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>
    <images gimcontinue="1|Pci-icon.png" />
  </query-continue>
  <query>
    <pages>
      <page pageid="4578" ns="6" title="File:Bug icon.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24442" counter="2220" length="0" new="" />
      <page pageid="4568" ns="6" title="File:Cd icon.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24419" counter="2444" length="0" />
      <page pageid="4577" ns="6" title="File:Code icon.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24441" counter="2531" length="0" />
      <page pageid="4573" ns="6" title="File:Components-icon.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24427" counter="2311" length="0" new="" />
      <page pageid="4576" ns="6" title="File:Contacts icon.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24439" counter="3803" length="0" new="" />
      <page pageid="4572" ns="6" title="File:Faq icon blue.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24426" counter="3148" length="0" />
      <page pageid="2343" ns="6" title="File:Forum.gif" contentmodel="wikitext" pagelanguage="en" touched="2014-03-18T17:49:14Z" lastrevid="6007" counter="18473" length="0" new="" />
      <page pageid="6224" ns="6" title="File:Gearhead smile.png" contentmodel="wikitext" pagelanguage="en" touched="2013-09-11T20:25:05Z" lastrevid="34440" counter="2022" length="0" new="" />
      <page pageid="4567" ns="6" title="File:Howto icon.gif" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24417" counter="2336" length="0" new="" />
      <page pageid="4579" ns="6" title="File:Icon user guide.png" contentmodel="wikitext" pagelanguage="en" touched="2011-08-28T09:07:44Z" lastrevid="24445" counter="3744" length="0" />
    </pages>
  </query>
</api>