The API.AI .NET SDK by API.AI aims to simplify API integration features of natural language processing into new applications. Resources include a programming interface to make text and voice requests to the API.AI. Additional resources could be useful to add usages to a module, add field to a class, and initialize object with Keys. See how JSON.NET helped with parsing implementation at http://www.newtonsoft.com/json
Access to software that performs complex operations has been, and can still be, costly. Paying for expensive licenses can mean an alternative solution has to be sought or worse still, a feature won't be developed at all. Thanks to virtualization and a many other cloud features, we've seen these complex operations offered as services at a fraction of the cost. One such complex operation is that of facial recognition. This software hasn't seemed accessible at all with only applications such as Google Picasa, Apple's iPhoto, Facebook and more recently XBox Kinect being the most obvious examples where it has been used. These are big companies with big money to spend. This now changes as Face.com is offering a free to use face recognition API for photos.