The JotForm Python Sample Code by JotForm demonstrates how an API can help to print all forms of a given user, get submission of the latest form, get 100 submissions from the last date, filter forms by submission characteristics, and delete last 50 submissions.
Fifteen APIs have been added to the ProgrammableWeb directory today, in categories including Spam, Travel, Bitcoin, Surveys, and Banking. One highlight today is the Basetrip API, which provides detailed International travel information to users. Have a look at what is new for developers.
GoPollGo is all about creating polls, from running them during presidential debates to coworkers polling each other on where to go for lunch. It has two APIs. One is a public read-only API free to anyone. The other is private, in beta that allows third parties to create polls. Clients such as ESPN, Netflix, Hotels.com, Robert Scoble, AppleInsider and The Weather Channel, use GoPollGo to track opinions on their brands and businesses.
Stack Overflow, the very successful question and answer site for programmers, have now released their own API into public beta. The API actually works with all of the Stack Exchange sites, including serverfault.com and superuser.com, with more sites possibly launching in the future. The API is supported by the site http://stackapps.com.