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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="20071015115530" timestamp="2007-10-15T11:55:30Z" ns="0" title="Wikis" />
        <page value="20071020143718" timestamp="2007-10-20T14:37:18Z" ns="0" title="FOSS Narrative" />
        <page value="20071020171207" timestamp="2007-10-20T17:12:07Z" ns="0" title="Free and Open Source Software" />
        <page value="20071020213532" timestamp="2007-10-20T21:35:32Z" ns="0" title="WELL" />
        <page value="20071020213757" timestamp="2007-10-20T21:37:57Z" ns="0" title="Whole Earth Access" />
        <page value="20071020222952" timestamp="2007-10-20T22:29:52Z" ns="0" title="Intermediate Technology" />
        <page value="20071020223416" timestamp="2007-10-20T22:34:16Z" ns="0" title="Environmental Technology" />
        <page value="20071020223459" timestamp="2007-10-20T22:34:59Z" ns="0" title="Sustainable Technology" />
        <page value="20071020223606" timestamp="2007-10-20T22:36:06Z" ns="0" title="Alternative Technology" />
        <page value="20071022191926" timestamp="2007-10-22T19:19:26Z" ns="0" title="Lewis Mumford" />
      </results>
    </querypage>
  </query>
</api>