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>
    <allpages gapcontinue="Архитектурно_проектный_раздел" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1044" ns="0" title="Upload to the MIA" contentmodel="wikitext" pagelanguage="ru" touched="2023-03-10T13:42:38Z" lastrevid="6028" counter="5629" length="110826" />
      <page pageid="38" ns="0" title="«HMS Servio». Редактор отелей. Руководство администратора" contentmodel="wikitext" pagelanguage="ru" touched="2015-04-30T14:02:06Z" lastrevid="298" counter="1765" length="99" />
      <page pageid="37" ns="0" title="«HMS Сервио». Редактор отелей. Руководство администратора" contentmodel="wikitext" pagelanguage="ru" touched="2015-04-30T14:02:06Z" lastrevid="159" counter="310" length="134" redirect="" new="" />
      <page pageid="930" ns="0" title="Автозакрытие смены в сервисе ФР" contentmodel="wikitext" pagelanguage="ru" touched="2019-12-18T09:21:03Z" lastrevid="5182" counter="544" length="75" redirect="" new="" />
    </pages>
  </query>
</api>