The WebPurify module provides developers an easy to use interface to the WebPurify REST API.
It also provides multiple filtering options using this interface, right out of the box. You have the option of blocking profane nodes/comments, replacing expletives upon submission (via input filter), or not doing any filtering at all.
This module is free, but the WebPurify service is a paid subscription service. Please see the WebPurify website for details.