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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="20061003100145" timestamp="2006-10-03T10:01:45Z" ns="0" title="Forum" />
        <page value="20061017072259" timestamp="2006-10-17T07:22:59Z" ns="0" title="Praktikum: Messen von Kennlinien" />
        <page value="20061019181523" timestamp="2006-10-19T18:15:23Z" ns="0" title="Kochplatte" />
        <page value="20061123110500" timestamp="2006-11-23T11:05:00Z" ns="0" title="1. Klausur" />
        <page value="20061209121942" timestamp="2006-12-09T12:19:42Z" ns="0" title="Inhalt Kurs 2008" />
        <page value="20110118090355" timestamp="2011-01-18T09:03:55Z" ns="0" title="Klausur1K1" />
        <page value="20110302124137" timestamp="2011-03-02T12:41:37Z" ns="0" title="Philosophie der Wahrscheinlichkeit" />
        <page value="20110315102253" timestamp="2011-03-15T10:22:53Z" ns="0" title="Japan" />
        <page value="20110318222242" timestamp="2011-03-18T22:22:42Z" ns="0" title="Oberflächenspannung" />
        <page value="20110325220153" timestamp="2011-03-25T22:01:53Z" ns="0" title="Ägypten" />
      </results>
    </querypage>
  </query>
</api>