
+
+Each address is unique to your wallet.
+
+## Supported Chains
+
+| Chain | Address Type | Min Deposit | Example Tokens |
+|-------|--------------|-------------|----------------|
+| Ethereum | EVM | $7 | ETH, USDC, USDT, WBTC, DAI, LINK, UNI, AAVE |
+| Polygon | EVM | $2 | POL, USDC, USDT, DAI, WETH, SAND |
+| Arbitrum | EVM | $2 | ETH, ARB, USDC, USDT, DAI, WBTC, USDe |
+| Base | EVM | $2 | ETH, USDC, USDT, DAI, cbBTC, AERO, USDS |
+| Optimism | EVM | $2 | ETH, OP, USDC, USDT, DAI, USDe |
+| BNB Smart Chain | EVM | $2 | BNB, USDC, USDT, DAI, ETH, BTCB, BUSD |
+| Solana | SVM | $2 | SOL, USDC, USDT, USDe, TRUMP |
+| Bitcoin | BTC | $9 | BTC |
+| Tron | TVM | $9 | USDT |
+| HyperEVM | EVM | $2 | HYPE, USDC, USDe, stHYPE, UBTC, UETH |
+| Abstract | EVM | $2 | ETH, USDC, USDT |
+| Monad | EVM | $2 | MON, USDC, USDT |
+| Ethereal | EVM | $2 | USDe, WUSDe |
+| Katana | EVM | $2 | AUSD |
+| Lighter | EVM | $2 | USDC |
+
+Always call `/supported-assets` for the current list — assets change over time.
+
+## Withdrawal Flow
+
+1. Check destination chain/token via `/supported-assets`
+2. Preview fees via `POST /quote`
+3. `POST /withdraw` with wallet address, destination chain, token, and recipient → get deposit addresses
+4. Send USDC.e from Polymarket wallet to the appropriate address
+5. Track status via `/status/{address}`
+
+```bash
+# Create withdrawal addresses
+curl -X POST https://bridge.polymarket.com/withdraw \
+  -H "Content-Type: application/json" \
+  -d '{
+    "address": "0xYOUR_POLYMARKET_WALLET",
+    "toChainId": "1",
+    "toTokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+    "recipientAddr": "0xDESTINATION_ADDRESS"
+  }'
+```
+
+**Do not pre-generate withdrawal addresses.** Generate them only when ready to execute.
+
+## Quote
+
+Preview fees and estimated output for deposits and withdrawals. Withdrawals are **instant** and **free** — Polymarket does not charge withdrawal fees.
+
+```bash
+POST https://bridge.polymarket.com/quote
+```
+
+## Status Tracking
+
+```bash
+# Use the deposit address (not your wallet address)
+curl https://bridge.polymarket.com/status/0xDEPOSIT_ADDRESS
+```
+
+### Transaction Statuses
+
+| Status | Terminal | Description |
+|--------|----------|-------------|
+| `DEPOSIT_DETECTED` | No | Funds detected on source chain, not yet processing |
+| `PROCESSING` | No | Being routed and swapped |
+| `ORIGIN_TX_CONFIRMED` | No | Source chain transaction confirmed |
+| `SUBMITTED` | No | Submitted to Polygon |
+| `COMPLETED` | Yes | Funds arrived — success |
+| `FAILED` | Yes | Error occurred |
+
+Poll every 10–30 seconds until `COMPLETED` or `FAILED`.
+
+### Response
+
+```json
+{
+  "transactions": [{
+    "fromChainId": "1",
+    "fromTokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+    "fromAmountBaseUnit": "1000000000",
+    "toChainId": "137",
+    "toTokenAddress": "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174",
+    "status": "COMPLETED",
+    "txHash": "0x...",
+    "createdTimeMs": 1697875200000
+  }]
+}
+```
+
+Empty `transactions` array = no deposits detected yet.
+
+## Recovery
+
+If you deposited the wrong token:
+- **Ethereum deposits**: https://recovery.polymarket.com/
+- **Polygon deposits**: https://matic-recovery.polymarket.com/
+
+Sending unsupported tokens may cause **irrecoverable loss**.
+
+## Caveats
+
+- **Withdrawals >$50,000**: break into smaller amounts to minimize slippage
+- **Uniswap pool exhaustion**: USDC.e → USDC swap goes through Uniswap v3 pool. If pool is exhausted, use smaller amounts or wait for rebalance
+- **Deposits below minimum**: will not be processed
+- **Supported assets change**: always check `/supported-assets` before depositing
diff --git a/ctf-operations.md b/ctf-operations.md
new file mode 100644
index 0000000..154cce3
--- /dev/null
+++ b/ctf-operations.md
@@ -0,0 +1,180 @@
+# CTF Operations
+
+The **Conditional Token Framework (CTF)** creates ERC1155 tokens for market outcomes. Three core operations: split, merge, redeem.
+
+## Token Model
+
+Every binary market has two tokens:
+
+| Token | Redeems for | Condition |
+|-------|-------------|-----------|
+| **Yes** | $1.00 USDC.e | Event occurs |
+| **No** | $1.00 USDC.e | Event does not occur |
+
+Every Yes/No pair is backed by exactly $1.00 USDC.e locked in the CTF contract.
+
+## Split
+
+Convert USDC.e into a full set of outcome tokens.
