You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="CCF06-Staff|1335" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1309" ns="0" title="Ubuntu Dinner" />
      <page pageid="1335" ns="0" title="CC-Festival 2006" />
      <page pageid="1339" ns="0" title="CCF06-Cercasi Artisti" />
      <page pageid="1422" ns="0" title="CC-Festival 2007" />
      <page pageid="1714" ns="0" title="CC-Festival" />
      <page pageid="1715" ns="0" title="CCF08-Unleash" />
      <page pageid="3452" ns="10" title="Template:Infobox Team" />
    </pages>
  </query>
</api>