A spec compliant, secure by default
CloudFoundry User Account and Authentication (UAA) Server
Google Auth Library for Node.js
Identity & Single Sign On for all earthlings and beyond
A library for implementing authentication/authorization in Ember.js
Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape
OAuth 2.0 authorization server toolkit for Node.js
Jupyter server extension to proxy requests with AWS SigV4 authentican
apache cookie SSO mechanism.
Token based authentication module for angular.js