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Authenticating to the Book Search service

You can access both public and private feeds using the Book Search Data API. Public feeds don't require any authentication, but they are read-only. If you want to modify user libraries, submit reviews or ratings, or add labels, then your client needs to authenticate before requesting private feeds. It can authenticate using either of two approaches: AuthSub proxy authentication or ClientLogin username/password authentication. Please refer to the Authentication section in the PHP Developer's Guide for more detail.

Zend Framework