Free chess analysis API that accepts PGN or positions and returns game analysis, an Elo calculator, and the daily puzzle. No signup or API key is required and analysis is produced via the site’s client-side engine.
Build a game-review tool, integrate instant best-move lookups, or add a daily puzzle to your app using Chessigma. You can submit PGN or FEN, get a viewable game URL, compute Elo changes, and fetch today’s puzzle — all without signing up. The API is free to use, but it enforces a shared 30 requests/minute rate limit. Note that detailed analysis is produced client-side, so analysis data is available once a user opens the game page and triggers the engine.
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