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="20220509150231|Muon_detector_sketch.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="DIRCVoltagesSpring2019.png" timestamp="2023-01-27T15:41:26Z" user="Jrsteven" url="https://halldweb.jlab.org/hdops/wiki/images/9/9c/DIRCVoltagesSpring2019.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:DIRCVoltagesSpring2019.png" ns="6" title="File:DIRCVoltagesSpring2019.png" />
      <img name="Ccal_environment.png" timestamp="2022-11-29T00:08:05Z" user="Somov" url="https://halldweb.jlab.org/hdops/wiki/images/2/2f/Ccal_environment.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Ccal_environment.png" ns="6" title="File:Ccal environment.png" />
      <img name="Ccal_hv_led.png" timestamp="2022-11-28T23:46:58Z" user="Somov" url="https://halldweb.jlab.org/hdops/wiki/images/a/ae/Ccal_hv_led.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Ccal_hv_led.png" ns="6" title="File:Ccal hv led.png" />
      <img name="Ccal_hv.png" timestamp="2022-11-28T23:46:45Z" user="Somov" url="https://halldweb.jlab.org/hdops/wiki/images/5/51/Ccal_hv.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Ccal_hv.png" ns="6" title="File:Ccal hv.png" />
      <img name="Profiller_epics_screen.jpg" timestamp="2022-07-09T15:10:51Z" user="Hovanes" url="https://halldweb.jlab.org/hdops/wiki/images/d/d2/Profiller_epics_screen.jpg" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Profiller_epics_screen.jpg" ns="6" title="File:Profiller epics screen.jpg" />
      <img name="HallD_U1-1.jpeg" timestamp="2022-07-01T14:57:35Z" user="Dalton" url="https://halldweb.jlab.org/hdops/wiki/images/e/e3/HallD_U1-1.jpeg" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:HallD_U1-1.jpeg" ns="6" title="File:HallD U1-1.jpeg" />
      <img name="Screenshot_CDC_HV_GUI_AI.png" timestamp="2022-06-29T20:13:32Z" user="Njarvis" url="https://halldweb.jlab.org/hdops/wiki/images/7/7d/Screenshot_CDC_HV_GUI_AI.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Screenshot_CDC_HV_GUI_AI.png" ns="6" title="File:Screenshot CDC HV GUI AI.png" />
      <img name="ScanOverview_CSS_GUI.gif" timestamp="2022-06-10T17:06:37Z" user="Hovanes" url="https://halldweb.jlab.org/hdops/wiki/images/2/27/ScanOverview_CSS_GUI.gif" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:ScanOverview_CSS_GUI.gif" ns="6" title="File:ScanOverview CSS GUI.gif" />
      <img name="ScanAnalysis_ROOT_GUI.png" timestamp="2022-06-10T15:39:24Z" user="Hovanes" url="https://halldweb.jlab.org/hdops/wiki/images/b/be/ScanAnalysis_ROOT_GUI.png" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:ScanAnalysis_ROOT_GUI.png" ns="6" title="File:ScanAnalysis ROOT GUI.png" />
      <img name="Lead_target.gif" timestamp="2022-06-10T14:05:13Z" user="Zihlmann" url="https://halldweb.jlab.org/hdops/wiki/images/3/34/Lead_target.gif" descriptionurl="https://halldweb.jlab.org/hdops/wiki/index.php/File:Lead_target.gif" ns="6" title="File:Lead target.gif" />
    </allimages>
  </query>
</api>