+
+```
+$100 USDC.e → 100 Yes tokens + 100 No tokens
+```
+
+### Prerequisites
+1. USDC.e balance on Polygon
+2. USDC.e approval for CTF contract
+3. Condition ID of the market (the condition must already be prepared on the CTF contract via `prepareCondition`)
+
+### Function: `splitPosition`
+
+| Parameter | Type | Value |
+|-----------|------|-------|
+| `collateralToken` | IERC20 | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` (USDC.e) |
+| `parentCollectionId` | bytes32 | `0x0000...0000` (32 zero bytes) |
+| `conditionId` | bytes32 | Market's condition ID |
+| `partition` | uint[] | `[1, 2]` for binary (Yes=1, No=2) |
+| `amount` | uint256 | Amount of USDC.e to split |
+
+## Merge
+
+Convert a full set of outcome tokens back to USDC.e. Inverse of split.
+
+```
+100 Yes tokens + 100 No tokens → $100 USDC.e
+```
+
+### Prerequisites
+1. Equal amounts of both Yes and No tokens
+2. Condition ID (the condition must already be prepared on the CTF contract via `prepareCondition`)
+3. Sufficient gas for the transaction
+
+### Function: `mergePositions`
+
+Same parameters as split. Burns one unit of each position per unit of collateral returned.
+
+## Redeem
+
+Exchange winning tokens for USDC.e after market resolution.
+
+```
+Market resolves YES:
+  100 Yes tokens → $100 USDC.e
+  100 No tokens  → $0
+```
+
+### Prerequisites
+1. Market must be resolved
+2. Hold winning tokens
+3. Know the condition ID
+
+### Function: `redeemPositions`
+
+| Parameter | Type | Value |
+|-----------|------|-------|
+| `collateralToken` | IERC20 | USDC.e address |
+| `parentCollectionId` | bytes32 | `0x0000...0000` |
+| `conditionId` | bytes32 | Market's condition ID |
+| `indexSets` | uint[] | `[1, 2]` — redeems both (only winner pays) |
+
+Redemption burns your **entire** token balance for the condition — no amount parameter. No deadline — winning tokens are always redeemable.
+
+### Payout Vectors
+
+| Outcome | Payout Vector | Redemption |
+|---------|---------------|------------|
+| Yes wins | `[1, 0]` | Yes = $1, No = $0 |
+| No wins | `[0, 1]` | Yes = $0, No = $1 |
+
+## Contract Addresses
+
+| Contract | Address | Purpose |
+|----------|---------|---------|
+| CTF | `0x4D97DCd97eC945f40cF65F87097ACe5EA0476045` | Token storage and operations |
+| USDC.e (Bridged USDC) | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` | Collateral token |
+| CTF Exchange | `0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E` | Standard market trading |
+| Neg Risk CTF Exchange | `0xC5d563A36AE78145C45a50134d48A1215220f80a` | Neg risk market trading |
+| Neg Risk Adapter | `0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296` | Neg risk conversions |
+
+## Approval Matrix
+
+Before trading or CTF operations, the funder must approve the relevant contracts:
+
+| Operation | Contract to Approve | Token |
+|-----------|-------------------|-------|
+| Buy order (standard) | CTF Exchange | USDC.e |
+| Sell order (standard) | CTF Exchange | Conditional tokens |
+| Buy order (neg risk) | Neg Risk CTF Exchange | USDC.e |
+| Sell order (neg risk) | Neg Risk CTF Exchange | Conditional tokens |
+| Split | CTF | USDC.e |
+| Neg risk conversion | Neg Risk Adapter | Conditional tokens |
+
+## Standard vs Neg Risk Markets
+
+| Feature | Standard Markets | Neg Risk Markets |
+|---------|-----------------|------------------|
+| CTF Contract | ConditionalTokens | ConditionalTokens |
+| Exchange Contract | CTF Exchange | Neg Risk CTF Exchange |
+| Multi-outcome | Independent markets | Linked via conversion |
+| `negRisk` flag | `false` | `true` |
+| Order option | `negRisk: false` | `negRisk: true` |
+
+## Negative Risk
+
+Multi-outcome events where only one outcome can win. A No token in any market can be **converted** into 1 Yes token in every other market.
+
+### Conversion Example
+
+Event: "Who wins?" with outcomes Trump, Harris, Other.
+
+| Outcome | Before | After Conversion |
+|---------|--------|------------------|
+| Trump | — | 1 Yes |
+| Harris | — | 1 Yes |
+| Other | 1 No | — |
+
+Conversion is atomic through the Neg Risk Adapter contract.
+
+### Identifying Neg Risk Markets
+
+```json
+{
+  "negRisk": true   // on event or market object from API
+}
+```
+
+When placing orders: pass `negRisk: true` in options.
+
+## Augmented Negative Risk
+
+For events where new outcomes emerge after trading begins (e.g., new candidate enters race).
+
+| Outcome Type | Description |
+|--------------|-------------|
+| Named outcomes | Known outcomes (e.g., "Trump", "Harris") |
+| Placeholder outcomes | Reserved slots clarified later (e.g., "Person A") |
+| Explicit Other | Catches any unnamed outcome |
+
+### Identifying
+
+```json
+{
+  "enableNegRisk": true,
+  "negRiskAugmented": true
+}
+```
+
+### Rules
+- Only trade on **named outcomes** — ignore placeholders
+- If correct outcome is not named at resolution, market resolves to "Other"
+- "Other" definition changes as placeholders are clarified — avoid trading it directly
+
+## Token ID Computation
+
+Token IDs are computed onchain in three steps:
+
+1. `getConditionId(oracle, questionId, outcomeSlotCount)` — oracle = UMA CTF Adapter, outcomeSlotCount = 2 for binary
+2. `getCollectionId(parentCollectionId, conditionId, indexSet)` — parentCollectionId = bytes32(0), indexSet = 1 (Yes) or 2 (No)
+3. `getPositionId(collateralToken, collectionId)` — combines USDC.e contract address on Polygon with collection
+
+In practice, get token IDs from the Markets API `tokens` array. Manual computation only needed for direct contract interaction.
diff --git a/gasless.md b/gasless.md
new file mode 100644
index 0000000..14b52f1
--- /dev/null
+++ b/gasless.md
@@ -0,0 +1,236 @@
+# Gasless Transactions
+
+Polymarket's **Relayer Client** enables gasless transactions. Instead of requiring users to hold POL, Polymarket's infrastructure pays gas fees. Users only need USDC.e to trade.
