Zend_Service is an abstract class which serves as a foundation for web service implementations (e.g. XML-RPC).

Zend_Service offers support for any REST-based web service through Zend_Service_Rest.

In addition to being able to extend the Zend_Service and use Zend_Service_Rest for REST-based web services, Zend also provides support for popular web services such as Amazon, Flickr, and Yahoo!. More may be added in the near future.