Christopher Johnson authored as Tenorviol on Github to provide a third party Facebook SDK in Node.js language. The site mentions this is a port of Facebook's PHP SDK. It also states that users can interact with Facebook Graph API. Generally speaking, Facebook platforms APIs aim to develop social applications. In this case, Tenorviol offers a guide to install, use as connect middleware, perform stand alone usage, and test with Node.js.
Messaging just got a lot more interesting to look at. Words say a lot, but a picture is worth a thousand of them; imagine the levels of communication that could be achieved using both. Doodle Republic is a messaging platform that provides the tools to create messages that include words and images. Basically, people chat by creating their own art and sending it to friends as a Chatoon. The Doodle Republic Chatoon API makes this functionality available to developers who may want to include it in other applications.