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.
Sixteen APIs have been added to the ProgrammableWeb directory in categories including Payments, Entertainment, Feedback and Writing. Highlights include an API that returns readability scores and an API for software team chat features. Here's a rundown of the latest additions.