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Vextorium Book Info (ISBN & Title Search)
x402
Vextorium Book Info (ISBN & Title Search) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).
Looks up book metadata by ISBN-10/13 or title+author search via Open Library, returning title, authors, publisher, year, pages, languages, subjects, cover image, and links.
Price / call$0.003
Success—
StatusUnknown
How this service works
Book data by ISBN (10 or 13) or search by title and author on Open Library: title, authors, publisher, year, pages, languages, subjects, cover and links.
Output
Returns a JSON object with the book's ISBN, title, subtitle, list of authors, list of publishers, publication date, page count, subjects/topics, cover image URL, a link to the Open Library record, and the data source label. Fields may be null if not available.
Example use cases
Bibliographic data from ISBN barcode
“I just scanned the barcode on this book and got ISBN 9780062316097 — can you pull up the full details like the title, authors, publisher, year, and subjects?”
Author catalog research by title
“Search for books titled 'The Great Gatsby' by F. Scott Fitzgerald and give me the publication details including publisher, year, number of pages, and a cover image link.”
Enriching a reading list with metadata
“I have a book called 'Sapiens' by Yuval Noah Harari — can you fetch its ISBN, publisher, page count, and main subjects from Open Library?”
Technical details
Endpoint
POSThttps://api.vextorium.com/libro-info-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured bibliographic metadata (authors, publisher, year, pages, subjects, cover) for a specific book identified by ISBN or a title/author query, and you want results sourced from Open Library. Prefer this over generic web search when you need clean, structured data fields rather than unstructured text, and when the $0.002 per-call cost is acceptable for reliable bibliographic lookups.
Side effects
- ISBN not found in Open Library — returns null fields or empty result
- Title/author search yields no matches — returns null or empty
- Ambiguous title search returns unintended book — limit parameter helps narrow results
- Malformed or invalid ISBN format — may return no result
- Open Library upstream unavailable — request times out or returns error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| isbn | string | |
| autor | string | |
| limite | integer | |
| titulo | string |
Tags
x402
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