The OneSignal Node SDK by SeVeNDuS is a node.js client library for use with the OneSignal Rest API. The OneSignal REST API allows developers to access the functionality of OneSignal for integration with other websites and applications. OneSignal is a push notification service for mobile and web applications and websites.
Payleven, the Square equivalent for the world outside of the US, has launched an API to complement its mobile payment device. Prior to the API, use of Payleven's mobile payment device required downloading the Payleven app (similar to Square's current model). However, the API allows developers to integrate Payleven's functionality within third party apps.
StackMob, a leading cloud-based, mobile Platform as a Service (PaaS) provider, has just announced the launch of the StackMob Marketplace, a developer-ready API modules online store. In addition, StackMob is now offering a new pricing model that offers free StackMob API calls to developers.
Khronos Group, open standards consortium behind some of today's most innovative technologies, has announced a new initiative to develop an open, royalty-free API for advanced, low-level control of mobile and embedded cameras and sensors. Khronos created the Camera working group to develop the API and is currently recruiting participants. All participants may contribute to the standard and the group will collaborate with other working groups to enhance its effectiveness.