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Books & Ebooks
Book metadata, ISBN lookup and public-domain ebook APIs.
JSON: /api/v1/directory.json (filter on category=books-apis)
Open Library API
One webpage for every book ever published!
FreeNo authGoogle Books API
Book search and metadata.
FreeAPI keyProject Gutenberg (Gutendex)
JSON API for Gutenberg books.
FreeNo authHardcover API
GraphQL book tracking API.
FreeAPI keyISBNdb
ISBN metadata.
PaidAPI keyStandard Ebooks
Quality public domain ebooks.
FreeNo authInternet Archive Books
Free books archive.
FreeNo authOpen Library Covers API
Cover images by ISBN, OLID or ID.
FreeNo authISBNdb API
Book data lookup by ISBN, author and title.
PaidAPI keyGoodreads
Book social network; public API closed to new developers.
FreeNo authLibraryThing API
Book cataloging and recommendation services.
FreeAPI keyStoryGraph
Reading tracker; no public API.
Free tierNo authBookshop.org Affiliate
Independent bookseller marketplace with affiliate links.
FreeNo authCalibre-Web
Self-hosted web interface for Calibre libraries.
FreeNo authOpen Library Subjects API
Books by subject.
FreeNo authLibriVox
Public domain audiobooks.
FreeNo authWikisource
Free library.
FreeNo auth