OpenID Connect Provider and OAuth2 Authorization Server Framework
A modern authorization server built to authenticate your users and protect your APIs
OpenID Connect Provider and OAuth2 Authorization Server
Play2.x Authentication and Authorization module
Continuation of CanCan, the authorization Gem for Ruby on Rails.
An OAuth 2 client for PHP with multiple authorization flows support
An Authentication and Authorization system for wormhole corps/alliances within EVE Online
Minimalistic authorization focused on APIs