{"uid":"cap_ljDNm-H2LI7x2StCDLJX3","slug":"sitecheck-book-lookup-aa3805c8","name":"SiteCheck Book Lookup","description":"Book lookup by ISBN (checked before the call) or by title and/or author: title, subtitle, authors, publishers, first publish year, median page count, ISBN-10 and ISBN-13 of the matching edition, languages, subjects, cover image URL, and the Open Library work and Wikidata ids. Data from Open Library (CC0). A title with no match is a 404, not charged. Up to 20 results.","url":"https://api.sitecheck-api.workers.dev/api/books?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"},"queryParams":{"type":"object","required":[],"properties":{"isbn":{"type":"string","description":"ISBN-10 or ISBN-13 with or without hyphens (optional)"},"limit":{"type":"string","description":"Results, 1 to 20, default 5"},"title":{"type":"string","description":"Title words, up to 200 characters (optional)"},"author":{"type":"string","description":"Author name, up to 200 characters (optional)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"books":[{"title":"Fantastic Mr Fox","authors":["Roald Dahl"],"coverUrl":"https://covers.openlibrary.org/b/id/6498519-L.jpg","editions":161,"subjects":["Animals","Hunger","Open Library Staff Picks"],"subtitle":null,"languages":["jpn","sco","ita"],"pageCount":96,"publishers":["Zemorah-Bitan","Puffin Audiobooks","SUD-AGUILA"],"wikidataIds":["Q126696579"],"editionIsbns":["9789575456108","9780001006904","0001031902"],"openLibraryWork":"/works/OL45804W","firstPublishYear":1970,"editionIsbnsTotal":276}],"count":1,"query":{"isbn":"9780140328721"},"source":"Open Library search API (openlibrary.org, data CC0)","edition":{"pages":96,"title":"Fantastic Mr. Fox","isbn10":"0140328726","isbn13":"9780140328721","coverUrl":"https://covers.openlibrary.org/b/id/15152634-L.jpg","languages":["eng"],"publishers":["Puffin"],"publishDate":"October 1, 1988","openLibraryEdition":"/books/OL7353617M"},"checkedAt":"2026-10-15T15:14:30.074Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ATmTcj0Pb0HrzXWKgW4u8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up book metadata by ISBN, title, or author using the Open Library API, returning edition details, cover images, subjects, publishers, and more.","exampleAgentPrompt":"Can you look up the book details for ISBN 9780140328721, including the cover image, publisher, authors, and how many editions exist?","exampleUseCases":[{"title":"ISBN barcode scan enrichment","prompt":"I just scanned the barcode on a book and got ISBN 9780743273565 — can you pull up the full details for it, like the title, author, publisher, and cover image?"},{"title":"Author bibliography search","prompt":"Find me up to 10 books written by Roald Dahl and show me the titles, cover images, and first publication years."},{"title":"Book title research for a reading list","prompt":"I'm building a reading list — can you search for books with 'Fantastic Mr Fox' in the title and show me the editions, subjects, and page count?"}],"resultDescription":"Returns a JSON object containing a list of matching books with title, authors, cover URL, edition count, subjects, languages, page count, publishers, Wikidata IDs, edition ISBNs, Open Library work ID, and first publish year. Also includes a specific edition object (when ISBN is provided) with ISBN-10, ISBN-13, publish date, and edition-specific cover URL, plus the query parameters used and a checkedAt timestamp.","failureModes":["ISBN not found in Open Library — returns empty books array","Invalid ISBN format — may return no results or unrelated results","Author/title search with too-common terms returns irrelevant results","Open Library API unavailable — upstream timeout or error","Limit parameter out of range (must be 1–20) may return default count","Missing required input object causes validation error"],"whenToPreferThis":"Use this endpoint when you need structured bibliographic data for a book identified by ISBN, title, or author — especially when you need cover images, publisher history, edition counts, or Open Library/Wikidata identifiers. Prefer this over general web search when you want clean, structured library data rather than scraped text. Best suited for agents building reading lists, cataloging books, enriching product databases, or validating book metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:41:00.112Z","isFirstParty":false,"canonicalSlug":"sitecheck-book-lookup-aa3805c8"}