Schema | Stockfish MCP Server

Stockfish MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`STOCKFISH_PATH`	No	Path to the Stockfish binary.	engine/stockfish
`STOCKFISH_HASH_MB`	No	Transposition-table size (MB).	256
`STOCKFISH_THREADS`	No	Search threads.	min(4, ncpu)

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": true }
`logging`	{}
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }
`extensions`	{ "io.modelcontextprotocol/ui": {} }
`experimental`	{}

Functions exposed to the LLM to take actions

Name	Description
analyze_positionB	Analyze a chess position with Stockfish and return the evaluation and best lines.
get_best_moveA	Pick a move for the side to move, optionally at reduced strength.
evaluate_positionA	Quickly evaluate a position and return the score and best move. A lighter, faster version of analyze_position (single line, shallower default depth). Score is from White's point of view.
get_legal_movesA	List all legal moves in a position (SAN and UCI).
apply_movesA	Apply a sequence of moves to a position and return the resulting FEN. Useful for playing out a line without the server holding game state.
visualize_boardA	Render a position as a text board for human reading.
engine_infoA	Return the Stockfish engine's name, author, and a few configurable options.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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