Rekko MCP

Prediction market intelligence for AI coding assistants. Deep causal research, arbitrage detection, screening, and strategy signals for Kalshi, Polymarket, and Robinhood.

Install

# Zero-install via uvx
uvx rekko-mcp

# Or install from PyPI
pip install rekko-mcp

Claude Code

claude mcp add rekko -- uvx rekko-mcp

Or add to .mcp.json:

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

Cursor / Windsurf

Add to your MCP configuration with the same uvx rekko-mcp command and REKKO_API_KEY env var.

Setup

1. Get an API key at rekko.ai (free tier available)
2. Set your key: export REKKO_API_KEY=rk_free_...
3. Start using — tools appear as mcp__rekko__* automatically

Example prompts

• "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"

What you get

25 MCP tools integrated natively into your AI assistant:

Category	Tools
Market intelligence	list_markets, get_market, search_markets, get_market_history, get_resolution, get_execution_guidance
Screening	screen_markets, get_calibration
Deep research	analyze_market, check_analysis_status, get_analysis, list_analyses
Strategy	get_strategy, get_portfolio_strategy, get_consensus
Arbitrage	get_arbitrage, get_arbitrage_live
Correlation	get_correlation
Trading	place_shadow_trade, report_trade, get_portfolio, get_performance, check_resolutions
Data	run_scraper
Webhooks	create_webhook, list_webhooks, delete_webhook

Pricing

Tier	Price/call	What you get
Free	$0.00	Calibration metrics, health check
Listing	$0.01	Browse and search markets, price history
Insight	$0.10	Start analyses, screen markets, resolution intelligence
Strategy	$2.00	Strategy signals, portfolio-aware sizing, consensus
Deep	$5.00	Arbitrage scanning, correlation analysis, webhooks

Full pricing details at rekko.ai/docs/pricing.

Chaining with execution skills

Rekko provides the intelligence — chain with execution skills for trading:

• PolyClaw — execute trades on Polymarket
• Kalshi Trader — execute trades on Kalshi

Example flow: Rekko analysis → strategy signal → PolyClaw executes the trade.

Links

• rekko.ai/docs — Full documentation
• API Reference — Direct API access
• RapidAPI — Marketplace subscription
• Discord — Community