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Saylor Innovations Chess – Lichess Daily Puzzle
x402
Saylor Innovations Chess – Lichess Daily Puzzle is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Returns the Lichess daily chess puzzle including FEN board position, puzzle rating, themes, and UCI solution moves
Price / call$0.01
Success—
StatusUnknown
How this service works
Lichess daily chess puzzle - FEN position, rating, themes and UCI solution moves
Output
A JSON object containing: a boolean 'found' flag, the puzzle ID, FEN string representing the board position, the side to move, an array of UCI solution moves, a numeric puzzle rating, an array of themes (e.g. 'fork', 'mateIn2'), a canonical URL to the puzzle on Lichess, and game metadata from the source game.
Example use cases
Daily chess puzzle for practice app
“Pull today's Lichess daily chess puzzle — I need the FEN position, puzzle rating, and the full UCI solution so I can display it in my chess training app.”
Chess bot difficulty calibration
“Get today's Lichess daily puzzle including its rating and themes so I can see if it matches the difficulty level I want to use in my puzzle bot.”
Morning chess newsletter content
“Fetch today's chess puzzle of the day with the board position and solution moves so I can include it in my morning chess newsletter.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chess/puzzle?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the current Lichess daily chess puzzle with full structured data (FEN, rating, themes, UCI moves) in a single paid API call, particularly when you want a reliable cached/proxied fetch of Lichess puzzle data without directly calling Lichess APIs yourself. Well-suited for apps, bots, or newsletters that refresh daily puzzle content.
Side effects
- Lichess upstream unavailable — returns found: false or HTTP error
- Puzzle not yet updated for the day — may return previous day's puzzle
- Network timeout on upstream Lichess request
- Payment not completed (x402) — request rejected before reaching puzzle data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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