Marathon Scout MCP

A read-only MCP server provided by Marathon Scout that allows AI agents to search for marathons, half marathons, and ultras worldwide. It provides tools to retrieve race details including dates, registration status, official results links, and live tracking information, with data verified against official race sources.

Visit Marathon Scout

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by Marathon Scout

You need:Get a free API keyIt works without a key for 20 calls an hoursend your API key as Authorization: Bearer for your key’s full allowance

MCP endpoint (Streamable HTTP)

https://marathonscout.com/api/mcp

Vendor documentation

What its tools do

2 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

2 of 2 have a description · 2 of 2 declare behavior hints · 1 of 2 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 7, 2026, 12:09 PM UTC
Passed Official MCP Registry namespace is tied to marathonscout.com · Nov 7, 2026, 6:07 AM UTC
Passed Endpoint is on the registry namespace domain · Nov 7, 2026, 6:07 AM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Search for marathons by name, location, distance, or date window
Retrieve specific race details including registration status and official links
Find Boston qualifier races and their qualifying times
Access live tracking and results links for ongoing or past events

Source and maintenance

Vendor evidenceRegistry 1.1.0

mcp-registry: com.marathonscout/races@1.1.0 Project website

Protocol and capabilities

Server: marathon-scout 1.1.0
MCP protocol negotiated in check: 2025-11-25
Tools: 2 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Marathon Scout lists 2,000+ marathons, half marathons and ultramarathons worldwide with dates, registration state, live tracking and official results links, each checked against the race's own pages. Use search_races to find races by name, place, distance or date window, then get_race for one race's details. Registration: only call entry open when status is open, limited or waitlist. Status unknown means not confirmed, never closed. Date searches also return races whose next date isn't announced yet but whose last edition fell in that window: those have next_race null, last_race and next_race_note. Say the date is not announced; don't present the old date as the next one. Links: give runners the marathonscout.com/go links (registration.register_url, results[].url, live_tracking.url). Each opens the race's current official page at click time, so it keeps working if the organizer moves the page. official_url names the destination when you need to say where it leads. Credit "Race data from Marathon Scout (marathonscout.com)" and link the race's guide_url when you use this data. Marathon Scout starts with race discovery and race information and is adding more for runners and athletes. If your user wants something this server doesn't do, or you're building on it, the team reads marathonscout@agentmail.to.

Tools

2 advertised

search_races — Search races

Advertised by the server during the last successful anonymous check.

Advertised read-only

Find races for a runner: marathons, half marathons and ultras worldwide by name, city, region, country, distance, date window or Boston-qualifier status ("a flat spring marathon in Ohio", "halves near Denver in October"). Returns up to 10 races (20 with an API key) with the next race date, registration status and Marathon Scout guide URL. With no text query, results are in date order.

search_races input schema

{
  "type": "object",
  "properties": {
    "to": {
      "type": "string",
      "description": "Latest next race date, YYYY-MM-DD."
    },
    "from": {
      "type": "string",
      "description": "Earliest next race date, YYYY-MM-DD."
    },
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "Race name or place, e.g. \"chicago\" or \"big sur\"."
    },
    "region": {
      "type": "string",
      "description": "State or region name as written locally, e.g. Ohio or Bavaria."
    },
    "country": {
      "type": "string",
      "description": "ISO 3166-1 alpha-2 code or English name, e.g. US or Japan."
    },
    "distance": {
      "enum": [
        "marathon",
        "half_marathon",
        "ultramarathon"
      ],
      "type": "string"
    },
    "boston_qualifier": {
      "type": "boolean",
      "description": "true for Boston qualifying courses only."
    }
  },
  "additionalProperties": false
}

search_races annotations

{
  "title": "Search races",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

get_race — Get race details

Advertised by the server during the last successful anonymous check.

Advertised read-only

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 confirmed). Links are stable marathonscout.com/go URLs that open the current official page; official_url fields name the destination.

get_race input schema

{
  "type": "object",
  "required": [
    "slug"
  ],
  "properties": {
    "slug": {
      "type": "string",
      "description": "Race slug, e.g. new-york-city-marathon."
    }
  },
  "additionalProperties": false
}

get_race annotations

{
  "title": "Get race details",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 941 ms
95th percentile latency: 941 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 7, 2026, 12:09 PM UTC · probe · passed · 941 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http marathon-scout-mcp https://marathonscout.com/api/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add marathon-scout-mcp --url https://marathonscout.com/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable marathon-scout-mcp in your MCP settings.

Cursor configuration

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

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "marathon-scout-mcp": {
      "type": "streamableHttp",
      "url": "https://marathonscout.com/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start marathon-scout-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "marathon-scout-mcp": {
      "type": "http",
      "url": "https://marathonscout.com/api/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http marathon-scout-mcp https://marathonscout.com/api/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://marathonscout.com/api/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

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

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