Try any of 1042 endpoints — live.
Pick an endpoint, load a working example, tweak the params, and send — no signup to try. Results render the way the data deserves; raw JSON, headers & code are one tab away.
public-domain full-text (Project Gutenberg): query OR id=Gutenberg-id OR ids=batch; filters languages/topic/sort; returns formats{epub/txt/html/kindle/cover}+download_url+read_url; gutenberg.org OPDS fallback when gutendex is down
Full-text search of Project Gutenberg. Supply `query` OR `id` (Gutenberg id) OR `ids` (batch) OR a filter.
A single Project Gutenberg ebook id (digits).
Batch of Gutenberg ids (list or comma-separated string).
Gutendex language filter — comma-separated ISO 639-1 codes (e.g. en, fr).
Gutendex topic filter (matches bookshelf or subject).
Gutendex ordering. Known keys shown; passed through if Gutendex adds more.
Gutendex mime_type filter (e.g. application/epub+zip, text/plain).
Gutendex filter: author alive on/after this year.
Gutendex filter: author alive on/before this year.
Gutendex copyright filter: true|false|null (comma-separated to combine).
Results per page (1-32, default 32); out-of-range values are clamped. (1–32)
1-based page number (clamped to 1-1000). (1–1000)
curl -X POST https://api.reefapi.com/books/v1/ebook \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"id":"1342"}'Hit Send to run this endpoint live.