This plugin provides native instrumentation for monitoring Consul, including: Consul server service and cluster health, and querying the Consul API to check for passing/critical services.

This plugin provides native DNS instrumentation for monitoring, including: record resolution

Sensu plugins for Java

This plugin provides native Puppet instrumentation for monitoring and metrics collection for the last Puppet run.

This plugin provides native uptime instrumentation for metrics collection, including: uptime and idletime metrics

Small DSL to create ActiveRecord (>= 3.1) attribute predicates without writing SQL.

Use solrizer to populate solr indexes. You can run solrizer from within your app, using the provided rake tasks, or as a JMS listener

Command line tool for updating Android apps and their metadata on the Google Play Store

Gem to use the SurveyGizmo.com REST API, v3+

Tickle is a date/time helper gem to help parse natural language into a recurring pattern. Tickle is designed to be a compliment of Chronic and can interpret things such as "every 2 days, every Sunday, Sundays, Weekly, etc.

And here would be description.

The transloadit-rails gem allows you to automate uploading files through the Transloadit REST API

library for interacting with packagecloud.io

Pure ruby general purpose router with interfaces for rails, rack, email or choose your own adventure

An ORM using the Data Mapper pattern, specifically built to solve Digital Repository use cases.

Use Watir with RSpec with ease.

Ruby wrapper for the Weaviate.io API

Abstract Method is a tiny library enabling you to define abstract methods in Ruby classes and modules.

API consumable error messages with ActiveModel::Errors drop-in compatibility.

ActiveTriples provides tools for modeling RDF as discrete resources.