Jekyll Jupyter Notebook plugin adds [Jupyter](http://jupyter.org/) Notebook support to Jekyll. You can embed Jupyter Notebooks into your texts.

JSON-RPC 2.0 client and server

Ruby Kernel for IPython

JPush's officially supported Ruby client library for accessing JPush APIs. 极光推送官方支持的 Ruby 版本服务器端 SDK. 相应的 API 文档：http://docs.jpush.io/server/server_overview/

Include jQuery DataTables in asset pipeline with ease

Helpers for validating JSON API payloads

Returns the difference between two JSON files

Jump consistent hash implementation for Ruby

Kubernetes client library for Ruby

Add authentication to applications and secure services with Keycloak

A knife plugin for working with data bags and chef solo

KPeg is a simple PEG library for Ruby. It provides an API as well as native grammar to build the grammar. KPeg strives to provide a simple, powerful API without being too exotic. KPeg supports direct left recursion of rules via the {OMeta memoization}[http://www.vpri.org/pdf/tr2008003_experimenting.pdf] trick.

A kramdown extension for converting Markdown documents to AsciiDoc.

The command line interface to Learn.co.

Liquid performance extension in C

sinatra's little brother

Parse log lines in the logfmt style.

A ruby library for working with Machine Readable Cataloging

Use the same simple commandline api to manage cloud interfaces

A Ruby framework for MediaWiki API manipulation.