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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="Baden-Baden_Casino_18.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="Baden-Baden_01_Stadtansicht.jpg" timestamp="2016-06-17T11:59:51Z" url="https://mfi2016.org/images/c/c6/Baden-Baden_01_Stadtansicht.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_01_Stadtansicht.jpg" ns="6" title="File:Baden-Baden 01 Stadtansicht.jpg" />
      <img name="Baden-Baden_03_Stadtansicht.jpg" timestamp="2016-06-17T12:01:01Z" url="https://mfi2016.org/images/0/0e/Baden-Baden_03_Stadtansicht.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_03_Stadtansicht.jpg" ns="6" title="File:Baden-Baden 03 Stadtansicht.jpg" />
      <img name="Baden-Baden_04_Kurhaus.jpg" timestamp="2016-07-11T13:58:30Z" url="https://mfi2016.org/images/f/f0/Baden-Baden_04_Kurhaus.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_04_Kurhaus.jpg" ns="6" title="File:Baden-Baden 04 Kurhaus.jpg" />
      <img name="Baden-Baden_07_Casino.jpg" timestamp="2016-07-11T13:58:51Z" url="https://mfi2016.org/images/7/77/Baden-Baden_07_Casino.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_07_Casino.jpg" ns="6" title="File:Baden-Baden 07 Casino.jpg" />
      <img name="Baden-Baden_09_Lichtentaler_Allee.jpg" timestamp="2016-07-11T14:27:41Z" url="https://mfi2016.org/images/3/3f/Baden-Baden_09_Lichtentaler_Allee.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_09_Lichtentaler_Allee.jpg" ns="6" title="File:Baden-Baden 09 Lichtentaler Allee.jpg" />
      <img name="Baden-Baden_10_Lichtentaler_Allee.jpg" timestamp="2016-07-11T14:28:05Z" url="https://mfi2016.org/images/1/1f/Baden-Baden_10_Lichtentaler_Allee.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_10_Lichtentaler_Allee.jpg" ns="6" title="File:Baden-Baden 10 Lichtentaler Allee.jpg" />
      <img name="Baden-Baden_11_Caracalla.jpg" timestamp="2016-07-11T14:28:32Z" url="https://mfi2016.org/images/d/d4/Baden-Baden_11_Caracalla.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_11_Caracalla.jpg" ns="6" title="File:Baden-Baden 11 Caracalla.jpg" />
      <img name="Baden-Baden_13_Museum_Frieder_Burda.jpg" timestamp="2016-07-11T14:28:56Z" url="https://mfi2016.org/images/2/21/Baden-Baden_13_Museum_Frieder_Burda.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_13_Museum_Frieder_Burda.jpg" ns="6" title="File:Baden-Baden 13 Museum Frieder Burda.jpg" />
      <img name="Baden-Baden_14_Theater.jpg" timestamp="2016-07-11T14:29:18Z" url="https://mfi2016.org/images/8/83/Baden-Baden_14_Theater.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_14_Theater.jpg" ns="6" title="File:Baden-Baden 14 Theater.jpg" />
      <img name="Baden-Baden_Caracalla_02.jpg" timestamp="2016-07-11T14:29:44Z" url="https://mfi2016.org/images/e/ef/Baden-Baden_Caracalla_02.jpg" descriptionurl="https://mfi2016.org/File:Baden-Baden_Caracalla_02.jpg" ns="6" title="File:Baden-Baden Caracalla 02.jpg" />
    </allimages>
  </query>
</api>