Buku Indonesia API alternatives

Open data for Indonesian books by ISBN, author, and category. If it doesn't fit your project, here are the 10 best free Books APIs to use instead in 2026, out of 27 in the directory.

For reference, Buku Indonesia API: No API key needed · 100% uptime (30 days) · Callable from the browser (CORS).

1. 1

   PoetryDB API

   Online · 394 ms

   Enables you to get instant data from our vast poetry collection.

   • No API key needed
   • 100% uptime (30 days)
   • Fast: 394 ms response
   • Callable from the browser (CORS)

   No authHTTPSCORS
2. 2B

   Bayan API

   Online · 897 ms

   Arabic Islamic encyclopedia: hadith with grades and takhrij, Quran with tafsir, narrators.

   • No API key needed
   • 100% uptime (30 days)
   • Returns JSON at its URL
   • Callable from the browser (CORS)

   No authHTTPSCORS
3. 3

   BookRank API

   Online · 2244 ms

   Book rankings from open reader ratings: books, series, reading orders and authors.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   Crossref Metadata Search API

   Online · 349 ms

   Documentation for Crossref's REST API.

   • No API key needed
   • 100% uptime (30 days)
   • Fast: 349 ms response
   • HTTPS

   No authHTTPSCORS ?
5. 5

   Greenlit Books API

   Online · 1554 ms

   Catalog of practical AI books with search, series, glossary and a claim ledger.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
6. 6

   KDP Intelligence API

   Online · 1540 ms

   KDP niche demand scores, competition analysis and revenue estimates.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
7. 7

   Penguin Publishing API

   Online · 4277 ms

   Books, book covers and related data.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8

   Quran API

   Online · 5712 ms

   RESTful Quran API with multiple languages.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
9. 9

   Quran Cloud API

   Online · 2116 ms

   A RESTful Quran API to retrieve an Ayah, Surah, Juz or the entire Holy Quran.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
10. 10

    Quran-api

    Online · 2021 ms

    Free Quran API Service with 90+ different languages and 400+ translations.

    • No API key needed
    • 100% uptime (30 days)
    • Callable from the browser (CORS)
    • HTTPS

    No authHTTPSCORS

Buku Indonesia API vs alternatives

Buku Indonesia API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
Buku Indonesia	No	Yes	Yes	100%	1362 ms	Not rated
PoetryDB	No	Yes	Yes	100%	394 ms	Not rated
BBayan	No	Yes	Yes	100%	897 ms	Not rated
BookRank	No	Yes	Yes	100%	2244 ms	Not rated
Crossref Metadata Search	No	Yes	Unknown	100%	349 ms	Not rated
Greenlit Books	No	Yes	Yes	100%	1554 ms	Not rated
KDP Intelligence	No	Yes	Yes	100%	1540 ms	Not rated
Penguin Publishing	No	Yes	Yes	100%	4277 ms	Not rated
Quran	No	Yes	Yes	100%	5712 ms	Not rated

See also: best Books APIs · all Books APIs