Organise ActiveRecord model into a tree structure

Easiest way to add multi-environment yaml settings to Rails, Sinatra, Padrino and other Ruby projects.

The authorization Gem for Ruby on Rails.

Adapters-based API serializers with Hypermedia support for Ruby apps.

Cucumber steps to easily test REST-based XML and JSON APIs

Simple (and safe*) token authentication for Rails apps or API with Devise.