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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="20100326075846" timestamp="2010-03-26T07:58:46Z" ns="0" title="Main Page" />
        <page value="20120123224121" timestamp="2012-01-23T22:41:21Z" ns="0" title="Asscalc good to know" />
        <page value="20120403034538" timestamp="2012-04-03T03:45:38Z" ns="0" title="NyuFX Variablen" />
        <page value="20120407094621" timestamp="2012-04-07T09:46:21Z" ns="0" title="NyuFX Funktionen" />
        <page value="20120722142907" timestamp="2012-07-22T14:29:07Z" ns="0" title="ASSCalc" />
        <page value="20120722144043" timestamp="2012-07-22T14:40:43Z" ns="0" title="Asscalc Variablen" />
        <page value="20121025081750" timestamp="2012-10-25T08:17:50Z" ns="0" title="Allgemeine Funktionsweise von AFX Plugins" />
        <page value="20121025093432" timestamp="2012-10-25T09:34:32Z" ns="0" title="PT SSAnimator v2" />
        <page value="20121025094616" timestamp="2012-10-25T09:46:16Z" ns="0" title="PT SSAnimator 2.0/3.0" />
        <page value="20121025095408" timestamp="2012-10-25T09:54:08Z" ns="0" title="SSA Import" />
      </results>
    </querypage>
  </query>
</api>