What programming languages have client libraries supported by Google?
The Java, .NET, Python and Objective-C client libraries are officially supported by Google. In addition, our partner Zend has written a PHP client library. Using these libraries, you can construct Google Data protocol requests, send them to a service, and process server responses. There is also a JavaScript client library that currently only supports Blogger, Calendar, and Google Contacts. If you write a client library in a language other than Java, .Net, Python or Objective-C, and would like to share with the Data API developer community, post in the Google Data APIs discussion group. We would love to hear from you!