Address Book XML/JSON API Developer Guide
Copyright © 2009, Yahoo! Inc.
Abstract
The Address Book Developer Guide contains information for Address Book developers.
For developer assistance with Address Book, join the Address Book Yahoo! Group for Developers.
Note
The Address Book API has been deprecated. The API will still be up and running, but no active development will be supported on this API. Therefore, Yahoo! strongly recommends that you use the Contacts API, which is fully in parity with this API and has more features that you can leverage.