+
+Requires **Builder Program** membership. You need Builder API credentials.
+
+## How It Works
+
+1. Your app creates a transaction
+2. User signs it with their private key
+3. App sends to Polymarket's relayer
+4. Relayer submits onchain and pays gas
+5. Transaction executes from the user's wallet
+
+## What's Covered
+
+| Operation | Description |
+|-----------|-------------|
+| Wallet deployment | Deploy Safe or Proxy wallets for new users |
+| Token approvals | Approve contracts to spend USDC.e or outcome tokens |
+| CTF operations | Split, merge, redeem positions |
+| Transfers | Move tokens between addresses |
+
+## Installation
+
+```bash
+# TypeScript
+npm install @polymarket/builder-relayer-client @polymarket/builder-signing-sdk
+
+# Python
+pip install py-builder-relayer-client py-builder-signing-sdk
+```
+
+## Client Setup
+
+### TypeScript (Local Signing)
+
+```typescript
+import { createWalletClient, http, Hex } from "viem";
+import { privateKeyToAccount } from "viem/accounts";
+import { polygon } from "viem/chains";
+import { RelayClient } from "@polymarket/builder-relayer-client";
+import { BuilderConfig } from "@polymarket/builder-signing-sdk";
+
+const account = privateKeyToAccount(process.env.PRIVATE_KEY as Hex);
+const wallet = createWalletClient({
+  account,
+  chain: polygon,
+  transport: http(process.env.RPC_URL),
+});
+
+const builderConfig = new BuilderConfig({
+  localBuilderCreds: {
+    key: process.env.POLY_BUILDER_API_KEY!,
+    secret: process.env.POLY_BUILDER_SECRET!,
+    passphrase: process.env.POLY_BUILDER_PASSPHRASE!,
+  },
+});
+
+const client = new RelayClient(
+  "https://relayer-v2.polymarket.com/",
+  137,
+  wallet,
+  builderConfig
+);
+```
+
+### Python (Local Signing)
+
+```python
+import os
+from py_builder_relayer_client.client import RelayClient
+from py_builder_signing_sdk import BuilderConfig, BuilderApiKeyCreds
+
+builder_config = BuilderConfig(
+    local_builder_creds=BuilderApiKeyCreds(
+        key=os.getenv("POLY_BUILDER_API_KEY"),
+        secret=os.getenv("POLY_BUILDER_SECRET"),
+        passphrase=os.getenv("POLY_BUILDER_PASSPHRASE"),
+    )
+)
+
+client = RelayClient(
+    "https://relayer-v2.polymarket.com",
+    137,
+    os.getenv("PRIVATE_KEY"),
+    builder_config,
+)
+```
+
+### Remote Signing
+
+Keep credentials on your server. Client points to signing endpoint:
+
+```typescript
+// TypeScript
+const builderConfig = new BuilderConfig({
+  remoteBuilderConfig: { url: "https://your-server.com/sign" },
+});
+
+const client = new RelayClient(
+  "https://relayer-v2.polymarket.com/",
+  137,
+  wallet,
+  builderConfig
+);
+```
+
+```python
+# Python
+from py_builder_signing_sdk import BuilderConfig, RemoteBuilderConfig
+
+builder_config = BuilderConfig(
+    remote_builder_config=RemoteBuilderConfig(url="https://your-server.com/sign")
+)
+
+client = RelayClient("https://relayer-v2.polymarket.com", 137, pk, builder_config)
+```
+
+## Wallet Types
+
+| Type | Deployment | Best For |
+|------|------------|----------|
+| **Safe** | Call `deploy()` before first transaction | Most builder integrations |
+| **Proxy** | Auto-deploys on first transaction | Magic Link users |
+
+```typescript
+// TypeScript — Safe wallet
+import { RelayClient, RelayerTxType } from "@polymarket/builder-relayer-client";
+
+const client = new RelayClient(
+  "https://relayer-v2.polymarket.com/",
+  137,
+  wallet,
+  builderConfig,
+  RelayerTxType.SAFE
+);
+
+// Deploy before first transaction
+const response = await client.deploy();
+const result = await response.wait();
+console.log("Safe Address:", result?.proxyAddress);
+```
+
+```python
+# Python — Safe wallet
+response = client.deploy()
+result = response.wait()
+print("Safe Address:", result.get("proxyAddress"))
+```
+
+## Executing Transactions
+
+```typescript
+interface Transaction {
+  to: string;    // Target contract address
+  data: string;  // Encoded function call
+  value: string; // POL to send (usually "0")
+}
+
+const response = await client.execute(transactions, "Description");
+const result = await response.wait();
+```
+
+### Token Approval Example
+
+```typescript
+import { encodeFunctionData, maxUint256 } from "viem";
+
+const USDC = "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174";
+const CTF = "0x4D97DCd97eC945f40cF65F87097ACe5EA0476045";
+
+const approveTx = {
+  to: USDC,
+  data: encodeFunctionData({
+    abi: [{
+      name: "approve", type: "function",
+      inputs: [{ name: "spender", type: "address" }, { name: "amount", type: "uint256" }],
+      outputs: [{ type: "bool" }],
+    }],
+    functionName: "approve",
+    args: [CTF, maxUint256],
+  }),
+  value: "0",
+};
+
+const response = await client.execute([approveTx], "Approve USDC.e for CTF");
+await response.wait();
+```
+
+### Batch Transactions
+
+Execute multiple operations atomically in a single call:
+
+```typescript
