The Microsoft Intelligent Kiosk C# Sample Code by Microsoft provides examples to use Microsoft Cognitive Services. It includes Automatic Photo Capture, Bing News Analytics, Emotion Recognition, Face Playground, and Realtime Video Insights.
PeopleBrowsr is another “noise to signal” processor of the social media tidal wave. The Research.ly platform they provide is impressive and engaging. I had to pry myself away from it. It is a tool to answer the question, "who in this social media landscape is relevant on this topic?" but that is just the beginning. The PeopleBrowsr API is a pay to play way to gain social media intelligence.
Affectiva's emotional measurement API has been around for a couple of years now. Affectiva has seen adoption by marketers, publishers, gaming companies, and chat services. However, Affectiva believes it can greatly expand the use case scenarios by offering its service at no charge to startups.