The Twilio-Rails Ruby Library by Hemant Bhanoo is a Ruby Rails Library for the Twilio API. This library and it's code helps make develop Twilio applications easier in rails. Twilio provides a simple hosted API and markup language for businesses to quickly build scalable, reliable and advanced voice and SMS communications applications.
Message brokers are a valuable tool for handling asynchronous communications directly between servers. This tutorial on the Nordic APIs Blog discusses the use of message brokers to create choreographed microservices that may offer benefits over those based on the HTTP protocol.
The RESTful Ei3 API is aimed at bringing its machine to machine communications to manufacturers looking to remotely control their machines, maximize efficiency, save energy, and cut back on green house gasses.