@openoddsapi/mcp-server

Live sports odds as callable tools for Claude, Cursor, VS Code and any other MCP client. No SDK, no client code — the agent discovers the endpoints itself.

Covers UFC, boxing, tennis, NFL and golf across bookmakers and prediction markets (Kalshi, Polymarket, SX Bet), with per-bookmaker freshness.

Install

Get a key at openoddsapi.com — the free plan includes the MCP server.

Claude Code

claude mcp add openoddsapi -e OPENODDSAPI_KEY=$OPENODDSAPI_KEY -- npx -y @openoddsapi/mcp-server

Cursor / Claude Desktop / VS Code — add to your MCP config:

{
  "mcpServers": {
    "openoddsapi": {
      "command": "npx",
      "args": ["-y", "@openoddsapi/mcp-server"],
      "env": { "OPENODDSAPI_KEY": "oo_live_..." }
    }
  }
}

Tools

| Tool | What it does | |---|---| | list_sports | Sports covered, with live book and event counts | | get_odds | Every book's price for a sport, matched across sources | | compare_books | Best price per outcome, plus fair no-vig probabilities | | find_arbitrage | Guaranteed-profit opportunities, after fees, with stake ceilings | | get_events | Schedule without prices | | get_scores | Live and final results | | get_status | Plan, quota and remaining requests |

Try it

What are the current moneyline odds for the next UFC card, and which book has the best price on each fighter?

Are there any arbitrage opportunities in tennis right now? Only show ones that survive fees with at least $500 of headroom.

Which bookmakers are stale right now, and how far behind are they?

Notes that matter

• Prices are pre-fee. Each source carries a fee model; find_arbitrage applies it and reports margin_after_fees.
• Freshness is explicit. Every source has last_update and a stale flag. A stale price shown as live is the worst failure mode in this category.
• Arbitrage has a ceiling. max_stake comes from the binding leg's limit or depth. A 2% edge capped at $40 is not a trade.

Environment

| Variable | Required | Default | |---|---|---| | OPENODDSAPI_KEY | yes | — | | OPENODDSAPI_BASE_URL | no | https://api.openoddsapi.com/v1 |

MIT · Docs