The Saplo Text Analysis PHP SDK by Saplo allows API communication to access text analytics capabilities. Saplo is now Strossle, a web services that detects data to personalize content experiences. Even though the name of the company has changed, Saplo API and its libraries remain the same for continuous development.
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.
TiKL, maker of mobile apps Talkray and Touch to Talk, has announced the Talkray API that allows developers to integrate Talkray functionality with third party apps and platforms. The Talkray API enables one on one or group chat, group calls, push notifications, file transfer, and more in a cloud based platform. Although the API can integrate with a wide variety of apps, TiKL expects the largest group of adopters to come from the gaming industry. Accordingly, the API was announced at this year's Game Developers Conference.
If you've ever wanted to know what's happening with your web site as it's happening, you may want to take a look at real-time web site analytics provider Chartbeat. It's a new and very slick service that provides a rich set of real-time analytics. They offer a range of useful tools like their Real-time Dashboard (shown below), traffic alerts (ex: get an email if you've got an above average burst of site visitors), and their API (our chartbeat API Profile).