Lumichess MCP Server

by lumichess Your server? Claim it

answering

Lumichess is answering right now. Last checked 13 min ago. It exposes 8 tools.

Chess tools: game reviews for Chess.com and Lichess, FIDE ratings, openings, positions, puzzles.

Uptime history 14 hours of history

14 hours agonow

100.0%

Uptime 24h

50 of 50 checks

Tools

read from the server

141 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Lumichess every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add chess --transport http https://lumichess.com/api/mcp

Settings → Connectors → Add custom connector, then paste this address

https://lumichess.com/api/mcp

~/.codex/config.toml

[mcp_servers.chess]
url = "https://lumichess.com/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "chess": {
      "url": "https://lumichess.com/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "chess": {
      "type": "http",
      "url": "https://lumichess.com/api/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

analyze

analyze_position

Facts about a chess position from its FEN: side to move, check, checkmate or stalemate, material, all legal moves, the opening name if it is a known opening position, and links to engine analysis and the best move.

chess

chess_profile

Current ratings and win/loss record of a Chess.com or Lichess player, with links to analyse their games and openings on lumichess.com.

daily

daily_puzzle

Today's Lumichess daily puzzle: the position, rating, themes and solution, with a link to solve it on the board.

elo

elo_change

Expected score and rating change for a win, draw or loss between two Elo ratings, at a chosen K-factor.

fide

fide_rating

Look up official FIDE ratings (standard, rapid, blitz), title, federation and birth year by player name or FIDE ID.

identify

identify_opening

Name the opening (ECO code and variation) from a list of moves or a PGN, and say on which move the game left named theory.

opening

opening_guide

Guide to a chess opening: first moves, ECO codes, how often it is played and how it scores, the main lines and the ideas behind them, from Lumichess opening pages. For other names, lists matching ECO lines.

review

review_game

Get a free move-by-move review of a Chess.com or Lichess game: accuracy, every move classified, the evaluation graph. Takes a game link or a PGN. Returns a lumichess.com review link; for a PGN also the players, result and opening.

Endpoints

URL	Transport	State	Latency	Checked
https://lumichess.com/api/mcp	streamable-http	answering	147 ms	13 min ago

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Lumichess — questions

Answers built from our own checks of this server.

What can Lumichess do?

It exposes 8 tools, read directly from the server on our last check. Among them: analyze_position, chess_profile, daily_puzzle, elo_change, fide_rating, identify_opening and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Lumichess working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 50 of 50 checks got a reply (100.0%), average response time 141 ms. The bar chart above shows every period we have measured.

How do I connect Lumichess?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Lumichess need an API key?

No. Lumichess completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Lumichess?

It answers our handshake in 141 ms on average, which is faster than 84% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.