mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. It can also function as an OAuth 2.0 Resource Server, validating OAuth 2.0 bearer access tokens presented by OAuth 2.0 Clients. This module enables an Apache 2.x web server to operate as an OpenID Connect Relying Party (RP) to an OpenID Connect Provider (OP). It authenticates users against an OpenID Connect Provider, receives user identity information from the OP in a so called ID Token and passes on the identity information (a.k.a. claims) in the ID Token to applications hosted and protected by the Apache web server.