+const response = await client.execute(
+  [approveTx, transferTx],
+  "Approve and transfer"
+);
+await response.wait();
+```
+
+## Transaction States
+
+| State | Terminal | Description |
+|-------|----------|-------------|
+| `STATE_NEW` | No | Received by relayer |
+| `STATE_EXECUTED` | No | Submitted onchain |
+| `STATE_MINED` | No | Included in a block |
+| `STATE_CONFIRMED` | Yes | Finalized successfully |
+| `STATE_FAILED` | Yes | Failed permanently |
+| `STATE_INVALID` | Yes | Rejected as invalid |
+
+## Builder Setup
+
+1. Go to polymarket.com/settings?tab=builder
+2. Create builder profile + generate API keys
+3. Implement builder signing in your CLOB client
+4. All orders automatically attributed to your builder account
+
+## Contract Addresses
+
+| Contract | Address | Approval Needed |
+|----------|---------|-----------------|
+| USDC.e (Bridged USDC) | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` | — |
+| CTF | `0x4D97DCd97eC945f40cF65F87097ACe5EA0476045` | USDC.e |
+| CTF Exchange | `0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E` | USDC.e, Tokens |
+| Neg Risk CTF Exchange | `0xC5d563A36AE78145C45a50134d48A1215220f80a` | USDC.e, Tokens |
+| Neg Risk Adapter | `0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296` | Tokens |
+
+## SDKs
+
+- [Builder Relayer Client (TypeScript)](https://github.com/Polymarket/builder-relayer-client)
+- [Builder Relayer Client (Python)](https://github.com/Polymarket/py-builder-relayer-client)
+- [Builder Signing SDK (TypeScript)](https://github.com/Polymarket/builder-signing-sdk)
+- [Builder Signing SDK (Python)](https://github.com/Polymarket/py-builder-signing-sdk)
diff --git a/market-data.md b/market-data.md
new file mode 100644
index 0000000..d8ed471
--- /dev/null
+++ b/market-data.md
@@ -0,0 +1,216 @@
+# Market Data
+
+Four sources for market data: **Gamma API** (events, markets, search), **Data API** (trades, positions, user data), **CLOB** (orderbook, prices), and **Subgraph** (onchain queries).
+
+## Gamma API
+
+Base URL: `https://gamma-api.polymarket.com` — no auth required.
+
+### Events Endpoint
+
+```bash
+# All active events
+GET https://gamma-api.polymarket.com/events?active=true&closed=false&limit=100
+
+# By slug (from polymarket.com/event/{slug})
+GET https://gamma-api.polymarket.com/events?slug=fed-decision-in-october
+
+# By tag
+GET https://gamma-api.polymarket.com/events?tag_id=100381&limit=10&active=true&closed=false
+
+# By series (sports)
+GET https://gamma-api.polymarket.com/events?series_id=10345&active=true&closed=false
+
+# Sorted by volume
+GET https://gamma-api.polymarket.com/events?active=true&closed=false&order=volume_24hr&ascending=false&limit=100
+```
+
+### Markets Endpoint
+
+```bash
+# By slug
+GET https://gamma-api.polymarket.com/markets?slug=fed-decision-in-october
+```
+
+### Sort Parameters
+
+| Parameter | Values |
+|-----------|--------|
+| `order` | `volume_24hr`, `volume`, `liquidity`, `start_date`, `end_date`, `competitive`, `closed_time` |
+| `ascending` | `true` / `false` (default: `false`) |
+| `active` | `true` / `false` |
+| `closed` | `true` / `false` |
+| `limit` | 1–500 (default: 20) |
+| `offset` | Pagination offset |
+
+### Pagination
+
+```bash
+# Page 1
+GET https://gamma-api.polymarket.com/events?active=true&closed=false&limit=50&offset=0
+
+# Page 2
+GET https://gamma-api.polymarket.com/events?active=true&closed=false&limit=50&offset=50
+```
+
+Response includes `has_more: true/false`. Increment offset by limit until `has_more` is `false`.
+
+### Tags & Sports
+
+```bash
+# Discover tags
+GET https://gamma-api.polymarket.com/tags
+
+# Sports metadata
+GET https://gamma-api.polymarket.com/sports
+```
+
+## Data API
+
+Base URL: `https://data-api.polymarket.com` — no auth required. Used for trades, positions, and user-specific data.
+
+## CLOB Orderbook
+
+Base URL: `https://clob.polymarket.com` — no auth for read endpoints.
+
+### Get Orderbook
+
+```typescript
+// TypeScript
+const client = new ClobClient("https://clob.polymarket.com", 137);
+const book = await client.getOrderBook("TOKEN_ID");
+// { bids: [{price, size}...], asks: [{price, size}...], tick_size, min_order_size, neg_risk }
+```
+
+```python
+# Python
+client = ClobClient("https://clob.polymarket.com", chain_id=137)
+book = client.get_order_book("TOKEN_ID")
+```
+
+```bash
+# REST
+curl "https://clob.polymarket.com/book?token_id=TOKEN_ID"
+```
+
+### Prices
+
+```typescript
+const buyPrice = await client.getPrice("TOKEN_ID", "BUY");   // best ask
+const sellPrice = await client.getPrice("TOKEN_ID", "SELL");  // best bid
+```
+
+```bash
+curl "https://clob.polymarket.com/price?token_id=TOKEN_ID&side=BUY"
+```
+
+### Midpoint
+
+```typescript
+const mid = await client.getMidpoint("TOKEN_ID");  // { mid: "0.50" }
+```
+
+If bid-ask spread > $0.10, Polymarket UI shows last traded price instead of midpoint.
