MAS (Matrix Authentication Service) is an OAuth 2.0 and OpenID Provider server for Matrix.
It has been created to support the migration of Matrix to an OpenID Connect (OIDC) based authentication layer as per MSC3861.
See the Documentation for information on installation and use.
You can learn more about Matrix and OIDC at areweoidcyet.com.
MAS is known to work with the following upstream IdPs via OIDC: