Apereo CAS

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Apereo CAS is ranked #1 of 24 in single sign-on software on Inferse. It runs on API, Self-hosted, Web. There is a free plan.

Compared on single sign-on software

Free plan: Yesapereo.org
SSO protocols: CAS, SAML 2.0, OAuth 2.0, OpenID Connectapereo.org
Directory integrations: LDAP, Active Directory, OpenLDAPapereo.org
Built-in MFA: Yesapereo.org
Adaptive access: Yesapereo.org

Facts

Purpose: CAS is a multilingual single sign-on solution and open-source identity provider for web authentication and authorization.apereo.org · 1 Oct 2026
Middleware: CAS operates as middleware between web applications and authentication sources, providing a unified authentication point.apereo.org · 1 Oct 2026
Security features: CAS provides session management, single logout, and passwordless multifactor authentication.apereo.org · 1 Oct 2026
Protocols: The project supports CAS, SAML v1, SAML v2, WS-Federation, OAuth2, OpenID Connect, and REST protocols.apereo.github.io · 1 Oct 2026
Authentication sources: Pluggable authentication support includes LDAP, databases, X.509, SPNEGO, JAAS, JWT, RADIUS, and MongoDB.apereo.github.io · 1 Oct 2026
Multifactor providers: Supported multifactor providers include Duo Security, YubiKey, RSA/RADIUS, Google Authenticator, FIDO2 WebAuthn, Twilio, Inwebo, and CAS Simple.apereo.github.io · 1 Oct 2026
Delegated authentication: CAS can delegate authentication to external providers such as ADFS, Facebook, Twitter, SAML2 identity providers, and OpenID Connect providers.apereo.github.io · 1 Oct 2026
Operations: CAS can monitor application and system behavior, statistics, and metrics in real time and centrally manage audits and logs.apereo.github.io · 1 Oct 2026
Clients: Cross-platform client support includes Java, .NET, PHP, Perl, and Apache clients.apereo.github.io · 1 Oct 2026
Integrations: CAS provides integrations with SAML2 service providers and supports SCIM, reCAPTCHA, and Swagger.apereo.github.io · 1 Oct 2026
WebAuthn security: WebAuthn support uses public-key cryptography for phishing-resistant authentication and can use security keys or built-in platform authenticators.apereo.github.io · 1 Oct 2026
License: Apereo CAS is distributed under the Apache License, Version 2.0.apereo.org · 1 Oct 2026
Support: Apereo staff do not provide technical project support but direct users to project communities and mailing lists, including CAS security, developer, and user lists.apereo.org · 1 Oct 2026
Audience: CAS originated in higher education and is also described as adaptable to Fortune 500 companies and small special-purpose installations.apereo.org · 1 Oct 2026
Latest release: Apereo announced CAS version 7.3.6 on April 8, 2026.apereo.org · 1 Oct 2026