+
+### Spread
+
+```typescript
+const spread = await client.getSpread("TOKEN_ID");  // { spread: "0.04" }
+```
+
+### Last Trade Price
+
+```typescript
+const last = await client.getLastTradePrice("TOKEN_ID");  // { price, side }
+```
+
+### Price History
+
+```typescript
+const history = await client.getPricesHistory({
+  market: "TOKEN_ID",
+  interval: PriceHistoryInterval.ONE_DAY,
+  fidelity: 60,  // data points every 60 minutes
+});
+// Each entry: { t: timestamp, p: price }
+```
+
+| Interval | Description |
+|----------|-------------|
+| `1h` | Last hour |
+| `6h` | Last 6 hours |
+| `1d` | Last day |
+| `1w` | Last week |
+| `1m` | Last month |
+| `max` | All available |
+
+Use `startTs`/`endTs` for absolute ranges (mutually exclusive with `interval`).
+
+### Estimate Fill Price
+
+Walk the orderbook to estimate slippage for a given order size:
+
+```typescript
+const price = await client.calculateMarketPrice(
+  "TOKEN_ID", Side.BUY, 500, OrderType.FOK
+);
+```
+
+### Batch Requests
+
+All orderbook queries have batch variants (up to 500 tokens):
+
+| Single | Batch | REST |
+|--------|-------|------|
+| `getOrderBook()` | `getOrderBooks()` | `POST /books` |
+| `getPrice()` | `getPrices()` | `POST /prices` |
+| `getMidpoint()` | `getMidpoints()` | `POST /midpoints` |
+| `getSpread()` | `getSpreads()` | `POST /spreads` |
+| `getLastTradePrice()` | `getLastTradesPrices()` | — |
+
+```typescript
+const prices = await client.getPrices([
+  { token_id: "TOKEN_A", side: Side.BUY },
+  { token_id: "TOKEN_B", side: Side.BUY },
+]);
+```
+
+## Key Market Fields
+
+| Field | Description |
+|-------|-------------|
+| `tokenID` / `asset_id` | ERC1155 token ID for an outcome |
+| `conditionID` / `market` | Condition ID — identifies the market |
+| `questionID` | Hash of UMA ancillary data |
+| `neg_risk` | `true` for multi-outcome events |
+| `minimum_tick_size` | Minimum price increment |
+| `enableOrderBook` | Whether orderbook is active |
+| `slug` | URL-friendly identifier |
+| `tokens` | Array of `{ token_id, outcome }` for both outcomes |
+
+## Subgraph (Onchain Data)
+
+GraphQL queries via Goldsky-hosted subgraphs:
+
+| Subgraph | Description |
+|----------|-------------|
+| Positions | User token balances |
+| Orders | Order book and trade events |
+| Activity | Splits, merges, redemptions |
+| Open Interest | Market and global OI |
+| PNL | User position P&L |
+
+```bash
+curl -X POST \
+  https://api.goldsky.com/api/public/project_cl6mb8i9h0003e201j6li0diw/subgraphs/orderbook-subgraph/0.0.1/gn \
+  -H "Content-Type: application/json" \
+  -d '{"query": "query { orderbooks { id tradesQuantity } }"}'
+```
+
+## Fetching Strategy
+
+1. **Specific market**: fetch by slug — `GET https://gamma-api.polymarket.com/events?slug=...`
+2. **Category browsing**: filter by tag — `GET https://gamma-api.polymarket.com/events?tag_id=...`
+3. **All active markets**: paginate events — `GET https://gamma-api.polymarket.com/events?active=true&closed=false`
+4. **Always include** `active=true&closed=false` unless you need historical data
+5. **Events > Markets**: events contain their markets, reducing API calls
diff --git a/order-patterns.md b/order-patterns.md
new file mode 100644
index 0000000..1fcf048
--- /dev/null
+++ b/order-patterns.md
@@ -0,0 +1,303 @@
+# Order Patterns
+
+All orders on Polymarket are expressed as limit orders. Market orders are limit orders with a marketable price that execute immediately.
+
+## Order Types
+
+| Type | Behavior | Use Case |
+|------|----------|----------|
+| **GTC** | Good-Til-Cancelled — rests on book until filled or cancelled | Default for limit orders |
+| **GTD** | Good-Til-Date — active until expiration timestamp (UTC seconds), unless filled or cancelled first | Auto-expire before known events |
+| **FOK** | Fill-Or-Kill — fill entirely immediately or cancel | All-or-nothing market orders |
+| **FAK** | Fill-And-Kill — fill what's available, cancel rest | Partial-fill market orders |
+
+## Tick Sizes
+
+Price must conform to the market's tick size or the order is rejected.
+
+| Tick Size | Precision | Example Prices |
+|-----------|-----------|----------------|
+| `0.1` | 1 decimal | 0.1, 0.2, 0.5 |
+| `0.01` | 2 decimals | 0.01, 0.50, 0.99 |
+| `0.001` | 3 decimals | 0.001, 0.500, 0.999 |
+| `0.0001` | 4 decimals | 0.0001, 0.5000, 0.9999 |
+
+Get tick size: `client.getTickSize(tokenID)` (TS) / `client.get_tick_size(token_id)` (Python). Also available as `minimum_tick_size` on market objects.
