- rocket_pants 953 API building tools on top of ActionController. Also, an awesome name.
- barista 421 Simple, transparent CoffeeScript support for Rails and Rack apps.
- api_smith 219 API Smith makes building structured API clients even simpler.
- rubyflow 105 A gitified copy of Peter Cooper's Rubyflow website
- slugged 92 Super simple slugs for ActiveRecord 3+, with slug history. Formerly known as Pseudocephalopod.