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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>
    <pageswithprop gpwpcontinue="38" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page" contentmodel="wikitext" pagelanguage="en" touched="2016-10-25T12:26:51Z" lastrevid="577" counter="415233" length="11103" />
      <page pageid="3" ns="0" title="Team" contentmodel="wikitext" pagelanguage="en" touched="2016-09-05T13:49:48Z" lastrevid="557" counter="166843" length="11850" />
      <page pageid="4" ns="0" title="Venue" contentmodel="wikitext" pagelanguage="en" touched="2016-08-03T13:37:41Z" lastrevid="469" counter="79589" length="6920" />
      <page pageid="21" ns="0" title="Call For Papers" contentmodel="wikitext" pagelanguage="en" touched="2016-08-02T15:48:53Z" lastrevid="313" counter="60309" length="986" />
      <page pageid="25" ns="0" title="Hotels in Baden-Baden" contentmodel="wikitext" pagelanguage="en" touched="2016-08-22T09:42:47Z" lastrevid="515" counter="31191" length="1612" />
      <page pageid="30" ns="0" title="Tutorials" contentmodel="wikitext" pagelanguage="en" touched="2016-09-06T12:35:31Z" lastrevid="559" counter="41128" length="18423" />
      <page pageid="31" ns="0" title="Special Sessions" contentmodel="wikitext" pagelanguage="en" touched="2016-08-02T15:48:53Z" lastrevid="315" counter="36726" length="24732" />
      <page pageid="32" ns="0" title="Submissions" contentmodel="wikitext" pagelanguage="en" touched="2016-09-01T11:50:50Z" lastrevid="555" counter="119176" length="9833" />
      <page pageid="36" ns="0" title="Fees and Registration" contentmodel="wikitext" pagelanguage="en" touched="2016-08-23T09:09:53Z" lastrevid="520" counter="90600" length="8339" />
      <page pageid="37" ns="0" title="T1" contentmodel="wikitext" pagelanguage="en" touched="2016-08-02T15:48:53Z" lastrevid="317" counter="11279" length="4608" />
    </pages>
  </query>
</api>