Talkray is a mobile application created by TiKL, a company also known for its TiKL Touch To Talk walkie-talkie application for Android and iPhone. Talkray is the company's broader communications app that allows users to make phone calls as well as send and receive text messages and photos. Talkray's API makes it possible for developers to add things like voice calling and text chats to their applications.
As a translation service powered by human translators and accessed via an API, Gengo has a fairly unique business model—an API-as-product that uses the API to engage a human workforce to carry out sophisticated business processes.
Microsoft has just announced the availability of the Microsoft Translator Hub for commercial use, including access to the Microsoft Translator API. Microsoft Translator Hub is built on Windows Azure, and provides tools for businesses to "build, improve, and deploy customized automatic language translation systems."