uirusu is tool and REST library for interacting with Virustotal.org

Ultracache reduces computational costs occur from dynamic attributes by caching them into Redis

A universal interface to grab contact list information from various providers including Yahoo, AOL, Gmail, Hotmail, and Plaxo.

Umbreo Command Line Interface

umka has fixed a problem in the maccman's juggernaut gem, and this is just a build for that gem, https://github.com/umka/juggernaut_gem

Unbounce API

Light wrapper around the Unbounce API.

Small utility who checks HTTP status of websites, and store the results in Redis.

The Undo restores previous object state. Lightweight, modular and very flexible library that works as with Rails, as with plain Ruby.

Library for working with API UniEnv

Official UniGo Gem to Interact with UniGo Api in native Ruby

Based on official UniGo Gem https://gitflic.ru/project/unisender/unigo-ruby

Unified logger that writes to a log file, redis queue, mongo collection, and hoptoad.

Official UniOne Gem to Interact with UniOne Api in native Ruby

Gem that provide access to unisender.com.ua api

Use the http://unshort.me API to unshort URL from many providers.

A Ruby API library for the Mandrill email as a service platform. Only updated.

UpGuard Core SDK for Ruby

Allow easy access to the Uploadcare.com API

UploadJuicer juices up your images!