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>
  <warnings>
    <main xml:space="preserve">Unrecognized parameter: '*'</main>
  </warnings>
  <query-continue>
    <revisions rvcontinue="14183" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page">
        <revisions>
          <rev user="ParaLogia" timestamp="2021-07-17T00:05:14Z" comment="Update forum link" />
          <rev user="Furai" timestamp="2018-04-03T17:31:08Z" comment="Fix link" />
          <rev user="ParaLogia" timestamp="2016-08-04T22:17:51Z" comment="" />
          <rev user="Furai" timestamp="2014-03-14T13:53:04Z" comment="Undo revision 14191 by [[Special:Contributions/Furai|Furai]] ([[User talk:Furai|talk]])" />
          <rev user="Furai" timestamp="2014-03-14T13:36:04Z" comment="Changed the description" />
        </revisions>
      </page>
    </pages>
  </query>
</api>