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Free Books & Words APIs

Books, dictionaries and language data with stable, well-documented schemas. 19 of 23 on our probe schedule.

23In catalog23Probed by us19Healthy now0Degraded / dying393msMedian P50100.0%Median uptime · 30d
QuranBooks & WordsThe Quran.com API: chapters, verses and translationsHEALTHYauth noneBooks & WordsHEALTHY100%48 msnone12h agoQuran CloudBooks & WordsRetrieve any Ayah, Surah or Juz of the Quran as JSONHEALTHYauth noneBooks & WordsHEALTHY100%171 msnone12h agoWizard WorldBooks & WordsSpells, elixirs and houses from the Harry Potter worldHEALTHYauth noneBooks & WordsHEALTHY99.44%350 msnone12h agoCrossref Metadata SearchBooks & WordsScholarly metadata for tens of millions of DOIsHEALTHYauth noneBooks & WordsHEALTHY98.3%290 msnone11h agoRandom Word APIBooks & WordsRandom English wordsHEALTHYauth noneBooks & WordsHEALTHY98.3%144 msnone5h agoBible-apiBooks & WordsFetch Bible verses as clean JSON, no key requiredHEALTHYauth noneBooks & WordsHEALTHY98.9%328 msnone12h agoKDP IntelligenceBooks & WordsKindle niche demand and competition scores via APIHEALTHYauth noneBooks & WordsHEALTHY97.2%419 msnone12h agoAmanah SunnahBooks & WordsAmanah Sunnah — free tier with API keyHEALTHYauth apiKeyBooks & WordsHEALTHY99.44%456 msapiKey4h agoWiktionaryBooks & WordsQuery the crowd-built dictionary through MediaWiki's action APIHEALTHYauth noneBooks & WordsHEALTHY99.44%367 msnone12h agoHindi QuotesBooks & WordsRandom Hindi quotesHEALTHYauth noneBooks & WordsHEALTHY100%595 msnone4h agoRhymeBrainBooks & WordsRhyme lookup for any wordHEALTHYauth noneBooks & WordsHEALTHY100%483 msnone22 min agoHoly Bible APIBooks & WordsHoly Bible API — Free Bible API serving 800+ text translations and 40+ a…HEALTHYauth noneBooks & WordsHEALTHY100%605 msnone4h agoChinese Text ProjectBooks & WordsFull text of classical Chinese works, as JSON.HEALTHYauth noneBooks & WordsHEALTHY89.9%364 msnone10h agoKanji APIBooks & WordsKanji readings, strokes and meaningsHEALTHYauth noneBooks & WordsHEALTHY100%223 msnone5h agoQuran-apiBooks & WordsQuran text in 90+ languages, served free from a CDNHEALTHYauth noneBooks & WordsHEALTHY97.2%895 msnone12h agoBhagavad Gita teluguBooks & WordsBhagavad Gita verses in Telugu, Odia, English, and SpanishHEALTHYauth noneBooks & WordsHEALTHY100%1005 msnone12h agoPoetryDBBooks & WordsA public-domain poetry database you can query as JSONHEALTHYauth noneBooks & WordsHEALTHY91.6%464 msnone12h agoWolne LekturyBooks & WordsPolish free-library books, authors and epochs as JSONHEALTHYauth noneBooks & WordsHEALTHY74.2%817 msnone8h agoUrantia PapersBooks & WordsFull-text and semantic search over the Urantia PapersHEALTHYauth noneBooks & WordsHEALTHY86.0%3602 msnone12h agoGutendexBooks & WordsJSON search over the Project Gutenberg libraryDEADauth noneBooks & WordsDEAD3.4%3229 msnone11h agoFree DictionaryBooks & WordsEnglish word definitions, phonetics and audio as JSON.DEADauth noneBooks & WordsDEAD39.9%50 msnone12h agoRig VedaBooks & WordsStructured metadata for the hymns of the Rig VedaDEADauth noneBooks & WordsDEAD5.1%258 msnone8h agoMyMemoryBooks & WordsFree machine translation lookupDEADauth noneBooks & WordsDEAD0.0%—none8h ago
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Free Books & Words APIs — FAQ

Are there free Books & Words APIs with no API key?

Yes — 22 of the 23 free books & words APIs we list need no API key or signup (Quran is a good starting point). Use the "No key" filter above to see them; they're the fastest to prototype with.

Which free Books & Words API is the most reliable?

Of the 23 books & words APIs on our probe schedule, Quran leads on measured uptime (100% over 90 days). Reliability here is verified from our own scheduled checks, not the provider's claims — sort by "Reliable" to rank the rest.

Can I call these Books & Words APIs from the browser?

18 of these books & words APIs send CORS headers over HTTPS, so you can fetch them straight from front-end code — no backend proxy. Filter by "Browser OK" to see them; the rest need a server-side call.

Are these free Books & Words APIs OK for commercial use?

2 of the 23 books & words APIs allow commercial use on the free tier; the rest are unclear or personal-only. We record service terms and the data license as separate fields on every listing — check both before you ship.

How often are these Books & Words APIs checked?

19 of the 23 books & words APIs are on our probe schedule and re-tested every sweep. We log uptime, latency and response-shape changes on each, and move any that stay down to the graveyard so you can see what died and when.