{"uid":"cap_jjy1uNVvcEyUvEJ7p9SS-","slug":"saylor-innovations-chess-lichess-daily-puzzle-13f80acc","name":"Saylor Innovations Chess – Lichess Daily Puzzle","description":"Lichess daily chess puzzle - FEN position, rating, themes and UCI solution moves","url":"https://saylorinnovations.com/api/chess/puzzle?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["found"],"properties":{"id":{"type":["string","null"],"description":"Identifier of the record"},"fen":{"type":"string","description":"Board position in FEN notation"},"url":{"type":["string","null"],"description":"Canonical URL"},"game":{},"found":{"type":"boolean","description":"True when the lookup matched a record"},"rating":{"type":"number","description":"Rating"},"source":{"type":["string","null"],"description":"Data source the values come from"},"themes":{"type":["array","null"]},"side_to_move":{"type":["string","null"],"description":"Side to move"},"solution_uci":{"type":"array","items":{"type":"string"},"description":"Solution uci"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2aeEEhcwhPnkoopG9EapX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the Lichess daily chess puzzle including FEN board position, puzzle rating, themes, and UCI solution moves","exampleAgentPrompt":"Can you fetch today's Lichess daily chess puzzle and show me the FEN position, the themes, and the UCI solution moves?","exampleUseCases":[{"title":"Daily chess puzzle for practice app","prompt":"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."},{"title":"Chess bot difficulty calibration","prompt":"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."},{"title":"Morning chess newsletter content","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T19:08:38.446Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-chess-lichess-daily-puzzle-13f80acc"}