Description:

Zend_Service_Akismet provides a client for the Akismet API. The
Akismet service is used to determine if incoming data is potentially
spam; it also exposes methods for submitting data as known spam or as
false positives (ham). Originally intended to help categorize and
identify spam for Wordpress, it can be used for any type of data.

Akismet requires an API key for usage. You may get one for signing up
for a WordPress.com account. You do not need to activate a blog;
simply acquiring the account will provide you with the API key.

Additionally, Akismet requires that all requests contain a URL to the
resource for which data is being filtered, and, because of Akismet's
origins in WordPress, this resource is called the blog url. This value
should be passed as the second argument to the constructor, but may be
reset at any time using the setBlogUrl() accessor, or overridden by
specifying a 'blog' key in the various method calls.