MCP server

BetterChess Official

co.betterchess/betterchess

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Chess MCP for Claude: engine analysis, attack maps, game review. One URL, no install.

Website

At a glance

Type

MCP server

Publisher

betterchess.co (verified by the MCP Registry)

Status

Working at last check

Tools

4

Token cost

About 1,055 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http betterchess https://mcp.betterchess.co

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.betterchess]
url = "https://mcp.betterchess.co"

Gemini CLI

{"mcpServers":{"betterchess":{"httpUrl":"https://mcp.betterchess.co"}}}

Cursor

{"mcpServers":{"betterchess":{"url":"https://mcp.betterchess.co"}}}

VS Code

{"servers":{"betterchess":{"type":"http","url":"https://mcp.betterchess.co"}}}

Antigravity

agy mcp add betterchess https://mcp.betterchess.co

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"betterchess","server_url":"https://mcp.betterchess.co","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"betterchess","server_url":"https://mcp.betterchess.co"}

Tools

• chess_analyse ~429 tokens
  Returns an engine evaluation of a chess position: the strongest candidate moves with their scores, and the position's checkable facts — side to move, whether that side is in check, undefended pieces and the pieces attacking them, and the material balance. Accepts a FEN, a PGN, or a list of SAN moves
• chess_attacks ~205 tokens
  Returns the exact list of squares attacked by the piece standing on a given square in a chess position, together with that piece's type and colour. Returns an empty list when the square is unoccupied. Accepts a FEN, a PGN, or a list of SAN moves from the starting position.
• chess_review ~265 tokens
  Replays a finished game ply by ply with the engine and returns the moves where the evaluation swung by more than a threshold (default 1.5 pawns). Each entry gives the move number, the side that moved, the move played, the engine's preferred move, the size of the swing in pawns, the evaluation before
• chess_rig ~156 tokens
  Returns the JavaScript source of the in-page coaching rig for a chess.com bot game, to be run in that page by the browser's javascript tool. Once running, the page exposes window.__coachWait(ms) (resolves with events and board status), window.__coachWatch.status() (moves, fen, turn, myTurn, result)

Browse

• Claude tools
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