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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>
    <querypage name="Ancientpages">
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        <page value="20130914180847" timestamp="2013-09-14T18:08:47Z" ns="0" title="SketchChair Tutorials" />
        <page value="20131004232129" timestamp="2013-10-04T23:21:29Z" ns="0" title="Main Page" />
        <page value="20160311021717" timestamp="2016-03-11T02:17:17Z" ns="0" title="Beat the Tension - Laugh at Brief Funny Jokes4426308" />
        <page value="20160313125813" timestamp="2016-03-13T12:58:13Z" ns="0" title="How Will Hiring Escorts Solutions in London Help You to Enjoy Your Holiday?1413436" />
        <page value="20160316072505" timestamp="2016-03-16T07:25:05Z" ns="0" title="Searching For a Tantric Massage2530849" />
      </results>
    </querypage>
  </query>
</api>