Probably the most complex Ruby wrapper for the Yo app (justyo.co) that recently raised $1 million dollars.

koreha yoshiken no gem desuyo

This gem contains the tools you need to test your Ruby back-end integration.

Yotpo API integration gem

Yotsuba facilitates getting download links from the DomDomSoft Anime Downloader server.

Amazing

Simple AOP library for Ruby.

YouCanBook.Me API Wrapper

Command line executable for youdao web dictionary.

A http://fanyi.youdao.com api library for Ruby.

Translate using youdao

iframe tag generator for YouTube video url

A Ruby wrapper for the Youku v2 API

A library for use with YourBase that will enable using Skipper in the CI

Determine connectivity, battery and connection speed for your device.

Make downloads of video from Youtube

Yousign API Documentation Ruby Gem

Downloads videos youtube to your local

JetBrains youTrack Rest API Client in Ruby

A simple wrapper for create issues to youtrack through exception notification