This official Coinkite library is a Python wrapper for their Bitcoin services API. The library works with Google Apps Engine and normal Python server-side application, and also includes a CLI program for use with cURL and the Coinkite API.
One of the more interesting views given by the directory is a look at what sectors are seeing the most growth in APIs. The directory data model allows for one primary category as well as multiple secondary categories and in this article we take a look at which categories are most represented.
Everybody likes money, but nobody likes the inconvenience of having to visit different sites to manage all their accounts. Redwood City-based Yodlee has been aggregating financial data for its MoneyCenter users and partner companies since 1999, and is now expanding its developer services to include "Accelerator" and "Incubator" programs, both of which augment its existing API offerings.