Twilio - Brings voice and messaging to your web and mobile applications.
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.
Plivo - Plivo simplifies your customer engagement.
code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.