The Twilio Ruby Helper Library is a gem that allows Ruby developers to issue requests to the Twilio API and generate TwiML. Quickstart tutorials are available to help developers get started with the library.
MiniFB is a small, lightweight Ruby library for interacting with the Facebook API. A demo application that uses Rails with MiniFB is provided to show the library in action. MiniFB is offered by Appoxy, a web application development company.
Koala is a Ruby library for Facebook that allows developers to access the Facebook Graph API, REST API, OAuth validation, realtime updates, and test users. It supports JRuby, Rubinius, and REE in addition to multiple versions of vanilla Ruby.