Server data from the Official MCP Registry
Chess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.
About
Chess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.
Remote endpoints: streamable-http: https://www.chessigma.com/api/mcp
Security Report
Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
7 tools verified · Open access · No issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"com-chessigma-chessigma": {
"url": "https://www.chessigma.com/api/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Chessigma MCP server
Chess tools for Claude, ChatGPT and any MCP client, from Chessigma: opening guides, the opening behind any moves, position and game facts, review links for Chess.com and Lichess games, the daily puzzle and Elo estimates. Read-only, no account, no sign-in.
- Server URL:
https://www.chessigma.com/api/mcp(Streamable HTTP, no authentication) - Documentation: https://www.chessigma.com/developers/mcp
The server runs on chessigma.com, so there is nothing to install. This repository holds its public description and the server.json published to the official MCP Registry.
Connect
Claude (web, desktop and mobile apps): add Chessigma from Claude's connector directory, or search for Chessigma in Customize > Connectors. No account or sign-in.
Claude Code
claude mcp add --transport http chessigma https://www.chessigma.com/api/mcp
Cursor (~/.cursor/mcp.json)
{ "mcpServers": { "chessigma": { "url": "https://www.chessigma.com/api/mcp" } } }
VS Code (.vscode/mcp.json)
{ "servers": { "chessigma": { "type": "http", "url": "https://www.chessigma.com/api/mcp" } } }
ChatGPT and other clients: add a remote MCP server with the URL above, Streamable HTTP, no authentication.
Tools
| Tool | What it does |
|---|---|
get_opening_guide | Chessigma's guide to an opening by name: main line, key variations and the ideas for each side. Popular openings have a full guide; any of about 3,700 catalogued names returns its ECO code and moves. |
identify_opening | Names the opening of a move sequence or PGN: ECO code, how long it followed theory, and the first move that left it. |
analyze_position | Reads a FEN: side to move, check, mate or stalemate, every legal move, the material count and the opening name. |
analyze_game | Summarizes a PGN: players, result, opening, how the game ended and the final position. |
review_online_game | Turns a public Chess.com live game or Lichess game link into a link to its move-by-move review on Chessigma. |
get_daily_puzzle | Today's puzzle, or any day's since 1 January 2024: the position, the solution and a link to play it. |
calculate_elo | Estimates the rating change after one game with the Elo formula, with K-factor defaults for FIDE, Chess.com and Lichess. |
The tools state facts from the rules of chess, an opening catalogue and Chessigma's puzzle archive; they do not run an engine. For engine analysis, their links open the Chessigma analysis board, where Stockfish runs in your browser.
Try asking
- Teach me the Caro-Kann: main line, key variations and the ideas for both sides.
- What opening is 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6?
- Is Black checkmated here?
r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4 - Review this game for me: https://www.chess.com/game/live/173765478164
- Show me today's chess puzzle and let me try to solve it.
- I'm rated 1500 and just beat a 1650. How much Elo do I gain?
Privacy and limits
No tool writes data, calls an AI model or fetches another site while it runs, and the input you send is not stored. For rate limiting, each request's time, method, path, IP address and user agent are logged. All callers share 300 requests per minute. Details: privacy policy and terms.
Support
License
The contents of this repository are under the MIT License. The Chessigma name and logo are not.
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