Wikipedia
IPBWI
IPBWI (Invision Power Board Website Integration) allows you to create PHP applications that can interact with Invision Power Board (IPB). IPBWI utilizes and extends IPS' REST API.
IPBWI is based upon the already existent IPB SDK class and picks up on the function that the project used to provide. The latest versions of Invision Power Board are no longer supported by IPB SDK and therefore IPBWI must be used. IPBWI 4 has been completely rewritten.