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What is MCP?

Model Context Protocol (MCP) is an open standard that lets AI assistants — like Claude, Cursor, and Windsurf — connect to external data sources and tools. Instead of copying data into a prompt, the AI calls your tools directly and gets live results. With the EventGraph MCP server, any MCP-compatible AI can:
  • Search live prediction markets across Polymarket, Kalshi, Limitless, and OpinionTrade
  • Fetch market details, price history, and statistics
  • Scan for cross-platform arbitrage opportunities
  • Compare the same event across multiple platforms

Claude Desktop

Connect EventGraph to Claude for live market analysis in conversation

Cursor / Windsurf

Use prediction market data inside your AI coding environment

ChatGPT Actions

Build a Custom GPT that queries EventGraph data via Actions

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How it works

Your AI (Claude, Cursor...)
        │
        │  calls tool: search_markets("US election 2026")
        ▼
  EventGraph MCP Server
        │
        │  GET /api/v1/markets?query=US+election+2026
        │  X-API-Key: eg_live_your_key
        ▼
  EventGraph API  →  returns live market data
        │
        ▼
  AI receives structured data and responds to you
No prompt engineering. No stale data. The AI fetches real-time results on demand.

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Available tools

ToolDescriptionTier
search_marketsSearch & filter markets across all platformsFree
get_marketFull details on a specific marketFree
search_eventsSearch events (groups of related markets)Free
get_api_statusAPI health and data freshnessFree
find_arbitrageCross-platform spread opportunitiesPro
compare_marketsSide-by-side platform comparisonPro
get_market_historyHistorical price data for a marketPro

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What you need

  1. An EventGraph API key — get one free in 30 seconds
  2. An MCP-compatible client — Claude Desktop, Cursor, Windsurf, Continue, etc.
  3. Node.js 18+ — to run the MCP server locally

Get started in 5 minutes →

Set up the EventGraph MCP server and make your first AI-powered market query