Flexible authentication solution for Rails with Warden
Reliable Open Source Support for neo4j database Secure
Securely manage and synchronize app data for your users across their mobile devices
Backed by Amazon Manage Unique Identities Work Offline Store and Sync
OmniAuth is a flexible authentication system utilizing Rack middleware.
Easy Social Login Free
User Management and Authentication for Developers
Authentication User Management API Authentication Security Workflows
OAuth That Just Works
SDK's Integration with 100+ Providers Add your own provider Extreme simplicity
Buzzfeed's single-sign-on authentication proxy
Token-based AngularJS Authentication
Oauth with angular is a pain in the ass Great examples
Password-free signups. No social network required.
Great idea but shutdown: https://twitter.com/withcopper
Remove the OAuth dance with one request
Everything you need to manage users for your website or app.