Polymarket MCP

Self-hosted MCP server for trading on Polymarket prediction markets.

This package provides an MCP (Model Context Protocol) server that enables AI agents to trade on Polymarket prediction markets via the Polygon network.

- Full Polymarket Trading- Buy/sell on any Polymarket market
- Polygon Wallet Management- Generate and manage wallets with Safe integration
- Gasless Transactions- Most operations use Polymarket's relayer (no MATIC needed)
- MCP Compatible- Works with Claude, Cursor, and any MCP client
- Self-Hostable- Run on Railway, Fly.io, or any Node.js host

git clone https://github.com/joinQuantish/polymarket-mcp cd polymarket-mcp npm install

# Generate ENCRYPTION_KEY (32 bytes = 64 hex chars) node -e "console.log(require('crypto').randomBytes(32).toString('hex'))" # Generate BOT_SIGNING_SECRET (for trusted bot auth) node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"

# Generate Prisma client npm run db:generate # Create tables npm run db:push

# Development npm run dev # Production npm run build npm start

The server exposes a JSON-RPC 2.0 endpoint at/mcp:

curl -X POST https://your-server.com/mcp \ -H "Content-Type: application/json" \ -H "x-api-key: YOUR_API_KEY" \ -d '{ "jsonrpc": "2.0", "method": "tools/call", "params": { "name": "get_balances", "arguments": {} }, "id": 1 }'

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