financeanalytics-data

Prediction Markets (Polymarket, PredictIt, Kalshi)▌

by jamesanz

Real-time prediction market data from Polymarket, PredictIt & Kalshi—calculated odds, contract pricing, and event filter

Integrates with Polymarket, PredictIt, and Kalshi to provide real-time prediction market data with calculated odds, contract pricing, and event filtering for market analysis and trading research applications.

github stars

★ 33

GitHub npm

No API key needed3 major platforms includedReal-time market data

best for

/ Political and election analysis
/ Market research and trend analysis
/ Trading strategy development
/ Event probability assessment

capabilities

/ Search prediction markets by keyword
/ Get real-time odds and prices
/ Query multiple platforms simultaneously
/ Filter markets by topic
/ Access live contract pricing data

what it does

Fetches real-time prediction market data from Polymarket, PredictIt, and Kalshi, providing current odds, contract prices, and market search capabilities for analysis.

about

Prediction Markets (Polymarket, PredictIt, Kalshi) is a community-built MCP server published by jamesanz that provides AI assistants with tools and capabilities via the Model Context Protocol. Real-time prediction market data from Polymarket, PredictIt & Kalshi—calculated odds, contract pricing, and event filter It is categorized under finance, analytics data.

how to install

You can install Prediction Markets (Polymarket, PredictIt, Kalshi) in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.

license

MIT

Prediction Markets (Polymarket, PredictIt, Kalshi) is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.

readme

📊 Prediction Markets MCP Server

Real-time prediction market data in your AI workflow. Get current odds and prices from Polymarket, PredictIt, and Kalshi. No API keys required.

An MCP (Model Context Protocol) server that brings live prediction market data into AI coding environments like Cursor and Claude Desktop.

Why Use Prediction Markets MCP?

🆓 No API Keys – Works out of the box, zero configuration
📈 Multi-Platform – Polymarket, PredictIt, and Kalshi in one interface
⚡ Real-time Data – Current odds and prices from live markets
🎯 Easy Setup – One-click install in Cursor or simple manual setup
🔍 Keyword Search – Find markets by topic or keyword

Quick Start

Ready to explore prediction markets? Install in seconds:

Install in Cursor (Recommended):

🔗 Install in Cursor

Or install manually:

npm install -g prediction-markets-mcp
# Or from source:
git clone https://github.com/JamesANZ/prediction-markets-mcp.git
cd prediction-markets-mcp && npm install && npm run build

Features

`get-prediction-markets`

Search for prediction markets across multiple platforms by keyword.

Parameters:

keyword (string, required): Search term (max 50 characters)
- Examples: "trump", "election", "supreme court"

Returns:

Markets from Polymarket (percentage odds)
Markets from PredictIt (dollar prices)
Markets from Kalshi (regulated US markets)

Installation

Cursor (One-Click)

Click the install link above or use:

cursor://anysphere.cursor-deeplink/mcp/install?name=prediction-markets-mcp&config=eyJwcmVkaWN0aW9uLW1hcmtldHMtbWNwIjp7ImNvbW1hbmQiOiJucHgiLCJhcmdzIjpbIi15IiwicHJlZGljdGlvbi1tYXJrZXRzLW1jcCJdfX0=

Manual Installation

Requirements: Node.js 18+ and npm

# Clone and build
git clone https://github.com/JamesANZ/prediction-markets-mcp.git
cd prediction-markets-mcp
npm install
npm run build

# Run server
node build/index.js

Usage Examples

Search for Markets

Find prediction markets by keyword:

{
  "tool": "get-prediction-markets",
  "arguments": {
    "keyword": "trump"
  }
}

Search Election Markets

Find markets related to elections:

{
  "tool": "get-prediction-markets",
  "arguments": {
    "keyword": "election"
  }
}

Supported Platforms

Platform	Format	Description
Polymarket	Percentage odds	Crypto-based prediction markets
PredictIt	Dollar prices	Traditional prediction markets
Kalshi	Regulated	US-regulated prediction markets

Data Sources

Polymarket: https://clob.polymarket.com/markets
PredictIt: https://www.predictit.org/api/marketdata/all/
Kalshi: Regulated US prediction markets

Use Cases

Traders – Monitor odds and prices across platforms
Researchers – Analyze market sentiment and predictions
Developers – Build apps with prediction market data
Analysts – Track political and event probabilities

Technical Details

Built with: Node.js, TypeScript, MCP SDK
Dependencies: @modelcontextprotocol/sdk, superagent, zod
Platforms: macOS, Windows, Linux

Contributing

⭐ If this project helps you, please star it on GitHub! ⭐

Contributions welcome! Please open an issue or submit a pull request.

License

MIT License – see LICENSE file for details.

Support

If you find this project useful, consider supporting it:

⚡ Lightning Network

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₿ Bitcoin: bc1ptzvr93pn959xq4et6sqzpfnkk2args22ewv5u2th4ps7hshfaqrshe0xtp

Ξ Ethereum/EVM: 0x42ea529282DDE0AA87B42d9E83316eb23FE62c3f