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>
    <allimages aicontinue="Gimp-curves.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Blur_dialog1.png" timestamp="2014-01-26T19:31:42Z" url="https://wiki.gimp.org/images/Blur_dialog1.png" descriptionurl="https://wiki.gimp.org/wiki/File:Blur_dialog1.png" ns="6" title="File:Blur dialog1.png" />
      <img name="Blur_dialog2.png" timestamp="2014-01-26T19:32:03Z" url="https://wiki.gimp.org/images/Blur_dialog2.png" descriptionurl="https://wiki.gimp.org/wiki/File:Blur_dialog2.png" ns="6" title="File:Blur dialog2.png" />
      <img name="Blur_select.png" timestamp="2014-01-26T19:32:20Z" url="https://wiki.gimp.org/images/Blur_select.png" descriptionurl="https://wiki.gimp.org/wiki/File:Blur_select.png" ns="6" title="File:Blur select.png" />
      <img name="Dave_Neary.jpg" timestamp="2014-01-25T19:42:22Z" url="https://wiki.gimp.org/images/Dave_Neary.jpg" descriptionurl="https://wiki.gimp.org/wiki/File:Dave_Neary.jpg" ns="6" title="File:Dave Neary.jpg" />
      <img name="Depth_of_control_point.png" timestamp="2013-07-15T07:04:16Z" url="https://wiki.gimp.org/images/Depth_of_control_point.png" descriptionurl="https://wiki.gimp.org/wiki/File:Depth_of_control_point.png" ns="6" title="File:Depth of control point.png" />
      <img name="Developer-left.png" timestamp="2014-01-31T11:35:22Z" url="https://wiki.gimp.org/images/Developer-left.png" descriptionurl="https://wiki.gimp.org/wiki/File:Developer-left.png" ns="6" title="File:Developer-left.png" />
      <img name="Developer-right.png" timestamp="2014-01-31T11:35:43Z" url="https://wiki.gimp.org/images/Developer-right.png" descriptionurl="https://wiki.gimp.org/wiki/File:Developer-right.png" ns="6" title="File:Developer-right.png" />
      <img name="Flood_Algorithm_-_Formula_1.gif" timestamp="2016-04-08T09:28:41Z" url="https://wiki.gimp.org/images/Flood_Algorithm_-_Formula_1.gif" descriptionurl="https://wiki.gimp.org/wiki/File:Flood_Algorithm_-_Formula_1.gif" ns="6" title="File:Flood Algorithm - Formula 1.gif" />
      <img name="Flood_Algorithm_-_Formula_2.gif" timestamp="2016-04-08T12:21:17Z" url="https://wiki.gimp.org/images/Flood_Algorithm_-_Formula_2.gif" descriptionurl="https://wiki.gimp.org/wiki/File:Flood_Algorithm_-_Formula_2.gif" ns="6" title="File:Flood Algorithm - Formula 2.gif" />
      <img name="Gimp-2.9.1-screenshot.png" timestamp="2014-01-31T10:46:32Z" url="https://wiki.gimp.org/images/Gimp-2.9.1-screenshot.png" descriptionurl="https://wiki.gimp.org/wiki/File:Gimp-2.9.1-screenshot.png" ns="6" title="File:Gimp-2.9.1-screenshot.png" />
    </allimages>
  </query>
</api>