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="20180412134313|20180329_105759nb.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="200px-EU_food_contact_material_symbol.svg.png" timestamp="2018-04-12T13:49:42Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/7/7f/200px-EU_food_contact_material_symbol.svg.png" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:200px-EU_food_contact_material_symbol.svg.png" ns="6" title="File:200px-EU food contact material symbol.svg.png" />
      <img name="20180329_110151nb.jpg" timestamp="2018-04-12T13:45:06Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/e/e1/20180329_110151nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_110151nb.jpg" ns="6" title="File:20180329 110151nb.jpg" />
      <img name="20180329_110129nb.jpg" timestamp="2018-04-12T13:44:56Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/6/65/20180329_110129nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_110129nb.jpg" ns="6" title="File:20180329 110129nb.jpg" />
      <img name="20180329_110117nb.jpg" timestamp="2018-04-12T13:44:44Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/b/b1/20180329_110117nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_110117nb.jpg" ns="6" title="File:20180329 110117nb.jpg" />
      <img name="20180329_110010nb.jpg" timestamp="2018-04-12T13:44:32Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/0/05/20180329_110010nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_110010nb.jpg" ns="6" title="File:20180329 110010nb.jpg" />
      <img name="20180329_105946nb.jpg" timestamp="2018-04-12T13:44:21Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/e/e4/20180329_105946nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_105946nb.jpg" ns="6" title="File:20180329 105946nb.jpg" />
      <img name="20180329_105938nb.jpg" timestamp="2018-04-12T13:44:05Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/2/2c/20180329_105938nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_105938nb.jpg" ns="6" title="File:20180329 105938nb.jpg" />
      <img name="20180329_105933nb.jpg" timestamp="2018-04-12T13:43:53Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/f/f0/20180329_105933nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_105933nb.jpg" ns="6" title="File:20180329 105933nb.jpg" />
      <img name="20180329_105923nb.jpg" timestamp="2018-04-12T13:43:40Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/4/43/20180329_105923nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_105923nb.jpg" ns="6" title="File:20180329 105923nb.jpg" />
      <img name="20180329_105836nb.jpg" timestamp="2018-04-12T13:43:27Z" user="Rgbits" url="http://www.maxcard.bg/en/wiki/images/0/0d/20180329_105836nb.jpg" descriptionurl="http://www.maxcard.bg/en/wiki/index.php?title=File:20180329_105836nb.jpg" ns="6" title="File:20180329 105836nb.jpg" />
    </allimages>
  </query>
</api>