Authentication & Identity APIs
Authentication & Identity APIs
Authentication, authorization, identity management, and access control APIs.
Authentication & Identity APIs are essential for modern applications that need secure user authentication and identity management. Whether you’re building a startup MVP or scaling an enterprise platform, choosing the right authentication & identity api API can accelerate development and reduce operational overhead.
Popular Authentication & Identity APIs
- Auth0 API - Identity platform with SSO, MFA, social login, and passwordless authentication.
- Clerk API - User management with pre-built React/Next.js components and multi-session support.
- Supabase Auth API - Authentication with email, OAuth, magic links, and row-level security policies.
- Firebase Auth API - Authentication with email, phone, Google, and social providers for mobile and web.
- Okta API - Enterprise identity and access management with SSO, SAML, SCIM, and lifecycle management.
- AWS Cognito API - User pools, identity pools, and SSO for AWS-based applications.
- Keycloak API - Open-source IAM with SSO, social login, LDAP federation, and protocol support.
- Stytch API - Passwordless authentication with passkeys, magic links, and biometrics.
- Descope API - Passwordless authentication with flows, SSO, and step-up authentication.
- Passage API - Passkey authentication for web and mobile with 1Password integration.
- FusionAuth API - Auth platform with SSO, SAML, OAuth, and tenant management.
- Ory API - Open-source identity platform with OAuth2, Ory Kratos, and Ory Oathkeeper.
- NextAuth.js API - Authentication library for Next.js with 70+ providers and JWT or database sessions.
- Lucia API - TypeScript authentication library with sessions, OAuth, and database adapters.