Public Domain Books API
The world's free library, searchable. The complete Project Gutenberg catalog — 78,037 public-domain ebooks in 56 languages — with full-text search over titles, authors AND Library of Congress subjects ('pride and prejudice' → Gutenberg #1342; 'detective fiction' → 1,190 books), author and language filters (Jules Verne in French: 47 works), parsed display authors ('Austen, Jane, 1775-1817' becomes 'Jane Austen'), subjects, LoC classes and curated bookshelves. Every book ships with ready-to-use links: the Gutenberg landing page, plain-text and EPUB downloads, and a cover image — all from Gutenberg's stable cache layout (verified live). A random endpoint (optionally per language) powers book-of-the-day features, and detail responses include more works by the same author (Moby Dick → Typee, and the rest of Melville). Reading apps, e-ink devices, education platforms, language-learning tools, literary games and AI training corpora — the classics, one API call away.
Available Endpoints
Request Parameters
API URL
Please subscribe to see the API URL
Headers
Path Parameters
Please subscribe to see the actual API URL
import axios from 'axios';
const url = '{API_URL}';
const { data } = await axios.get(url, {
headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});