+
+## Limit Order (GTC)
+
+```typescript
+// TypeScript — one-step
+const response = await client.createAndPostOrder(
+  { tokenID: "TOKEN_ID", price: 0.50, size: 10, side: Side.BUY },
+  { tickSize: "0.01", negRisk: false },
+  OrderType.GTC
+);
+```
+
+```python
+# Python — one-step
+response = client.create_and_post_order(
+    OrderArgs(token_id="TOKEN_ID", price=0.50, size=10, side=BUY),
+    options={"tick_size": "0.01", "neg_risk": False},
+    order_type=OrderType.GTC,
+)
+```
+
+### Two-step (sign then submit)
+
+```typescript
+// TypeScript
+const signedOrder = await client.createOrder(
+  { tokenID: "TOKEN_ID", price: 0.50, size: 10, side: Side.BUY },
+  { tickSize: "0.01", negRisk: false }
+);
+const response = await client.postOrder(signedOrder, OrderType.GTC);
+```
+
+```python
+# Python
+signed_order = client.create_order(
+    OrderArgs(token_id="TOKEN_ID", price=0.50, size=10, side=BUY),
+    options={"tick_size": "0.01", "neg_risk": False},
+)
+response = client.post_order(signed_order, OrderType.GTC)
+```
+
+## Market Order (FOK / FAK)
+
+- **BUY**: `amount` = dollar amount to spend
+- **SELL**: `amount` = number of shares to sell
+- `price` = worst-price limit (slippage protection), not target execution price
+
+```typescript
+// TypeScript — FOK BUY: spend exactly $100 or cancel
+const buyOrder = await client.createMarketOrder(
+  { tokenID: "TOKEN_ID", side: Side.BUY, amount: 100, price: 0.50 },
+  { tickSize: "0.01", negRisk: false }
+);
+await client.postOrder(buyOrder, OrderType.FOK);
+
+// One-step convenience
+const response = await client.createAndPostMarketOrder(
+  { tokenID: "TOKEN_ID", side: Side.BUY, amount: 100, price: 0.50 },
+  { tickSize: "0.01", negRisk: false },
+  OrderType.FOK
+);
+```
+
+```python
+# Python — FOK BUY
+buy_order = client.create_market_order(
+    token_id="TOKEN_ID", side=BUY, amount=100, price=0.50,
+    options={"tick_size": "0.01", "neg_risk": False},
+)
+client.post_order(buy_order, OrderType.FOK)
+```
+
+## GTD Order (Expiring)
+
+Expiration = UTC seconds timestamp. Security threshold: add 60 seconds minimum.
+
+**Effective lifetime of N seconds: `now + 60 + N`**
+
+```typescript
+// TypeScript — expire in 1 hour
+const expiration = Math.floor(Date.now() / 1000) + 60 + 3600;
+
+const response = await client.createAndPostOrder(
+  { tokenID: "TOKEN_ID", price: 0.50, size: 10, side: Side.BUY, expiration },
+  { tickSize: "0.01", negRisk: false },
+  OrderType.GTD
+);
+```
+
+```python
+# Python — expire in 1 hour
+import time
+expiration = int(time.time()) + 60 + 3600
+
+response = client.create_and_post_order(
+    OrderArgs(token_id="TOKEN_ID", price=0.50, size=10, side=BUY, expiration=expiration),
+    options={"tick_size": "0.01", "neg_risk": False},
+    order_type=OrderType.GTD,
+)
+```
+
+## Post-Only Orders
+
+Guarantee maker status. If order would cross spread, it's rejected (not executed).
+
+```typescript
+// TypeScript
+const response = await client.postOrder(signedOrder, OrderType.GTC, true);
+```
+
+```python
+# Python
+response = client.post_order(signed_order, OrderType.GTC, post_only=True)
+```
+
+- Only works with GTC and GTD
+- Rejected if combined with FOK or FAK
+
+## Batch Orders
+
+Up to **15 orders** in a single request.
+
+```typescript
+// TypeScript
+const orders: PostOrdersArgs[] = [
+  {
+    order: await client.createOrder(
+      { tokenID: "TOKEN_ID", price: 0.48, side: Side.BUY, size: 500 },
+      { tickSize: "0.01", negRisk: false }
+    ),
+    orderType: OrderType.GTC,
+  },
+  {
+    order: await client.createOrder(
+      { tokenID: "TOKEN_ID", price: 0.52, side: Side.SELL, size: 500 },
+      { tickSize: "0.01", negRisk: false }
+    ),
+    orderType: OrderType.GTC,
+  },
+];
+const response = await client.postOrders(orders);
+```
+
+```python
+# Python
+response = client.post_orders([
+    PostOrdersArgs(
+        order=client.create_order(
+            OrderArgs(price=0.48, size=500, side=BUY, token_id="TOKEN_ID"),
+            options={"tick_size": "0.01", "neg_risk": False},
+        ),
+        orderType=OrderType.GTC,
+    ),
+    PostOrdersArgs(
+        order=client.create_order(
+            OrderArgs(price=0.52, size=500, side=SELL, token_id="TOKEN_ID"),
+            options={"tick_size": "0.01", "neg_risk": False},
+        ),
+        orderType=OrderType.GTC,
+    ),
+])
+```
+
+## Cancel Orders
+
+All cancel endpoints require L2 authentication.
+
+```typescript
+// TypeScript
+await client.cancelOrder("0xORDER_ID");                          // single
+await client.cancelOrders(["0xID_1", "0xID_2"]);                 // multiple
+await client.cancelAll();                                         // all orders
+await client.cancelMarketOrders({ market: "0xCONDITION_ID" });  // by market
+await client.cancelMarketOrders({                                 // by token
+  market: "0xCONDITION_ID",
+  asset_id: "TOKEN_ID",
+});
+```
+
+```python
+# Python
+client.cancel(order_id="0xORDER_ID")
+client.cancel_orders(["0xID_1", "0xID_2"])
+client.cancel_all()
+client.cancel_market_orders(
+    market="0xCONDITION_ID",
+    asset_id="TOKEN_ID",  # optional
+)
+```
+
+### Onchain Cancellation (fallback)
+
+If the API is unavailable, cancel directly on the Exchange contract by calling `cancelOrder(Order order)` onchain with the full signed order struct. Use the `CTFExchange` or `NegRiskCTFExchange` contract depending on the market type. See [Contract Addresses](/resources/contract-addresses) for addresses.
