rekko-mcp 0.6.0

Prediction market intelligence MCP server — Kalshi, Polymarket, Robinhood

rekko-mcp

Prediction market intelligence for AI coding assistants. 26+ MCP tools for market data, deep analysis, trading signals, arbitrage detection, portfolio management, and developer quickstart across Kalshi, Polymarket, and Robinhood.

Install

uvx rekko-mcp
# or
pip install rekko-mcp

Requires Python 3.11+ and a Rekko API key (free tier available).

Configure

Claude Code:

claude plugin install rekko

Or add to .mcp.json:

{
  "mcpServers": {
    "rekko": {
      "command": "uvx",
      "args": ["rekko-mcp"],
      "env": { "REKKO_API_KEY": "rk_free_your_key_here" }
    }
  }
}

Cursor — same .mcp.json format in .cursor/mcp.json.

What You Get

• Market data — browse, search, and get price history across Kalshi, Polymarket, and Robinhood
• Deep analysis — multi-stage AI research pipeline with probability estimates and causal decomposition (30-90s)
• Trading signals — edge assessment, confidence scoring, Kelly criterion position sizing
• Arbitrage — cross-platform spread detection between Kalshi and Polymarket
• Portfolio — shadow (paper) trading with P&L tracking and performance metrics
• Screening — batch score markets by volume, movement, and opportunity
• Webhooks — real-time alerts for price shifts and whale trades
• Quickstart — working code snippets for Python, curl, and MCP config to get started in under 5 minutes

Quick Examples

"What are the top prediction markets right now?"
"Analyze the Fed rate decision market on Kalshi"
"Find arbitrage opportunities above 3% spread"
"Screen the top 50 Kalshi markets and analyze anything actionable"
"Show my shadow portfolio performance"
"Show me a quickstart for Python"

Tutorials

• Prediction Market API Comparison — Kalshi vs Polymarket vs Robinhood APIs compared
• Build a Trading Bot with Python — End-to-end bot with screening, analysis, and signals
• Kalshi API Guide — RSA-PSS auth, endpoints, and adding AI analysis
• Polymarket API Guide — CLOB, py-clob-client, and AI-powered analysis
• MCP Trading Workflow — Natural language market research from your IDE
• Cross-Platform Arbitrage — Find price gaps between platforms
• Kelly Criterion Sizing — Optimal position sizing

Pricing

Tier	Per call	Includes
Free	$0.00	Calibration, health check
Listing	$0.01	Market data, price history
Insight	$0.10	Analysis, screening, resolution
Strategy	$2.00	Signals, portfolio sizing, consensus
Deep	$5.00	Arbitrage, correlation, webhooks

Free plan: 100 listing + 10 insight calls/month. Upgrade to Pro for higher limits.

Links

• rekko.ai — Home
• Documentation — Full API reference and tutorials
• OpenAPI Spec — Machine-readable API schema
• RapidAPI — Marketplace listing