Ganjoor vs Open Library

REST API behind the Ganjoor open-source classical Persian poetry archive, covering hundreds of poets (Hafez, Rumi, Ferdowsi, and more) with full poem text, biographical metadata, manuscript images, and audio recitations. Every read endpoint (poets, poem categories, verses) is fully keyless; only the write endpoints used by the project's own contributor tools require an OAuth2 bearer token.

Open Library, an Internet Archive project, exposes its book catalog for search, work/edition/author lookups by identifier, subjects, and public reading lists, returned as JSON, YAML, or RDF/XML, with a separate Covers API serving cover art by ISBN or Open Library ID. No API key is required, though sending a descriptive User-Agent and contact email triples the default 1-request-per-second anonymous rate limit. Bulk access is deliberately kept off the live API — the project publishes free monthly data dumps for that instead.