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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-continue>
    <allpages gapcontinue="Top_10_Reasons_for_Septic_Tank_Odors" />
  </query-continue>
  <query>
    <pages>
      <page pageid="59" ns="0" title="Taking out Bed Bugs" contentmodel="wikitext" pagelanguage="en" touched="2015-02-22T16:15:47Z" lastrevid="1255" counter="9652" length="2441" />
      <page pageid="276" ns="0" title="The health effects of Black Toxic Mold" contentmodel="wikitext" pagelanguage="en" touched="2014-12-04T16:45:07Z" lastrevid="1056" counter="6910" length="4249" />
      <page pageid="111" ns="0" title="The rise of Bed Bugs" contentmodel="wikitext" pagelanguage="en" touched="2014-12-03T19:06:00Z" lastrevid="967" counter="6904" length="3120" />
      <page pageid="316" ns="0" title="Top 10 Grease Trap Questions" contentmodel="wikitext" pagelanguage="en" touched="2014-12-03T14:59:18Z" lastrevid="873" counter="45767" length="5730" />
    </pages>
  </query>
</api>