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>
<allfileusages gafcontinue="Gplv2-logo.png|155" />
</query-continue>
<query>
<pages>
<page pageid="81" ns="0" title="GNU General Public License version 2" />
<page pageid="122" ns="0" title="GNU General Public License" />
<page pageid="283" ns="0" title="Статья:GNU GPL 3 человеческим языком" />
<page pageid="344" ns="0" title="Condor Public License version 1.0" />
<page pageid="346" ns="0" title="Condor Public License version 1.1" />
<page pageid="440" ns="0" title="DrWeb 2011 License" />
<page pageid="455" ns="0" title="GExperts License" />
<page pageid="583" ns="0" title="Google maps api license" />
</pages>
</query>
</api>