
Free Quran API Service with 90+ different languages and 400+ translations.
Quran-api is a free Books API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Details from github.com.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Free REST API for the Runyankore-Rukiga Bible — 66 books, 31106 verses
1330 Thirukkural poems and explanation in Tamil and English
The Quran-api is provided by fawazahmed0 (github.com).
Yes. The Quran-api is listed in the Books category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Quran-api requires no authentication, so you can start making requests without signing up.
Yes. The Quran-api supports CORS, so front-end JavaScript can call it directly.
Yes. The Quran-api is served over HTTPS, so it's safe to use in production.