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>
    <links gplcontinue="1|0|ISO_Installation" />
  </query-continue>
  <query>
    <pages>
      <page pageid="24" ns="0" title="API" contentmodel="wikitext" pagelanguage="en" touched="2018-12-17T23:15:53Z" lastrevid="434" counter="349183" length="16064" />
      <page pageid="35" ns="0" title="Application Templates" contentmodel="wikitext" pagelanguage="en" touched="2022-04-22T17:37:39Z" lastrevid="437" counter="25536" length="3089" />
      <page pageid="11" ns="0" title="Billing" contentmodel="wikitext" pagelanguage="en" touched="2016-01-05T22:57:10Z" lastrevid="301" counter="25627" length="1412" />
      <page pageid="38" ns="0" title="Burstable Resources" contentmodel="wikitext" pagelanguage="en" touched="2023-12-27T16:45:28Z" lastrevid="439" counter="37313" length="4797" />
      <page pageid="10" ns="0" title="Create your first instance" contentmodel="wikitext" pagelanguage="en" touched="2016-01-05T22:57:01Z" lastrevid="300" counter="46379" length="3054" />
      <page pageid="12" ns="0" title="DNS" contentmodel="wikitext" pagelanguage="en" touched="2016-07-06T07:25:24Z" lastrevid="344" counter="19550" length="3059" />
      <page pageid="2" ns="0" title="Floating IP addresses" contentmodel="wikitext" pagelanguage="en" touched="2016-08-23T06:34:21Z" lastrevid="345" counter="56266" length="4249" />
      <page pageid="25" ns="0" title="Frequently asked questions" contentmodel="wikitext" pagelanguage="en" touched="2021-02-24T20:20:56Z" lastrevid="436" counter="221138" length="9932" />
      <page pageid="33" ns="0" title="Hardware specifications" contentmodel="wikitext" pagelanguage="en" touched="2018-08-10T17:33:09Z" lastrevid="421" counter="26131" length="566" />
      <page pageid="39" ns="0" title="Hosted E-mail" contentmodel="wikitext" pagelanguage="en" touched="2018-08-10T19:57:57Z" lastrevid="422" counter="4846" length="586" new="" />
    </pages>
  </query>
</api>