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="Entourage_2004_step7.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="BloodyMaryPsyduck_(1).png" timestamp="2022-02-18T19:25:13Z" url="https://wiki.supranet.net/wiki/images/5/5e/BloodyMaryPsyduck_%281%29.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:BloodyMaryPsyduck_(1).png" ns="6" title="File:BloodyMaryPsyduck (1).png" />
      <img name="Cyberduck1.PNG" timestamp="2017-07-12T19:17:35Z" url="https://wiki.supranet.net/wiki/images/0/0f/Cyberduck1.PNG" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Cyberduck1.PNG" ns="6" title="File:Cyberduck1.PNG" />
      <img name="Entourage_2004_step1.png" timestamp="2008-06-20T16:13:08Z" url="https://wiki.supranet.net/wiki/images/7/7f/Entourage_2004_step1.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step1.png" ns="6" title="File:Entourage 2004 step1.png" />
      <img name="Entourage_2004_step10.png" timestamp="2008-06-20T19:05:14Z" url="https://wiki.supranet.net/wiki/images/b/b6/Entourage_2004_step10.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step10.png" ns="6" title="File:Entourage 2004 step10.png" />
      <img name="Entourage_2004_step11.png" timestamp="2008-06-20T19:10:11Z" url="https://wiki.supranet.net/wiki/images/6/68/Entourage_2004_step11.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step11.png" ns="6" title="File:Entourage 2004 step11.png" />
      <img name="Entourage_2004_step12.png" timestamp="2008-06-20T19:14:11Z" url="https://wiki.supranet.net/wiki/images/7/7a/Entourage_2004_step12.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step12.png" ns="6" title="File:Entourage 2004 step12.png" />
      <img name="Entourage_2004_step2.png" timestamp="2008-06-20T18:05:28Z" url="https://wiki.supranet.net/wiki/images/9/96/Entourage_2004_step2.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step2.png" ns="6" title="File:Entourage 2004 step2.png" />
      <img name="Entourage_2004_step4.png" timestamp="2008-06-20T18:49:43Z" url="https://wiki.supranet.net/wiki/images/5/58/Entourage_2004_step4.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step4.png" ns="6" title="File:Entourage 2004 step4.png" />
      <img name="Entourage_2004_step5.png" timestamp="2008-06-20T18:52:36Z" url="https://wiki.supranet.net/wiki/images/a/aa/Entourage_2004_step5.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step5.png" ns="6" title="File:Entourage 2004 step5.png" />
      <img name="Entourage_2004_step6.png" timestamp="2008-06-20T18:53:02Z" url="https://wiki.supranet.net/wiki/images/9/92/Entourage_2004_step6.png" descriptionurl="https://wiki.supranet.net/wiki/index.php/File:Entourage_2004_step6.png" ns="6" title="File:Entourage 2004 step6.png" />
    </allimages>
  </query>
</api>