speedrun-mcp

A Model Context Protocol server for speedrun.com. It lets an AI assistant query games, categories, leaderboards, world records, players and their personal bests — e.g. "What's the current Super Mario 64 16-star world record, and who holds it?"

Built on speedrun.com's official, public REST API. No account or API key required (the read endpoints are open); results are shaped into compact, model-friendly JSON (player ids resolved to names, durations formatted, subcategory variables labeled).

Tools

A typical flow: search_games → list_categories (and list_variables for subcategories) → get_leaderboard / get_world_record. Use list_platforms / list_regions when you need an id for the platform / region filters.

Related MCP server: MCP Chess Server

Install & run

Requires Python 3.10+.

# from PyPI (once published)
pipx install speedrun-mcp        # or: uv tool install speedrun-mcp

# from source
git clone https://github.com/williamcodes/speedrun-mcp
cd speedrun-mcp
pip install -e .

The server speaks MCP over stdio:

speedrun-mcp          # console script
python -m speedrun_mcp # equivalent

Use with Claude Desktop / Claude Code

Add to your MCP client config (e.g. claude_desktop_config.json):

{
  "mcpServers": {
    "speedrun": {
      "command": "speedrun-mcp"
    }
  }
}

If you installed from source into a virtualenv, point command at that interpreter, e.g. "command": "/path/to/.venv/bin/speedrun-mcp".

For Claude Code:

claude mcp add speedrun -- speedrun-mcp

Notes & limits

• Read-only. Submitting or moderating runs requires an authenticated speedrun.com session and is intentionally out of scope.

• Rate limit: speedrun.com allows 100 requests/minute per IP and responds with HTTP 420 when exceeded; the client surfaces a clear error if you hit it.

• Game and category arguments accept either an id (o1y9wo6q) or an abbreviation (sm64). For precise subcategory leaderboards (e.g. 16 Star), discover the variable/value ids with list_variables and pass variables={variable_id: value_id}.

• Errors are explanatory. Invalid ids/filters raise an error that includes speedrun.com's own message — e.g. passing a level to a full-game category returns "The selected category is for full-game runs, but a level was selected."

Output shape

• Times reflect the leaderboard's sort timing. When you pass timing (realtime / realtime_noloads / ingame), the reported time / time_seconds match that ranking, not the game's default timing.

• get_leaderboard returns returned_runs (the number of runs returned, bounded by top and ties — not the full board size) and a runs list with resolved player names, formatted times, and labeled subcategories.

• get_world_record returns world_record (the place-1 run, or null if the board is empty) plus tied (a list of any other runs sharing first place).

• get_user_personal_bests returns returned (how many came back, capped by limit) and total_available (the player's true PB count), plus the personal_bests list with game/category names and resolved players.

Development

pip install -e ".[dev]"
pytest -m "not network"   # unit tests (offline)
pytest                    # include live-API tests
ruff check .

License

MIT