
Easy to implement, adaptable authentication and authorization platform.
Auth0 API is a free Authentication & Authorization API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Secure users, AI agents, and more with Auth0, an easy-to-implement, scalable, and adaptable authentication and authorization platform.
Details from auth0.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.
The Auth0 API is provided by Auth0 (auth0.com). Secure users, AI agents, and more with Auth0, an easy-to-implement, scalable, and adaptable authentication and authorization platform.
Yes. The Auth0 API is listed in the Authentication & Authorization 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.
Yes. The Auth0 API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Auth0 API supports CORS, so front-end JavaScript can call it directly.
Yes. The Auth0 API is served over HTTPS, so it's safe to use in production.