You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages gapfrom="Travel tips" />
  </query-continue>
  <query>
    <pages>
      <page pageid="5" ns="0" title="Templates:missinglink" touched="2011-02-17T15:03:21Z" lastrevid="24" counter="764" length="38" />
      <page pageid="434" ns="0" title="Time zones" touched="2011-05-03T13:58:52Z" lastrevid="1232" counter="14133" length="542" />
      <page pageid="325" ns="0" title="Training and Networking of those active in youth work and youth organisations" touched="2011-05-26T14:25:45Z" lastrevid="1395" counter="10667" length="5686" />
      <page pageid="449" ns="0" title="Translated User Guides" touched="2011-05-03T13:58:52Z" lastrevid="1243" counter="4904" length="3160" />
    </pages>
  </query>
</api>