CalNet offers two options for Single Sign-On service integration at UC Berkeley.
Central Authentication Service (CAS)
CAS is used for CAS/SAML1/SAML2/OIDC integrations, and can be used to integrate with applications hosted on or off campus.
Submit a Service Request for CAS integration
Shibboleth
Shib is used primarily for SAML2 integrations, and is mostly used to integrate with off-campus applications supporting SAML2.