+
+## Heartbeat
+
+If a valid heartbeat is not received within **10 seconds** (with up to a 5-second buffer), **all of your open orders will be cancelled**.
+
+```typescript
+// TypeScript
+let heartbeatId = "";
+setInterval(async () => {
+  const resp = await client.postHeartbeat(heartbeatId);
+  heartbeatId = resp.heartbeat_id;
+}, 5000);
+```
+
+```python
+# Python
+import time
+heartbeat_id = ""
+while True:
+    resp = client.post_heartbeat(heartbeat_id)
+    heartbeat_id = resp["heartbeat_id"]
+    time.sleep(5)
+```
+
+- First request: use empty string for `heartbeat_id`
+- If you send an invalid or expired `heartbeat_id`, the server responds with a `400 Bad Request` and provides the correct `heartbeat_id` in the response
+
+## Error Codes
+
+| Error | Description |
+|-------|-------------|
+| `INVALID_ORDER_MIN_TICK_SIZE` | Price doesn't conform to the market's tick size |
+| `INVALID_ORDER_MIN_SIZE` | Order size is below the minimum threshold |
+| `INVALID_ORDER_DUPLICATED` | Identical order has already been placed |
+| `INVALID_ORDER_NOT_ENOUGH_BALANCE` | Funder doesn't have sufficient balance or allowance |
+| `INVALID_ORDER_EXPIRATION` | Expiration timestamp is in the past |
+| `INVALID_ORDER_ERROR` | System error while inserting order |
+| `INVALID_POST_ONLY_ORDER_TYPE` | Post-only flag used with a market order type (FOK/FAK) |
+| `INVALID_POST_ONLY_ORDER` | Post-only order would cross the book |
+| `EXECUTION_ERROR` | System error while executing trade |
+| `ORDER_DELAYED` | Order placement delayed due to market conditions |
+| `DELAYING_ORDER_ERROR` | System error while delaying order |
+| `FOK_ORDER_NOT_FILLED_ERROR` | FOK order couldn't be fully filled |
+| `MARKET_NOT_READY` | Market is not yet accepting orders |
+
+## Insert Statuses
+
+| Status | Description |
+|--------|-------------|
+| `matched` | Order placed and matched with a resting order |
+| `live` | Order placed and resting on the book |
+| `delayed` | Order is marketable but subject to a matching delay |
+| `unmatched` | Order is marketable but failed to delay — placement still successful |
+
+## Trade Statuses
+
+```
+MATCHED → MINED → CONFIRMED
+    ↓        ↑
+RETRYING ───┘
+    ↓
+  FAILED
+```
+
+| Status | Terminal | Description |
+|--------|----------|-------------|
+| `MATCHED` | No | Matched and sent to the executor service for onchain submission |
+| `MINED` | No | Observed as mined on the chain, no finality threshold yet |
+| `CONFIRMED` | Yes | Achieved strong probabilistic finality — trade successful |
+| `RETRYING` | No | Transaction failed (revert or reorg) — being retried by the operator |
+| `FAILED` | Yes | Trade failed permanently and is not being retried |
+
+## Prerequisites
+
+Before placing orders, the funder address must approve the Exchange contract:
+- **Buying**: the funder must have set a **USDC.e** allowance greater than or equal to the spending amount.
+- **Selling**: the funder must have set a **conditional token** allowance greater than or equal to the selling amount.
+
+Max order size = `balance - sum(openOrderSize - filledAmount)`
+
+## Sports Markets
+
+- Outstanding limit orders auto-cancelled when game begins
+- Marketable orders have 3-second placement delay
+- Game start times can shift — monitor accordingly
diff --git a/websocket.md b/websocket.md
new file mode 100644
index 0000000..44ea5da
--- /dev/null
+++ b/websocket.md
@@ -0,0 +1,228 @@
+# WebSocket
+
+Three channels for real-time data. Market and sports channels are public; user channel requires API credentials.
+
+## Channels
+
+| Channel | Endpoint | Auth |
+|---------|----------|------|
+| Market | `wss://ws-subscriptions-clob.polymarket.com/ws/market` | No |
+| User | `wss://ws-subscriptions-clob.polymarket.com/ws/user` | Yes |
+| Sports | `wss://sports-api.polymarket.com/ws` | No |
+
+## Market Channel
+
+Public. Subscribes by **asset IDs** (token IDs).
+
+### Subscribe
+
+```json
+{
+  "assets_ids": ["TOKEN_ID_1", "TOKEN_ID_2"],
+  "type": "market",
+  "custom_feature_enabled": true
+}
+```
+
+Set `custom_feature_enabled: true` to enable `best_bid_ask`, `new_market`, and `market_resolved` events.
+
+### Event Types
+
+| Event | Trigger | Key Fields |
+|-------|---------|------------|
+| `book` | On subscribe + when trade affects book | `bids[]`, `asks[]`, `hash`, `timestamp` |
+| `price_change` | Order placed or cancelled | `price_changes[]` with `price`, `size`, `side`, `best_bid`, `best_ask` |
+| `last_trade_price` | Trade executed | `price`, `side`, `size`, `fee_rate_bps` |
+| `tick_size_change` | Price hits >0.96 or <0.04 | `old_tick_size`, `new_tick_size` |
+| `best_bid_ask` | Top-of-book changes | `best_bid`, `best_ask`, `spread` |
+| `new_market` | Market created | `question`, `assets_ids`, `outcomes` |
+| `market_resolved` | Market resolved | `winning_asset_id`, `winning_outcome` |
+
+Events requiring `custom_feature_enabled: true`: `best_bid_ask`, `new_market`, `market_resolved`.
