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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="20091201165001" timestamp="2009-12-01T16:50:01Z" ns="100" title="Private:Minutes/20091201" />
        <page value="20091209123229" timestamp="2009-12-09T12:32:29Z" ns="100" title="Private:Protein Service LIMS/Demo" />
        <page value="20091214132803" timestamp="2009-12-14T13:28:03Z" ns="100" title="Private:Minutes/20091209" />
        <page value="20091215100408" timestamp="2009-12-15T10:04:08Z" ns="102" title="Education:Main Page" />
        <page value="20091215101659" timestamp="2009-12-15T10:16:59Z" ns="100" title="Private:Labs workflow" />
        <page value="20100111092427" timestamp="2010-01-11T09:24:27Z" ns="100" title="Private:Minutes/20091215" />
        <page value="20100112120545" timestamp="2010-01-12T12:05:45Z" ns="100" title="Private:Minutes/20100112" />
        <page value="20100121173757" timestamp="2010-01-21T17:37:57Z" ns="100" title="Private:Protein Service LIMS/Meeting Michela 20100119" />
        <page value="20100201120540" timestamp="2010-02-01T12:05:40Z" ns="100" title="Private:Minutes/20100129" />
        <page value="20100226173529" timestamp="2010-02-26T17:35:29Z" ns="100" title="Private:Semantic Wiki" />
      </results>
    </querypage>
  </query>
</api>