Apereo CAS is an open-source enterprise-grade identity and single sign-on (SSO) platform designed to securely authenticate users across multiple applications while centralizing identity management and authentication concerns. Built for flexibility and scalability, CAS supports modern authentication standards such as SAML, OAuth, and OpenID Connect, integrates with a wide range of directories and identity stores, and offers robust features like multifactor authentication, delegated authentication, and comprehensive auditing. Its modular architecture allows organizations to tailor deployments to their security and usability needs, while its active community and transparent governance ensure continuous innovation and long-term reliability.
