Marathon Scout MCP Server

About Marathon Scout

Marathon Scout is a free, read-only MCP server for running races. It covers 2,000+ marathons, half marathons and ultramarathons in 120+ countries, and every date, registration status, results link and live tracker is checked against the race's own pages.

Tools:
- search_races: find races by name or place, distance (marathon, half_marathon, ultramarathon), country, region, a from/to date window and Boston-qualifier status. Returns up to 10 races (20 with a free API key), each with its next date and registration status.
- get_race: one race by slug, with every stored date, the registration status and when it was last checked, Boston-qualifier status, and links for registration, official results by year and live tracking.

Links are stable marathonscout.com/go URLs that open the race's current official page.

Auth: none. Remote server over Streamable HTTP at https://marathonscout.com/api/mcp, no sign-in. Without a key you get 20 calls an hour and 40 different races a day; a free API key from https://marathonscout.com/developers gives 200 calls a day.

Things to ask:
- "Find me a flat spring marathon on the East Coast that's a Boston qualifier."
- "Is registration open for the Chicago Marathon 2027?"
- "Where can I see results from the 2026 New York City Marathon?"

Setup guide: https://marathonscout.com/developers/mcp
Also in the official MCP Registry as com.marathonscout/races.

Marathon Scout tools (2)

Read from the live server on Nov 9, 2026. These are the tools your AI assistant can call once connected.

search_races

Find races for a runner: marathons, half marathons and ultras worldwide by name, city, region, country, distance, date window or Boston-qualifier status ("a spring marathon in Ohio", "halves near Denver in October"). Returns up to 10 races

get_race

One race by its Marathon Scout slug (from search_races): every stored date, the next edition's registration state and when it was checked, Boston-qualifier status, and links for registration, official results by year and live tracking (once

How to connect Marathon Scout to Claude, Cursor or VS Code

Marathon Scout runs as a hosted remote MCP server at https://marathonscout.com/api/mcp. Add that URL to your MCP client's config (Claude Code, Cursor, Windsurf or VS Code) and the tools appear immediately, no install required.

{
  "mcpServers": {
    "marathon-scout": {
      "url": "https://marathonscout.com/api/mcp"
    }
  }
}

Claude Code: claude mcp add --transport http marathon-scout https://marathonscout.com/api/mcp. VS Code's .vscode/mcp.json uses a servers key instead of mcpServers (see how). Servers that require OAuth or an API key will prompt on first use.