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="Update Java" />
  </query-continue>
  <query>
    <pages>
      <page pageid="76" ns="0" title="The port numbers for software licenses" touched="2015-11-16T16:17:11Z" lastrevid="2048" counter="21051" length="495" />
      <page pageid="250" ns="0" title="TrueCrypt" touched="2014-09-17T21:06:11Z" lastrevid="1851" counter="10116" length="4522" />
      <page pageid="224" ns="0" title="University Vienna Software" touched="2010-01-18T21:09:24Z" lastrevid="1131" counter="10894" length="1293" />
      <page pageid="228" ns="0" title="Unix/Linux File Backup" touched="2010-08-16T13:59:10Z" lastrevid="1151" counter="4761" length="21" new="" />
    </pages>
  </query>
</api>