+
+**`tick_size_change` is critical for bots** — if tick size changes and you use the old one, orders are rejected.
+
+A `price_change` with `size: "0"` means the price level was removed from the book.
+
+### Example Messages
+
+```json
+// book
+{
+  "event_type": "book",
+  "asset_id": "TOKEN_ID",
+  "market": "0xCONDITION_ID",
+  "bids": [{"price": ".48", "size": "30"}],
+  "asks": [{"price": ".52", "size": "25"}],
+  "timestamp": "123456789000",
+  "hash": "0x..."
+}
+```
+
+```json
+// price_change
+{
+  "event_type": "price_change",
+  "market": "0xCONDITION_ID",
+  "price_changes": [{
+    "asset_id": "TOKEN_ID",
+    "price": "0.5",
+    "size": "200",
+    "side": "BUY",
+    "hash": "...",
+    "best_bid": "0.5",
+    "best_ask": "1"
+  }],
+  "timestamp": "..."
+}
+```
+
+## User Channel
+
+Authenticated. Subscribes by **condition IDs** (market IDs), not asset IDs. The `markets` field is optional — omit it to receive events for all markets.
+
+### Subscribe
+
+```json
+{
+  "auth": {
+    "apiKey": "your-api-key",
+    "secret": "your-api-secret",
+    "passphrase": "your-passphrase"
+  },
+  "markets": ["0xCONDITION_ID"],
+  "type": "user"
+}
+```
+
+### Event Types
+
+| Event | Trigger |
+|-------|---------|
+| `trade` | Trade lifecycle: MATCHED, MINED, CONFIRMED, RETRYING, FAILED |
+| `order` | Order lifecycle: PLACEMENT, UPDATE, CANCELLATION |
+
+### Trade Message
+
+```json
+{
+  "event_type": "trade",
+  "id": "trade-uuid",
+  "market": "0xCONDITION_ID",
+  "asset_id": "TOKEN_ID",
+  "side": "BUY",
+  "size": "10",
+  "price": "0.57",
+  "status": "MATCHED",
+  "maker_orders": [{ "order_id": "0x...", "matched_amount": "10", "price": "0.57" }],
+  "type": "TRADE"
+}
+```
+
+### Order Message
+
+```json
+{
+  "event_type": "order",
+  "id": "0xORDER_ID",
+  "market": "0xCONDITION_ID",
+  "asset_id": "TOKEN_ID",
+  "side": "SELL",
+  "price": "0.57",
+  "original_size": "10",
+  "size_matched": "0",
+  "type": "PLACEMENT"
+}
+```
+
+Order types: `PLACEMENT`, `UPDATE` (partial fill), `CANCELLATION`.
+
+## Sports Channel
+
+No subscription message needed. Connect and receive all active sports data.
+
+```json
+// sport_result
+{ "type": "sport_result", ... }  // Live scores, periods, status
+```
+
+## Dynamic Subscribe / Unsubscribe
+
+Modify subscriptions without reconnecting:
+
+```json
+// Market channel — subscribe to more
+{ "assets_ids": ["NEW_TOKEN_ID"], "operation": "subscribe", "custom_feature_enabled": true }
+
+// Market channel — unsubscribe
+{ "assets_ids": ["OLD_TOKEN_ID"], "operation": "unsubscribe" }
+
+// User channel — subscribe to more markets
+{ "markets": ["0xNEW_CONDITION_ID"], "operation": "subscribe" }
+```
+
+## Heartbeat
+
+### Market & User Channels
+Send `PING` every **10 seconds**. Server responds with `PONG`.
+
+```typescript
+const ws = new WebSocket("wss://ws-subscriptions-clob.polymarket.com/ws/market");
+
+ws.onopen = () => {
+  // Subscribe...
+  setInterval(() => ws.send("PING"), 10_000);
+};
+
+ws.onmessage = (event) => {
+  if (event.data === "PONG") return;
+  const msg = JSON.parse(event.data);
+  // handle msg.event_type
+};
+```
+
+### Sports Channel
+Server sends `ping` every 5 seconds. Respond with `pong` within 10 seconds or connection closes.
+
+## Full TypeScript Example
+
+```typescript
+const ws = new WebSocket("wss://ws-subscriptions-clob.polymarket.com/ws/market");
+
+ws.onopen = () => {
+  ws.send(JSON.stringify({
+    type: "market",
+    assets_ids: ["TOKEN_ID"],
+    custom_feature_enabled: true,
+  }));
+  setInterval(() => ws.send("PING"), 10_000);
+};
+
+ws.onmessage = (event) => {
+  if (event.data === "PONG") return;
+  const msg = JSON.parse(event.data);
+  switch (msg.event_type) {
+    case "book":
+      console.log("Book snapshot:", msg.bids.length, "bids", msg.asks.length, "asks");
+      break;
+    case "price_change":
+      for (const pc of msg.price_changes) {
+        console.log(`${pc.side} ${pc.size}@${pc.price} (best: ${pc.best_bid}/${pc.best_ask})`);
+      }
+      break;
+    case "last_trade_price":
+      console.log(`Trade: ${msg.side} ${msg.size}@${msg.price}`);
+      break;
+    case "tick_size_change":
+      console.log(`Tick: ${msg.old_tick_size} → ${msg.new_tick_size}`);
+      break;
+  }
+};
+```
+
+## Troubleshooting
+
+- **Connection closes immediately**: send subscription message right after open
+- **Drops after ~10s**: you're not sending PING heartbeats
+- **No messages**: verify asset IDs are correct and markets are active
+- **Auth failed (user channel)**: check API credentials haven't expired