Instamojo Ruby library - Assists you to programmatically create, edit and delete offers on Instamojo. Also supports listing, updation and details of Payments, Payments Requests and Refunds.

IPAddress2 is a Ruby library designed to make manipulation of IPv4 and IPv6 addresses both powerful and simple. It maintains a layer of compatibility with Ruby's own IPAddr, while addressing many of its issues.

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Simple interface for the itunes search api will return results as array of results objects and offer reasonable accessor methods variables

Carrier IP Address List for jpmobile

An HTTP client designed for use with JRuby in a threaded environment

ActiveRecord support for mapping complex documents in a single RDBMS row via JSON serialization.

Katana is a wrapper for the Heroku gem to make multi-environment deployments simple.

Use Keytar to automatically generate keys based on class name instead of cluttering model definitions with tons of redundant key method declarations.

kindai.rb is kindai digital library downloader.

K-means clustering

Including stuff for HTTP, SSH and much more.

minimalistic configuration reader

This gem helps you to track key indicators in your Rails app.

KyotoTycoon client for Ruby

Ruby framework for integration with Leadsquared. Leadsquared API: http://apidocs.leadsquared.com/

A simple Ruby client for the leancloud.cn REST API

Various tools for OTU clustering

This gem helps doing LEFT JOIN's between ActiveRecord associations

API library to allow you to connect and submit messages and actions to your LessNeglect project account