Im trying to integrate remote JSON data in Drupal, but the Piwik API seems to miss something here. It looks like the piwik server needs to help us on cross domain requests (http://bob.pythonmac.org/archives/2005/12/05/remote-json-jsonp/).
Here you can see how this works with Flickr:
Are you able to add such a jsoncallback param, too or is it already available, but I cannot find it?
good suggestion, implemented.
See documentation on http://dev.piwik.org/trac/wiki/API/Reference