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HTML is good for debugging, but is unsuitable for application use.
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To see the non HTML representation of the XML format, set format=xml.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <links gplcontinue="721|4|People" />
  </query-continue>
  <query>
    <pages>
      <page pageid="4559" ns="0" title="Developer section" contentmodel="wikitext" pagelanguage="en" touched="2018-03-30T07:33:33Z" lastrevid="35964" counter="44528" length="3186" />
      <page pageid="4551" ns="0" title="Hardware device information" contentmodel="wikitext" pagelanguage="en" touched="2018-10-24T09:01:59Z" lastrevid="36168" counter="753813" length="2132" />
      <page pageid="4807" ns="0" title="News Archive" contentmodel="wikitext" pagelanguage="en" touched="2012-07-21T17:35:28Z" lastrevid="30957" counter="24814" length="8796" />
      <page pageid="4553" ns="0" title="Other sources of info" contentmodel="wikitext" pagelanguage="en" touched="2016-12-25T00:48:34Z" lastrevid="35444" counter="23092" length="2049" />
      <page pageid="3718" ns="0" title="People behind V4L-DVB" contentmodel="wikitext" pagelanguage="en" touched="2017-09-14T13:03:24Z" lastrevid="35758" counter="75949" length="5847" />
      <page pageid="4550" ns="0" title="Technical background" contentmodel="wikitext" pagelanguage="en" touched="2017-10-08T12:47:07Z" lastrevid="35805" counter="47253" length="1412" />
      <page pageid="4552" ns="0" title="User information" contentmodel="wikitext" pagelanguage="en" touched="2016-12-25T00:47:21Z" lastrevid="35406" counter="148872" length="1164" />
      <page pageid="4251" ns="0" title="What is V4L or DVB?" contentmodel="wikitext" pagelanguage="en" touched="2016-12-18T06:25:15Z" lastrevid="34514" counter="108767" length="3281" />
      <page pageid="3058" ns="0" title="Wiki - Help Wanted List" contentmodel="wikitext" pagelanguage="en" touched="2016-12-06T00:57:23Z" lastrevid="35185" counter="25997" length="922" />
      <page pageid="4992" ns="0" title="Wiki - New Device Copy &amp; Paste Template" contentmodel="wikitext" pagelanguage="en" touched="2016-12-23T07:15:29Z" lastrevid="31120" counter="32861" length="7562" />
    </pages>
  </query>
</api>