Scribe Java is a code library that enables developers to interact with the LinkedIn OAuth API. It also supports OAuth 1.0a and 2.0 for other popular APIs, such as Facebook, Twitter, Evernote, and Vimeo.
Yahoo! has announced the rollout of some limited tests for OpenID's Simple Registration specification. If you're not familiar with OpenID, it's an innovative way for handling user authentication that provides a free and easy way to use a single digital identity across the Internet.
Developers know the importance of internet security and being able to offer their users high standard password information protection. PassDefense is an application that offers developers a solution that enables them to authenticate and secure user data. The PassDefense API provides access to it's data, making it possible to create and authenticate users, send and retrieve data and more.