
Cat for every HTTP Status.
HTTP Cat API is a free Animals API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
API for HTTP Cats
Details from http.cat.

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The HTTP Cat API is provided by HTTP Cats (http.cat). API for HTTP Cats
Yes. The HTTP Cat API is listed in the Animals 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 HTTP Cat API requires no authentication, so you can start making requests without signing up.
Yes. The HTTP Cat API supports CORS, so front-end JavaScript can call it directly.
Yes. The HTTP Cat API is served over HTTPS, so it's safe to use in production.