Store the dominant color of the images when you upload them to your Rails application using the CarrierWave gem.

Simply optimize CarrierWave images via image_optim

Qcloud COS Storage support for CarrierWave

Riak Storage support for CarrierWave

TinyPNG support for CarrierWave

An authorization library that supports access control models like ACL, RBAC, ABAC in Ruby

Transforms string letter case to camel, snake,dash and underscore without activesupport dependencies. Forked from https://github.com/rails-api/case_transform

This gem can be used to allow the CASino backend to authenticate against an MongoDB server using Moped.

CQL Interface to Cassandra

Simple whole data validation via ActiveRecord

Ruby library for working with Google's Cayley graph database

With Caze it's easy to define use cases and entry points.

Bare wrapper around Cbc Linear Programming Solver made with SWIG

Component-based Ruby/Rails applications use local 'path' gem references to structure an application. This gem provides utilities for printing and exporting such dependencies.

Braspag: brazilian gateway, agnostic, support all features in braspag

A test runner that optimizes the tests it runs based on the recent changes of your application. Makes use of #cbra dependencies to infer which parts of the application are definitely unaffected. Science! BOOM!

CBS Sports' (now deprecated, but still available) v3 Fantasy Sports API has lots of useful data about your league that you need an API token to programatically access.

CCP

format/send CEF logs via API+syslog or client program

Cello is a framework that allows automate acceptance tests using page-object