Polymarket Api

This is a solid reference for building anything that touches Polymarket's trading infrastructure. You get authentication patterns for the CLOB API, market data fetching from Gamma, WebSocket subscriptions for real-time updates, and actual order execution code with proper error handling. The Python examples are copy-paste ready, covering the full flow from initializing a client with API credentials to placing orders and calculating P&L. Honestly most useful for the specific endpoint documentation and the order type explanations, since Polymarket's own docs can be scattered. If you're building a trading bot or market analytics tool, this covers the repetitive integration work so you can focus on your actual strategy.

skills.sh installs: 970
GitHub stars: 26
last updated: Aug 21, 2026

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Install

$ npx -y skills add agentmc15/polymarket-trader --skill polymarket-api --agent claude-code

Installs into .claude/skills of the current project.

Files

Polymarket API Integration Skill

Overview

This skill provides comprehensive guidance for integrating with Polymarket's APIs and smart contracts.

API Endpoints

CLOB API (Central Limit Order Book)

Base URL: https://clob.polymarket.com

Authentication Levels

Level 0 (Public): Market data, orderbooks, prices
Level 1 (Signer): Create/derive API keys
Level 2 (Authenticated): Trading, orders, positions

Key Endpoints

GET  /markets              # List all markets
GET  /markets/{condition_id}  # Get specific market (condition_id is the
                               # MARKET key; token_id is the per-outcome
                               # BOOK key used by /price, /midpoint, /book
                               # below — the two are not interchangeable)
GET  /price?token_id=X     # Get current price
GET  /midpoint?token_id=X  # Get midpoint price
GET  /book?token_id=X      # Get orderbook
GET  /trades               # Get user trades
POST /order                # Place order
DELETE /order/{id}         # Cancel order
GET  /positions            # Get positions