{
  "markdown": "# NegativeEV MCP server\n\nGrade any MLB, WNBA, PGA or ATP bet against thousands of play-by-play game simulations, from inside your AI client.\n\nWhether a bet is worth taking depends on tonight's lineups, today's injuries, and the weather at first pitch. None of that is in a model's weights. Asked cold, a model answers fluently and wrongly. This server returns a probability counted from simulations of the actual game: each leg's simulated win probability, the probability the sportsbook's price implies, and the edge between them.\n\nThis is a hosted remote server. There is nothing to build or run from this repo. The repo is the server's public face and carries a mirror of its registry record ([server.json](./server.json)).\n\n## Connect\n\nNo API key, no signup. Anonymous calls work immediately. The server speaks plain Streamable HTTP, so any MCP client can connect to `https://negativeev.com/mcp`.\n\n**Claude Code**\n\n```\nclaude mcp add --transport http negativeev https://negativeev.com/mcp\n```\n\n**Claude Desktop and claude.ai**\n\nSettings → Connectors → Add custom connector, then paste `https://negativeev.com/mcp` as the URL.\n\n**Cursor**\n\nAdd `{\"negativeev\": {\"url\": \"https://negativeev.com/mcp\"}}` under `mcpServers` in `~/.cursor/mcp.json`. Also listed on [cursor.directory](https://cursor.directory/plugins/negativeev-mcp-server).\n\n**VS Code (Copilot)**\n\n```\ncode --add-mcp '{\"name\":\"negativeev\",\"type\":\"http\",\"url\":\"https://negativeev.com/mcp\"}'\n```\n\n**ChatGPT**\n\nSettings → Security and login → enable Developer mode, then add `https://negativeev.com/mcp` as a connector at `chatgpt.com/plugins`. Developer mode is required for custom MCP connectors and is available on Pro, Plus, Business, Enterprise and Education accounts on the web.\n\nThere is also a Claude Code plugin that wraps this server: [jessejohnsohn/negativeev-bet-checker](https://github.com/jessejohnsohn/negativeev-bet-checker). Install with `claude plugin install negativeev-bet-checker`.\n\nOpening `https://negativeev.com/mcp` in a browser shows the same install steps.\n\n## Tools\n\n| Tool | What it does |\n|---|---|\n| `check_bet` | Grades a bet written as plain text, including a multi-leg parlay in one string. Returns each leg's simulated probability, the implied probability from the price, and the edge. It prices a bet you name. It does not search the board for value. |\n| `get_slate` | Says whether there is a checkable slate right now. Free. Spends no check. |\n| `get_usage` | Reports checks remaining and when the next frees up. Free. Spends no check. |\n\nCall `get_slate` first to confirm there is a checkable slate. `check_bet` spends one of the caller's checks only when the bet fully grades, and every result says so outright in its `status` and `check_spent` fields. A bet that comes back `ungraded` was understood. It is simply not on the simulated slate, so re-sending it with different wording returns the same answer. Check `get_slate` instead.\n\n## Limits and auth\n\nAnonymous calls share a per-device quota of 100 checks a day, on its own counter. Signing in makes checks unlimited, with a pace cap of 1000 checks an hour. Send a signed-in user's access token as `Authorization: Bearer`. Details at negativeev.com/auth.md. An invalid or expired token is rejected with a 401 rather than silently downgraded, so re-authenticate rather than retrying anonymously.\n\n## Details\n\n| | |\n|---|---|\n| Endpoint | `https://negativeev.com/mcp` |\n| Transport | Streamable HTTP (stateless) |\n| Sports | MLB, WNBA, PGA, ATP |\n| Registry name | `com.negativeev/bet-checker` |\n| Auth | Optional bearer token, details at negativeev.com/auth.md |\n| Server card | [`/.well-known/mcp/server-card.json`](https://negativeev.com/.well-known/mcp/server-card.json) |\n| Cost | Free |\n\nNegativeEV checks bets. It takes no bets and sells no picks.\n",
  "bytes": 3808,
  "sha": "dd2e41489fd385231065a931cee307c54e4cc96b459d630057cb5c2830bcd0da",
  "repo_slug": "jessejohnsohn/negativeev-mcp",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_com_negativeev_bet_checker_f7d362f8/readme"
}