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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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20100706195344" timestamp="2010-07-06T19:53:44Z" ns="0" title="QuantaStor Partitioning" />
        <page value="20100715193820" timestamp="2010-07-15T19:38:20Z" ns="0" title="Osn wsdl" />
        <page value="20111213001235" timestamp="2011-12-13T00:12:35Z" ns="0" title="Performance Testing" />
        <page value="20111226165153" timestamp="2011-12-26T16:51:53Z" ns="0" title="Snapshot Schedule Add Volumes" />
        <page value="20111227230423" timestamp="2011-12-27T23:04:23Z" ns="0" title="User Group Add" />
        <page value="20120427154940" timestamp="2012-04-27T15:49:40Z" ns="0" title="Modify Switch Failover Group" />
        <page value="20120427155008" timestamp="2012-04-27T15:50:08Z" ns="0" title="Set Failover Group Activation Mode" />
        <page value="20140313215835" timestamp="2014-03-13T21:58:35Z" ns="0" title="Set Password Link" />
        <page value="20140502164436" timestamp="2014-05-02T16:44:36Z" ns="0" title="IO Performance Tuning" />
        <page value="20141202195735" timestamp="2014-12-02T19:57:35Z" ns="0" title="Log Output" />
      </results>
    </querypage>
  </query>
</api>