A respond_to style Rails block for baked-in web service support in Sinatra

SPARQL Implements SPARQL 1.1 Query, Update and result formats for the Ruby RDF.rb library suite.

Rack middleware which will look up your assets manifest file and redirect a request with no digest in the file name to the version with digest in the file name.

Simple router for web applications

Testbot is a test distribution tool that works with Rails, RSpec, RSpec2, Test::Unit and Cucumber.

OAuth 2.0 strategies for Warden

Combined events calendar for Google Calendar, iCal, and friends.

The unofficial X-Ray Tracing SDK for Ruby.

Ruby gem and command-line utility for conversion of DOI metadata from and to different metadata formats, including schema.org.

capybara-envjs is a Capybara driver for the envjs gem. It is similar to Capybara's rack-test driver in that it runs tests against your rack application directly but fully supports javascript in your application.

CarrierWave storage for Dropbox

Embargoed blocks all visitors from Russia from your Rails application, displaying a pro-Ukraine message instead.

Authorize your Grape API with CanCan

Gem for auth in grape via doorkeeper.

Use Jbuilder in Grape

Grape swagger adapter to support representable object parsing

Makes SASS less of a hassle on read-only filesystems by compiling and serving it up for you. Rails3 compatible from Papino's fork on Github.

A simple way to check your app heart.

A image processing proxy server, written in Ruby as a Rack application. Requires ImageMagick.

A set of handlers included by default in Lita.