apereo/cas
Apereo CAS - Identity & Single Sign On for all earthlings and beyond. observed · 2026-08-28
Health v2 · maintenance only
99/100
- Activity 99
- Release rhythm 98
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 26
- age_days: 5473
- days_rel: 19
- days_push: 7
- n_releases_24m: 36
Adoption not part of the score
11360 stars · 3957 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Apereo CAS is an enterprise open-source identity provider and single sign-on server implemented in Java on Spring Boot. It centralizes authentication and authorization for web applications, supporting protocols like CAS, SAML2, OAuth2, and OpenID Connect, plus MFA and LDAP integration.
Use cases
- implement single sign-on across multiple web applications
- act as a SAML2 or OpenID Connect identity provider
- add multi-factor authentication to enterprise logins
- authenticate users against LDAP or Active Directory
- centralize OAuth2 authorization for internal services
- replace ad-hoc per-app login systems with one identity platform
When to choose
- you need a mature, self-hosted SSO identity server supporting many protocols
- your organization requires MFA, delegated authn, and fine-grained authorization policies
- you want an open-source alternative to commercial IdPs like Okta or Ping
When to avoid
- you only need simple session auth for a single small application
- your team cannot operate a JVM-based server with significant configuration overhead
- you need a lightweight embedded auth library rather than a standalone server
Facets
service · maturity stable
auth authorization http-server security security web-development backend self-hosted jvm self-hosted sso saml2 oauth2 openid-connect identity-provider mfa ldap spring-boot enterprise web-server docker
2 sources
- readme: https://github.com/apereo/cas · fetched 2026-08-28 · 59fe1e4e6e2a
- homepage: https://apereo.github.io/cas/ · fetched 2026-08-29 · 3ac6d62d1283
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| apereo/cas | main | 99 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem