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="Circle_green.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="B000_republica_2012_small.jpg" timestamp="2013-02-22T11:59:12Z" url="https://www.pirateparty.gr/wiki/images/5/55/B000_republica_2012_small.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:B000_republica_2012_small.jpg" ns="6" title="Αρχείο:B000 republica 2012 small.jpg" />
      <img name="Badge_graphic.png" timestamp="2013-09-24T18:01:10Z" url="https://www.pirateparty.gr/wiki/images/1/1a/Badge_graphic.png" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Badge_graphic.png" ns="6" title="Αρχείο:Badge graphic.png" />
      <img name="Badge_lock.png" timestamp="2013-09-24T18:00:45Z" url="https://www.pirateparty.gr/wiki/images/e/e0/Badge_lock.png" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Badge_lock.png" ns="6" title="Αρχείο:Badge lock.png" />
      <img name="Banner1.jpg" timestamp="2012-11-27T16:00:20Z" url="https://www.pirateparty.gr/wiki/images/9/96/Banner1.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Banner1.jpg" ns="6" title="Αρχείο:Banner1.jpg" />
      <img name="Be_Swarmwise.jpg" timestamp="2013-02-21T09:35:53Z" url="https://www.pirateparty.gr/wiki/images/0/08/Be_Swarmwise.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Be_Swarmwise.jpg" ns="6" title="Αρχείο:Be Swarmwise.jpg" />
      <img name="C000_350px-Auklet_flock_Shumagins_1986.jpg" timestamp="2013-02-22T12:44:06Z" url="https://www.pirateparty.gr/wiki/images/a/a5/C000_350px-Auklet_flock_Shumagins_1986.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:C000_350px-Auklet_flock_Shumagins_1986.jpg" ns="6" title="Αρχείο:C000 350px-Auklet flock Shumagins 1986.jpg" />
      <img name="Cannabidiol_Limits_T_Cell–Mediated_Chronic_Autoimmune_Myocarditis-Implications_to_Autoimmune_Disorders_and_Organ_Transplantation_sm.pdf" timestamp="2017-05-09T17:30:20Z" url="https://www.pirateparty.gr/wiki/images/b/bd/Cannabidiol_Limits_T_Cell%E2%80%93Mediated_Chronic_Autoimmune_Myocarditis-Implications_to_Autoimmune_Disorders_and_Organ_Transplantation_sm.pdf" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Cannabidiol_Limits_T_Cell%E2%80%93Mediated_Chronic_Autoimmune_Myocarditis-Implications_to_Autoimmune_Disorders_and_Organ_Transplantation_sm.pdf" ns="6" title="Αρχείο:Cannabidiol Limits T Cell–Mediated Chronic Autoimmune Myocarditis-Implications to Autoimmune Disorders and Organ Transplantation sm.pdf" />
      <img name="Caseforcopyrightreform.jpg" timestamp="2012-12-16T11:50:58Z" url="https://www.pirateparty.gr/wiki/images/b/bb/Caseforcopyrightreform.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Caseforcopyrightreform.jpg" ns="6" title="Αρχείο:Caseforcopyrightreform.jpg" />
      <img name="Cc-by-nc-sa.jpg" timestamp="2014-06-19T11:56:34Z" url="https://www.pirateparty.gr/wiki/images/4/44/Cc-by-nc-sa.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Cc-by-nc-sa.jpg" ns="6" title="Αρχείο:Cc-by-nc-sa.jpg" />
      <img name="Choose_a_License.jpg" timestamp="2014-11-28T12:16:20Z" url="https://www.pirateparty.gr/wiki/images/5/55/Choose_a_License.jpg" descriptionurl="https://www.pirateparty.gr/wiki/index.php?title=%CE%91%CF%81%CF%87%CE%B5%CE%AF%CE%BF:Choose_a_License.jpg" ns="6" title="Αρχείο:Choose a License.jpg" />
    </allimages>
  </query>
</api>