MCP 服务器

Polymarket MCP Server

MCP server for Polymarket prediction markets, enabling search, market details, pricing, and bet analysis through 6 tools, with optional authenticated trading via API key.

README

Polymarket MCP Server

MCP server for Polymarket prediction markets — powered by the official polymarket-us TypeScript SDK.

Features

6 MCP tools for reading market data, searching, and analyzing bets
Public data — no API key needed for reading markets
Trading ready — supports authenticated endpoints with API key
Dual mode — runs as stdio MCP (DuckHive/OpenClaw) or HTTP server

Installation

cd polymarket-mcp
npm install

DuckHive / OpenClaw Setup

Add to ~/.duckhive.json:

{
  "mcpServers": {
    "polymarket": {
      "command": "node",
      "args": ["/path/to/polymarket-mcp.mjs"]
    }
  }
}

For trading (optional), add your API key:

{
  "mcpServers": {
    "polymarket": {
      "command": "node",
      "args": ["/path/to/polymarket-mcp.mjs"],
      "env": {
        "POLYMARKET_KEY_ID": "your_key_id",
        "POLYMARKET_SECRET_KEY": "your_secret_key"
      }
    }
  }
}

Get your API key at: https://app.polymarket.com/api-keys

Tools

Tool	Description
`search_polymarket`	Search markets by keyword
`get_polymarket_market`	Full market details by slug
`get_polymarket_trending`	Trending events by volume
`get_polymarket_price`	Current odds + best bid/ask
`get_polymarket_bet_analysis`	Odds, profit calc, vig, value rating
`get_polymarket_events`	Browse events by category

HTTP Mode (testing)

node polymarket-mcp.mjs --http
curl http://localhost:3457/health

Known 2026 Midterm Slugs

Market	Slug
Senate GOP win	`paccc-usse-midterms-2026-11-03-rep`
Senate Democrat win	`paccc-usse-midterms-2026-11-03-dem`
House Democrat win	`paccc-usho-midterms-2026-11-03-dem`
House GOP win	`paccc-usho-midterms-2026-11-03-rep`