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.
AOL is now offering developers who create applications using the Open AIM API the opportunity to make money. AIM Money is a new revenue-share platform where developers profit from ads they embed into their Open AIM applications.