> /v1/apis/category/authentication-and-authorization
Free Authentication & Authorization APIs[008]
8 free public APIs in the Authentication & Authorization category — 0 require no authentication, 8 support HTTPS, 5 have CORS enabled.
Auth0
Easy to implement, adaptable authentication and authorization platform
Clerk
Drop-in React components for authentication and authorization
Corbado
Passkey-first authentication
GetOTP
Implement OTP flow quickly
Kinde
Authentication for modern applications. Integrates in minutes and free up to 7,500 MAU
MojoAuth
Secure and modern passwordless authentication platform
Stytch
User infrastructure for modern applications
Warrant
APIs for authorization and access control
// FREQUENTLY ASKED
What are the best free Authentication & Authorization APIs?
The directory tracks 8 free public Authentication & Authorization APIs. Top picks include Auth0, Clerk, Corbado, GetOTP, Kinde — see the full list above, all free to use.
Are there free Authentication & Authorization APIs without authentication?
0 of 8 Authentication & Authorization APIs require no authentication and can be used immediately without an API key.
Do these APIs support HTTPS?
8 of 8 Authentication & Authorization APIs support HTTPS.