- exception_notification 4 Exception Notifier Plugin for Rails
- yelp2 4 Ruby wrapper for the Yelp V2 API (still in beta)
- awesome-usps 3 Submitted Description: A ruby wrapper around the various USPS APIs for generating rates, tracking information, label generation, and address checking.
- activeadmin-mongoid 2 ActiveAdmin hacks to support Mongoid
- active_admin 2 The administration framework for Ruby on Rails applications.