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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="20070523115248" timestamp="2007-05-23T11:52:48Z" ns="0" title="Alan Plater" />
        <page value="20070523115325" timestamp="2007-05-23T11:53:25Z" ns="0" title="Arthur Wing Pinero" />
        <page value="20070523115645" timestamp="2007-05-23T11:56:45Z" ns="0" title="Christopher Gilmore" />
        <page value="20070523115743" timestamp="2007-05-23T11:57:43Z" ns="0" title="Frederick Knott" />
        <page value="20070523120202" timestamp="2007-05-23T12:02:02Z" ns="0" title="Lillian Hellman" />
        <page value="20070523120426" timestamp="2007-05-23T12:04:26Z" ns="0" title="John Osborne" />
        <page value="20070523130722" timestamp="2007-05-23T13:07:22Z" ns="0" title="Jean Giraudoux" />
        <page value="20070523132319" timestamp="2007-05-23T13:23:19Z" ns="0" title="Arthur Miller" />
        <page value="20070523132411" timestamp="2007-05-23T13:24:11Z" ns="0" title="Thornton Wilder" />
        <page value="20070523132655" timestamp="2007-05-23T13:26:55Z" ns="0" title="Neil Simon" />
      </results>
    </querypage>
  </query>
</api>