CAS is open source software supported primarily by an open and friendly community. Our premier free support channel is community discussion mediated primarily via Mailing Lists.

Apereo Foundation Membership

The Apereo Foundation is a New Jersey non-stock, non-profit corporation, with members drawn from all walks of life and industry sectors on four continents. It’s mission is to help educational organizations deliver their mission, by developing and sustaining open source software. By becoming an Apereo Foundation member, you –

  • Ensure support for software you rely on. Your membership dues work to ensure effective licensing, IPR management practices, infrastructure support, community coordination, outreach, and more.
  • Give your institution a say in the way Apereo is run, and how it sets priorities. Your institution has a vote in elections for the Apereo Foundation Board, which provides strategic leadership for the foundation.
  • Are able to access programs such as the Apereo Incubation Program. Have a software project you believe meets a higher education need? Apereo is the place to find partners and learn from others who’ve grown communities to sustain software.
  • Become part of a community of peers - a global network of educational institutions working together to address common issues and solve common problems - with many opportunities to participate.

For more information about organizational membership dues and fees, please see this page. For information about individual membership programs, see Friends of Apereo.

Paid/Commercial Support

Commercial support for CAS is provided by the following entities:

Free/Community Support

Please take the following steps to obtain support from the CAS user community.

:information_source: Community Etiquette

Remember that activity on the mailing lists and all other support channels is entirely voluntary. There are no SLAs. There are no guarantees. You may opt into professional support agreements with Apereo commercial service providers if that is unacceptable. Also unless explicitly asked, please avoid contacting individual project members directly.

Chat Rooms

The CAS community chat room is provided by Gitter. Apereo also has an official Slack chat workspace where you may find a #cas channel. The sign-up page is available here. A specific cas tag is also available for StackOverflow.

Mailing Lists

The CAS community discussion mailing list is a moderate traffic list where questions are typically answered on the order of minutes and typically resolved within a couple days. CAS developers monitor the list and frequently participate in discussion. See the Mailing Lists page for subscription and etiquette.


The Apereo Foundation (formerly Jasig) offers a number of conferences that provide presentations and training on a number of software products, including CAS, that are relevant to Higher Education. Conferences are an excellent venue for strengthening ties to the larger CAS community and related open source software ecosystem.