KCC's Gem-based theme for building jekyll sites.

An implementation of SHA3 in pure Ruby.

See http://github.com/pitluga/keepassx

Kender is a library of rake tasks that provides a consistent framework for continuous integration (CI).

A lightweight Ruby web framework.

Client gem for keratin/authn service.

Binding to libkernaux - auxiliary library for kernel development.

This library provides a easy way to access the system keyring service from ruby

This gem allows you to interact with java key stores in pure ruby. Keys and Certificates are represented as OpenSSL objects

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

https://github.com/bajratech/khalti-ruby

it said optional

This gem packages up Kibana 3 into a Sinatra app that can be used stand alone, or with Rails.

The front-end library for clean HTML and fast websites.

Kiev is a logging tool aimed at distributed environments. It logs to JSON, while providing human-readable output in development mode. It integrates nicely with Rails, Sinatra and other Rack-based frameworks, Sidekiq, Que, HTTParty, Her and other Faraday-based HTTP clients.

Base classes to write plugins.

An API client library for Kill Bill.

Modern web scraping framework written in Ruby and based on Capybara/Nokogiri

Ruby SDK for Kinetic Data application APIs

kintone API client for Ruby.