The rigths management libraries available today are all based on the principle: everything is open and you close it explicitely. Fortress is immediately closing access to every actions of every controllers when you install it. It's then up to you to open the allowed actions.

Provides an easy way to interact with the 42 API in any kind of application.

Parser for Forward Calendar XML files

Fosbury (http://www.fosbury.co) API client for Ruby. Fosbury is a platform to create and manage iOS Passbook and Google Wallet coupon campaign and loyalty programs.

FoundationApi is a framework for communicating with FoundationApi Foundation from RubyOnRails

The command line tool used to manage the Founder's Template

Founders Toolkit for Rails

Fourth Dimensional is an event sourcing library to account for the state of a system in relation to time.

Gem to make statistics sending from Rails applications simple and efficient as possible

A Modern [F]ront End on [Rails] and Webpack

Allows to quickly build well structured complex Ruby apps.

Piston makes it easy to merge vendor branches into your own repository, without worrying about which revisions were grabbed or not. Piston will also keep your local changes in addition to the remote changes.

Makes http fun! Also, makes consuming restful web services dead easy.

Client library for accessing Fraudpointer REST API

API wrapper for FraudRecord.com

Rubygem for querying Federal Reserve Banks' Fedwire & FedACH participants

Expressive, Rack-loving web application DSL.

Integrate Sequel with Rails 3

A small ruby library for accessing information from http://freeagentcentral.com

Ruby wrapper for the Freebase.com API that makes interacting with freebase.com in your Ruby on Rails application as easy as using Active Record. Freebase is a free, collaborative semantic database.