Stockfish MCP Server

A Stockfish server for the Model Context Protocol. This package allows a Large Language Model to play chess against the Stockfish engine.

Installation

This package is a pure Python wrapper and requires you to provide your own Stockfish binary.

1. Download Stockfish: Get the appropriate version for your system from the official Stockfish website.

2. Install the MCP Server: We recommend using uv to install the package. First, install uv. Then, run the following command to install stockfish-mcp as a globally available command-line tool in its own isolated environment:

   uv tool install stockfish-mcp

Usage

There are two ways to run the server:

1. Command Line

You can run the server directly, providing the path to your downloaded Stockfish executable.

uv tool run stockfish-mcp --stockfish-path C:\path\to\your\stockfish.exe

2. MCP Configuration

Alternatively, you can add it to your MCP settings.json file. This is useful for integrating with clients like the MCP VS Code extension.

{
    "mcpServers": {
        "stockfish": {
            "command": "uv",
            "args": ["tool", "run", "stockfish-mcp", "--stockfish-path", "C:\\path\\to\\your\\stockfish.exe"]
        }
    }
}

Example

An example of a game played against the Stockfish engine can be found in exampleGame.md.

Available Tools

• get_board_state(): Get the current board state.
• make_move(move_uci: str): Make a move (e.g., "e2e4").
• is_game_over(): Check if the game has ended.
• get_game_result(): Get the result if the game is over.
• reset_game(skill_level: int = 10): Start a new game.