OAuth 2.0 service for Pi Engine
- OAuth 2.0 website: http://oauth.net/2/
- Zend Framework OAuth component: https://github.com/zendframework/ZendOAuth
- PHP OAuth 2 Server original: https://github.com/hswong3i/oauth2-php
- PHP OAuth 2 Server (draft 20): https://github.com/quizlet/oauth2-php
- PHP OAuth2 Server and Demo: https://github.com/bshaffer/oauth2-server-php
- PHP OAuth 2.0: https://github.com/fkooman/php-oauth
- PHP OAuth Framework: https://github.com/lncd/OAuth2