Apereo CAS vs authentik
| Apereo CAS | authentik | |
|---|---|---|
| Free plan | Yes | Yes |
| Paid from | Free | $5/mo |
| Platforms | api, self-hosted, Web | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| SSO protocols | CAS, SAML 2.0, OAuth 2.0, OpenID Connect | OAuth2/OpenID Connect, SAML2, LDAP, SCIM, RADIUS, Kerberos, WS-Federation |
| Directory integrations | LDAP, Active Directory, OpenLDAP | |
| Built-in MFA | Yes | |
| Adaptive access | Yes | Yes |
| Paid from | 5 /user/mo | |
| MFA methods | Static tokens, TOTP, WebAuthn/FIDO2/passkeys, email, SMS, Duo | |
| Directory sync | Yes | |
| Lifecycle provisioning | Yes | |
| Adaptive access policies | Yes |
Listed together in Best Single Sign-On Software