The Sphere.Io PHP SDK by Commercetools permits API communication, offering installation and integration guides. On GitHub, developers can find a preparations section to work with Mac OS X, Linux, and Windows. Full PHP documentation available.
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.