Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Apereo CAS - Single Sign On for the Web
Java JavaScript Other
Failed to load latest commit information.
cas-management-webapp Updated Polish translations for version 4.1.x; issue #994
cas-server-compatibility removing duplicate groupids
cas-server-core cleaned up log statement
cas-server-documentation Merge branch 'master' into logaspect
cas-server-extension-clearpass removing duplicate groupids
cas-server-integration-ehcache replacing tab with spaces
cas-server-integration-jboss removing duplicate groupids
cas-server-integration-memcached Merge commit 'b9ed808fb15daa132c9f6f62dfa2728728684fb9' into persondi…
cas-server-integration-restlet removing duplicate groupids
cas-server-support-generic removing duplicate groupids
cas-server-support-jdbc removing duplicate groupids
cas-server-support-ldap fixed cs issue
cas-server-support-legacy removing duplicate groupids
cas-server-support-oauth BEARER_TOKEN: toLowerCase() instead of separate constant when checkin…
cas-server-support-openid removing duplicate groupids
cas-server-support-pac4j CAS-957 Switch the build to use Java 8 by default
cas-server-support-radius removing duplicate groupids
cas-server-support-rest removing duplicate groupids
cas-server-support-saml replacing tab with spaces
cas-server-support-spnego CAS-957 Switch the build to use Java 8 by default
cas-server-support-trusted removing duplicate groupids
cas-server-support-x509 CAS-957 Switch the build to use Java 8 by default
cas-server-uber-webapp replacing tab with spaces
cas-server-webapp-support Merge branch 'master' into logaspect
cas-server-webapp Check for gateway mode on invalid TGT
etc updated licences
src replacing tab with spaces
travis Update
.gitignore Update to pac4j v1.7
.travis.yml Update .travis.yml CAS-1398: Added file
LICENSE CAS-1101 Update licensing to Apache License, Version 2.0.
NOTICE updated NOTICE files Update
assembly.xml replacing tab with spaces
checkstyle-rules.xml cs/findbugs updates
checkstyle-suppressions.xml ignore magic number for test
findbugs-rules.xml replacing tab with spaces
pom.xml Merge branch 'master' into metrics-update
tasks.xml replacing tab with spaces

Central Authentication Service (CAS)


Welcome to the home of the Central Authentication Service project, more commonly referred to as CAS. The Central Authentication Service (CAS) is the standard mechanism by which web applications should authenticate users.

CAS provides enterprise single sign-on service:

  • An open and well-documented protocol
  • An open-source Java server component
  • A library of clients for Java, .Net, PHP, Perl, Apache, uPortal, and others
  • Integrates with uPortal, BlueSocket, TikiWiki, Mule, Liferay, Moodle and others
  • Community documentation and implementation support
  • An extensive community of adopters

Build Build Status Codeship Status for Jasig/cas Coverage Status Dependency Management Issue Stats Issue Stats

It is recommended to build and deploy CAS locally using the Maven War Overlay method. This approach does not require the adopter to explicitly download any version of CAS, but rather utilizes Maven's overlay mechanism to combine CAS original artifacts and local customizations to further ease future upgrades and maintenance.

Download Maven Central Bitdeli Badge

  • Binary releases may be downloaded from here.
  • CAS artifacts are published through the Maven Central Repository.
  • A snapshot of the codebase's master branch may be downloaded from here.
  • Snapshot artifacts are also published through the Sonatype snapashots repository under the group id org.jasig.cas.
  • The codebase may also be cloned using a Git client via the following command:
git clone

Note: If building CAS from the source, running the test cases currently requires an active Internet connection. Please see the maven docs on how to disable the tests.

Documentation License


  • CAS Addons is an open source collection of useful CAS server extensions.


Something went wrong with that request. Please try again.