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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="20070311085034" timestamp="2007-03-11T08:50:34Z" ns="0" title="Leaf margin" />
        <page value="20070311091509" timestamp="2007-03-11T09:15:09Z" ns="0" title="‎Phagocytosis" />
        <page value="20070311094310" timestamp="2007-03-11T09:43:10Z" ns="0" title="Mother cell" />
        <page value="20070311094418" timestamp="2007-03-11T09:44:18Z" ns="0" title="Radula" />
        <page value="20070311100536" timestamp="2007-03-11T10:05:36Z" ns="0" title="Univalve" />
        <page value="20070315181541" timestamp="2007-03-15T18:15:41Z" ns="0" title="Morphism" />
        <page value="20070315192124" timestamp="2007-03-15T19:21:24Z" ns="0" title="F-theory" />
        <page value="20070325222259" timestamp="2007-03-25T22:22:59Z" ns="0" title="Sex-linked inheritance" />
        <page value="20070401165343" timestamp="2007-04-01T16:53:43Z" ns="0" title="Sequentially compact" />
        <page value="20070402040447" timestamp="2007-04-02T04:04:47Z" ns="0" title="Geometry terms" />
      </results>
    </querypage>
  </query>
</api>