MCP Directory

How to add Prediction Markets MCP Server to Claude Desktop

Real-time prediction market odds and prices from Polymarket, PredictIt, and Kalshi. No API keys required. Paste the config into ~/Library/Application Support/Claude/claude_desktop_config.json and restart Claude Desktop.

Last updated June 14, 2026 · 35★ · stdio · no auth

Claude Desktop config for Prediction Markets MCP Server

npm install -g prediction-markets-mcp
{
  "mcpServers": {
    "prediction-markets-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "prediction-markets-mcp"
      ]
    }
  }
}

Setup steps

  1. 1Open Claude Desktop → Settings → Developer → Edit Config (this opens ~/Library/Application Support/Claude/claude_desktop_config.json).
  2. 2Paste the Prediction Markets MCP Server config below under the top-level "mcpServers" key.
  3. 3Fill in any placeholder secrets (API keys, paths) in the snippet.
  4. 4Save the file, then fully quit and reopen Claude Desktop.
  5. 5Open a chat and confirm Prediction Markets MCP Server's tools appear under the 🔌 tools menu.

Before you start

  • Node.js 18+
  • npm

What Prediction Markets MCP Server can do in Claude Desktop

get-prediction-markets

Search for prediction markets across multiple platforms by keyword. Parameter: keyword (string, required, max 50 characters), e.g. "trump", "election", "supreme court". Returns markets from Polymarket (percentage odds), PredictIt (dollar prices), and Kalshi (regulated US markets).

Prediction Markets MCP Server + Claude Desktop FAQ

Where is the Claude Desktop config file?

Claude Desktop reads MCP servers from ~/Library/Application Support/Claude/claude_desktop_config.json. Paste the Prediction Markets MCP Server config there under the "mcpServers" key and restart the client.

Do I need API keys to use this server?

No. The server works out of the box with zero configuration and requires no API keys.

Which prediction market platforms are supported?

Polymarket (percentage odds, crypto-based), PredictIt (dollar prices, traditional), and Kalshi (US-regulated markets).

How do I install it in Cursor?

Use the one-click 'Install in Cursor' deeplink in the README, or add the config manually with command 'npx' and args ['-y', 'prediction-markets-mcp'].

View repo Full Prediction Markets MCP Server page