The Microsoft Cognitive Services Language Understanding Bot Builder NodeJS Sample Code by Microsoft demonstrates how to integrate bots with language features. It provides a getting started guide with HTTP service, code highlights, and entity recognition.
Now I don’t have a master’s degree in Natural language processing, and you just might need one to get your hands dirty with this API. I see the text-processing.com API as offering a mid-level utility for incorporation in a web app. You might take text samples from your source, feed them through the Text-Processing API and analyze those results a bit further before presenting anything to your user.