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>
    <embeddedin geicontinue="10|Stub|1131" />
  </query-continue>
  <query>
    <pages>
      <page pageid="764" ns="0" title="Oggenc" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="28816" counter="57800" length="7590" />
      <page pageid="765" ns="0" title="Rio Karma" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="18718" counter="44534" length="1076" />
      <page pageid="780" ns="0" title="Vorbis Comment" contentmodel="wikitext" pagelanguage="en" touched="2022-09-17T08:38:53Z" lastrevid="35850" counter="74093" length="2210" />
      <page pageid="788" ns="0" title="Apple iPod" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="13128" counter="58994" length="1298" />
      <page pageid="828" ns="0" title="Quintessential Player" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="35503" counter="22789" length="356" />
      <page pageid="841" ns="0" title="Neuros" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="18695" counter="34513" length="1089" />
      <page pageid="842" ns="0" title="RIFF WAVE" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="35469" counter="68683" length="523" />
      <page pageid="846" ns="0" title="Artifact" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="25490" counter="55144" length="1143" />
      <page pageid="848" ns="0" title="Pulse Code Modulation" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="35455" counter="52057" length="2994" />
      <page pageid="1090" ns="0" title="Ogg" contentmodel="wikitext" pagelanguage="en" touched="2022-06-12T17:14:48Z" lastrevid="27801" counter="60121" length="1074" />
    </pages>
  </query>
</api>