Catalog of practical AI books with search, series, glossary and a claim ledger.
Greenlit Books 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.
The Greenlit Books public JSON API: books, series, concepts, and ranked search over plain HTTP GET. No auth, no scraping, OpenAPI 3.1 spec included.
Details from greenlitbooks.com.

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The Greenlit Books API is provided by Greenlit Books (greenlitbooks.com). The Greenlit Books public JSON API: books, series, concepts, and ranked search over plain HTTP GET. No auth, no scraping, OpenAPI 3.1 spec included.
Yes. The Greenlit Books 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 Greenlit Books API requires no authentication, so you can start making requests without signing up.
Yes. The Greenlit Books API supports CORS, so front-end JavaScript can call it directly.
Yes. The Greenlit Books API is served over HTTPS, so it's safe to use in production.