Atama is a UK based company that focuses on developing app-enabled products that work with smartphones. Current products include Seasame, a wireless lock that automatically locks your Mac computer when you walk away, and Kilo, a scale that tracks weight and BMI.
Atama offers a REST based API for app developers. The API provides access to the atama cloud, which stores information about users and events. The API uses OAuth 2.0 and supports JSON and XML formats.