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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="20090523192846" timestamp="2009-05-23T19:28:46Z" ns="0" title="Control de versions: Subversion" />
        <page value="20090523192847" timestamp="2009-05-23T19:28:47Z" ns="0" title="Maemo" />
        <page value="20090523192848" timestamp="2009-05-23T19:28:48Z" ns="0" title="My spam blacklist" />
        <page value="20090523203435" timestamp="2009-05-23T20:34:35Z" ns="0" title="Difusió" />
        <page value="20090523203436" timestamp="2009-05-23T20:34:36Z" ns="0" title="Producció" />
        <page value="20091117200655" timestamp="2009-11-17T20:06:55Z" ns="0" title="Mediateca" />
        <page value="20091127145851" timestamp="2009-11-27T14:58:51Z" ns="0" title="Script de còpies de seguretat en MySQL" />
        <page value="20100810120517" timestamp="2010-08-10T12:05:17Z" ns="0" title="Parallamps" />
        <page value="20100811142344" timestamp="2010-08-11T14:23:44Z" ns="0" title="Recull de termes emprats habitualment" />
        <page value="20101013015631" timestamp="2010-10-13T01:56:31Z" ns="0" title="Recursos externs" />
      </results>
    </querypage>
  </query>
</api>