API archive entry · source-reported
Gutendex
Web-API for fetching data from Project Gutenberg Books Library
Other Books APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Crossref Metadata Search
Books & Articles Metadata
No auth · HTTPS reported · CORS Unknown
GurbaniNow
Fast and Accurate Gurbani RESTful API
No auth · HTTPS reported · CORS Unknown
Wolne Lektury
API for obtaining information about e-books available on the WolneLektury.pl website
No auth · HTTPS reported · CORS Unknown
Bhagavad Gita telugu
Bhagavad Gita API in telugu and odia languages
No auth · HTTPS reported · CORS Yes
Bible-api
Free Bible API with multiple languages
No auth · HTTPS reported · CORS Yes
KDP Intelligence
KDP niche demand scores, competition analysis and revenue estimates
No auth · HTTPS reported · CORS Yes
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.