The Bandwidth PHP SDK by Bandwidth provides users with tools that assist with using the Bandwidth API. Some of these include: SMS Auto Replies, Basic and Advanced Conference, Call Transfers, and more. The Bandwidth API allows users to make calls to get information about an account, get a list of transactions made on an account, as well as calls for phone numbers, messages, calls, media, applications, errors, and other resources.
Out of a beige windowless office in Chicago comes a product that just might revolutionize what you thought was possible on the web. X-Stream.ly is a pure play API service offering low-latency high throughput real time messaging with no server side coding required. The x-stream.ly API is a pretty competitive offering in the real time API space.
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.