AFNIC EPP client library.

An extensible EPP client library.

RGP EPP client library.

SecDNS EPP client library.

Smallregistry EPP client library.

Generates a template directory that you can use to build a custom epub. After customizing templates, use bin/gen_epub.rb to create and validate an epub archive.

wrapper command of epubcheck (W3C)

A gem to evaluate mathematical equations. Includes support for variables and functions.

A simple Ruby library that lets you manage your Mountebank test server.

Erlang External Term Format (ETF) for Ruby

Nice error handling

Gitlab integration for Errbit

Jira integration for Errbit.

Generate error pages for Rails applications

Uses the asset pipeline to generate your static error pages.

This gem provides implements instrumentation with Errplane for Rails 2.3.x and 3.x applications.

Errship is a Rails 3.1 engine for rendering error pages inside your layout. It supports i18n, custom exceptions, and Airbrake (Hoptoad) error tracking.

Escher helps you creating secure HTTP requests (for APIs) by signing HTTP(s) requests.

Elasticity provides a higher level abstraction on top of [elasticsearch-ruby](https://github.com/elasticsearch/elasticsearch-ruby) gem

SDK for interacting with the ESP API.