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JamesANZMCP SERVER · OFFICIAL PROJECT

Prediction Market MCP

Search Polymarket, PredictIt and Kalshi for markets on a keyword and get their current odds back in one call — no API key, no account.

by JamesANZ ↗Economic, Alternative & Prediction-Market Data✓ Official

LABSCO SUMMARY

One tool, zero setup — its value is that three venues answer the same question at once.

The interesting output is the disagreement: the same event priced as a percentage on Polymarket, in dollars on PredictIt and inside a regulated US market on Kalshi, side by side, without three sets of credentials. It is a read-only lookup — there is no position, portfolio or order surface here, and the search is keyword matching rather than a structured query.

What it is

A small MCP server that queries three prediction-market platforms at once and returns the live markets matching a keyword. Polymarket comes back as percentage odds, PredictIt as dollar prices, and Kalshi as US-regulated markets, so a single question about an event returns whatever each venue is currently pricing.

What you get

  • Markets matching a keyword across all three platforms in one call — get-prediction-markets
  • One required parameter, keyword, capped at 50 characters, with examples such as "trump", "election" and "supreme court"
  • Polymarket data read from https://clob.polymarket.com/markets and PredictIt from https://www.predictit.org/api/marketdata/all/
  • No configuration step: no API keys, no account, nothing to authorize before the first call

Requirements

Nothing — no account, no key. Node.js 18+ and npm for the manual path: npm install -g prediction-markets-mcp, or clone, npm install, npm run build and run node build/index.js. Cursor has a one-click install link. The published package is prediction-markets-mcp 1.0.3 with a prediction-markets binary, built on the MCP SDK with superagent and zod, and runs on macOS, Windows and Linux.

Setup effort

One command — npm install -g prediction-markets-mcp

See installation options