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="LBC/Canned_responses|1655" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page" />
      <page pageid="1294" ns="2" title="User:Andy/Animal rights FAQ" />
      <page pageid="1326" ns="6" title="File:Net4801 front case.jpg" />
      <page pageid="1327" ns="0" title="pride.strugglers.net" />
      <page pageid="1370" ns="2" title="User:Matt" />
      <page pageid="1386" ns="0" title="Ill-informed users contest" />
      <page pageid="1427" ns="0" title="bitfolk" />
      <page pageid="1647" ns="0" title="LBC/Please cancel" />
      <page pageid="1675" ns="0" title="Films I have made Jenny watch" />
      <page pageid="1864" ns="0" title="Film and TV I have made Jenny watch" />
    </pages>
  </query>
</api>