WSDL (Appointments+ booking info sent into WDSL Soap)

Hey guys,
Is there a list of Appointments+ Filters & Hooks? I am trying to write a connector (probably a Wordpress plugin) which sends Appointments+ booking information into a WSDL web service via PHP Soapclient. I just need to figure out where I need to be listening for new bookings which go into Appointments+ - either via a Filter or Hook I'd imagine? Or do you have another way to listen for this type of thing?