A privacy-aware, distributed, open source social network.

An opinionated framework for creating REST-like APIs in Ruby.

Determines which markup library to use to render a content file (e.g. README) on GitHub

Rails for API only applications

A lightweight Facebook library supporting the Graph, Marketing, and Atlas APIs, realtime updates, test users, and OAuth.

Download MP3 files of Spotify tracks

RDF.rb is a pure-Ruby library for working with Resource Description Framework (RDF) data.

Rails provides an excellent XML Builder by default to build RSS and ATOM feeds, but nothing to help you build complex and custom JSON data structures. JSON Builder is here to help.

A Ruby interface to the WordNet® Lexical Database.

A simple Oauth2 Provider using the oauth-plugin gem

Grooveshark.com unofficial API library

Various REST clients such as Facebook and Twitter built with rest-core

The "jiveapps" gem is a set of command line tools for building and hosting Jive Apps.

Builder-like JSON templating (for Rails)