See http://www.instapaper.com/api/full

A Ruby wrapper for the Yammer REST API

A Ruby wrapper for the Active API

A simple CloudSight API Client for Image Recognition

Provides Ruby interface to Context.IO

This gem wraps the Flickr API with a nice object-oriented interface.

This gem is an object-oriented wrapper for the Flickr API.

A client library for Hatena::Bookmark RESTful API

Simple Ruby API Client for Immobilienscout24.

Ruby wrapper for the Justin.tv and Twitch.tv API

Kronk is a command line swiss-army-knife for HTTP services. With Kronk, you easily parse and segregate data, run diffs between the parsed data from different queries, and easily replay logs and loadtest your HTTP applications. Kronk was made possible by the sponsoring of YP.com.

Dead simple client for X (formerly Twitter) API (supports both v1 and v2)

Wrapper for the XING API

Use the Yahoo! Content Analysis API to extract topics and entities.

Simple Abiquo API client

Communicates with com_admincredible, a Joomla! extension that adds REST like APIs to Joomla installs

Twitter API wrapper for Ruby

A Ruby wrapper for the Assistly REST API

A framework for building automation.

BackedUp is a RubyGem, written for UNIX-like operating systems, that allows you to easily perform backup operations on both your remote and local environments. It provides you with an elegant DSL in Ruby for modeling your backups. Backup has built-in support for various databases, storage protocols/services, syncers, compressors, encryptors and notifiers which you can mix and match. It was built with modularity, extensibility and simplicity in mind. BackedUp is a fork of the seemingly discontinued Backup project/gem.