Piwik Analytics thru Webservice


I am trying to create a Piwik analytics website thru a webservice, we serve our customers with a website and would like to serve them with our version of analytics as well.
We run our databases with customer data (and analytic data) internal, and we use a webservice to connect to those databases.
If I want to make a internal website I can easily call http://analyticsdomain and add the credentials to record data.
But from the outside world this domain is not an existing domain.

Is there a way to create a ASP.NET webservice that catches the Piwik tracked data, and adds it to the analytics database.

An image to explain what I mean: