Chessagine
Analyze chess positions using powerful engines like Stockfish, Leela, and Maia.
Community: Submitted by a user or imported; check the owner before granting accessOnlineNo sign-inGlobalFreeRead-only
What it can do
- Get Lichess Master Games: Fetch master-level games and opening statistics from Lichess for a given position
- Get Lichess Games: Fetch Lichess user games and opening statistics for a given position
- Fetch Lichess Games: Fetch the 20 most recent games for a Lichess user. Returns game details including player information, ratings, speed format, and PGN notation. Useful for analyzing a player's rece
What data it sees
Do you need an account
No: the server works without sign-in
Analyze chess positions using powerful engines like Stockfish, Leela, and Maia. Retrieve games, puzzles, and opening statistics directly from Lichess and specialized databases. Visualize moves and games through interactive board renders and PGN viewers.
How to connect
How to connect Chessagine to Claude
The server address to paste into Claude settings:
https://chessagine--jalpp.run.tools
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect Chessagine to ChatGPT
The server address to paste into ChatGPT settings:
https://chessagine--jalpp.run.tools
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect Chessagine to Cursor
The server address to paste into Cursor settings:
https://chessagine--jalpp.run.tools
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (37)
Raw names from tools/list. Only developers need these.
| get-lichess-master-games | Fetch master-level games and opening statistics from Lichess for a given position |
| get-lichess-games | Fetch Lichess user games and opening statistics for a given position |
| fetch-lichess-games | Fetch the 20 most recent games for a Lichess user. Returns game details including player information, ratings, speed format, and PGN notation. Useful for analyzing a player's recent performance, openings, and game history. |
| fetch-lichess-game | Fetch a specific Lichess game in PGN format. Accepts either a full Lichess URL or a game ID. Returns the complete PGN notation with headers and moves, ready for analysis or display. |
| fetch-chess-puzzle | Fetch a random chess puzzle from Lichess database. Can filter by themes and rating range. Use this to start a puzzle session with the user. |
| get-lichess-username | Get the lichess username of current mcp user |
| fetch-lichess-studies | Fetch all studies for a given Lichess user. Returns a list of studies with their IDs, names, and timestamps. Requires either LICHESS_STUDY_TOKEN environment variable or token parameter. |
| fetch-lichess-study-pgn | Fetch a specific Lichess study in PGN format. Returns all chapters of the study as PGN. Requires either LICHESS_STUDY_TOKEN environment variable or token parameter. |
| render_chess_board | Render an interactive chess board with the given position. Shows the board visually for a single position. Use this for displaying a specific chess position from FEN notation. |
| render_pgn_viewer | Render an interactive PGN game viewer that allows navigating through chess game moves. Use this for displaying complete chess games with move history, annotations, and the ability to step through moves. Supports PGN format with headers like Event, Site, Date, White, Black, Result, and move notation. |
| is-legal-move | Check if a given move is legal for the provided FEN position |
| get-boardstate-for-move | Given a FEN and a move, returns a string describing the resulting board state after the move |
| get-boardstate-for-fen | Given a FEN, returns a string describing the resulting board state for that FEN |
| get-chessboardmagic-repertoires | Fetch user's chess repertoires from the Chessboard Magic Repertoire Builder |
| get-chessboardmagic-games | Fetch user's chess games from the Chessboard Magic Repertoire Builder |
| get-chessboardmagic-game-details | Fetch user's single game's metadata, moves, tags, variations and comment links |
| get-chessboardmagic-repertoire-details | Fetch user's single repertoire metadata, moves, variations and comment links |
| get-chessboardmagic-tcec-stats | Fetch TCEC (Top Chess Engine Championship) statistics for a specific chess position |
| get-chessboardmagic-tcec-games | Fetch TCEC games that reached a specific chess position |
| get-chessboardmagic-corr-stats | Fetch correspondence chess statistics for a specific chess position |
| get-chessboardmagic-corr-games | Fetch correspondence chess games that reached a specific chess position |
| get-stockfish-analysis | Analyze a chess position using Stockfish 18 Multi-threated Lite WASM engine |
| fen-openingbook-lookup | Look up a fen in 12k positions of opening book to get name, moves information for fen |
| get-stockfish-best-move | Find the best move in a chess position using Stockfish 18 Multi-threated Lite WASM engine |
| get-stockfish-multipv-analysis | Analyze a chess position and get multiple best move candidates with Stockfish 18 Multi-threated Lite WASM engine |
| get-stockfish-batch-analysis | Analyze multiple chess positions in batch using Stockfish 18 Multi-threated Lite WASM engine |
| get-chess-knowledgebase | Returns a comprehensive chess knowledgebase including Silman Imbalances, Fine's 30 chess principles, endgame principles, and practical checklists |
| get-chessagine-stater-prompts | List all available chess analysis prompt categories with their example prompts |
| get-puzzle-themes | Get a list of all available puzzle themes that can be used to filter puzzles |
| parse-pgn-into-fens | Collect a fen list of given game pgn |
| get-fen-map-lookup | Lookup fens for mapped SAN move, for given game PGN |
| get-chessdb-analysis | Fetch position analysis and candidate moves from ChessDB |
| get-chessdb-pv | Fetch the principal variation (best line) for a position from ChessDB |
| queue-chessdb-analysis | Queue a chess position for background analysis on ChessDB |
| get-maia2-analysis | Analyze chess position using Maia2 neural network trained on human games at specific rating levels. Provides human-like move suggestions and evaluations tailored to player strength (1100-1900 rating). |
| get-leela-analysis | Analyze chess position using Leela Chess Zero neural network. Provides strong tactical analysis with neural network evaluation and candidate moves. Uses T1-256x10 neural net, trained on self played games |
| get-elite-leela-analysis | Analyze chess position using Elite Leela Chess Zero with enhanced evaluation. Provides top-level computer analysis with deep neural network insights. Trained on 20M games from Lichess Elite Database (2500 - 3000) |