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>
    <backlinks gblcontinue="0|Main_Page|5318" />
  </query-continue>
  <query>
    <pages>
      <page pageid="679" ns="0" title="List of communities" contentmodel="wikitext" pagelanguage="en" touched="2021-01-07T10:20:26Z" lastrevid="123999" counter="24070" length="4952" />
      <page pageid="4238" ns="0" title="Main Page/Piscean" contentmodel="wikitext" pagelanguage="en" touched="2014-04-22T00:11:28Z" lastrevid="78692" counter="15748" length="4248" />
      <page pageid="4352" ns="0" title="Main Page/Kazujisha" contentmodel="wikitext" pagelanguage="en" touched="2014-04-22T00:12:27Z" lastrevid="78694" counter="15199" length="4302" />
      <page pageid="4407" ns="0" title="Main Page/Nytal" contentmodel="wikitext" pagelanguage="en" touched="2009-08-29T01:38:21Z" lastrevid="48670" counter="14897" length="3731" />
      <page pageid="4896" ns="0" title="Main Page/Tauro-Piscean" contentmodel="wikitext" pagelanguage="en" touched="2014-04-22T00:13:03Z" lastrevid="78695" counter="11336" length="4681" />
      <page pageid="5003" ns="0" title="Main Page/Thorsutian" contentmodel="wikitext" pagelanguage="en" touched="2014-04-22T00:13:32Z" lastrevid="78696" counter="12532" length="4909" />
      <page pageid="5074" ns="0" title="Meen Peedx" contentmodel="wikitext" pagelanguage="en" touched="2009-05-04T12:50:13Z" lastrevid="45171" counter="23059" length="2315" />
      <page pageid="5168" ns="0" title="New Main Page Demo" contentmodel="wikitext" pagelanguage="en" touched="2023-09-26T10:35:27Z" lastrevid="32452" counter="4904" length="1887" />
      <page pageid="5190" ns="0" title="Main Page/Other languages" contentmodel="wikitext" pagelanguage="en" touched="2023-09-26T10:35:27Z" lastrevid="156896" counter="11984" length="1851" />
      <page pageid="5222" ns="0" title="Main Page/Espiritolan" contentmodel="wikitext" pagelanguage="en" touched="2009-05-09T09:48:07Z" lastrevid="45303" counter="10542" length="1768" />
    </pages>
  </query>
</api>