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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="20100716194301" timestamp="2010-07-16T19:43:01Z" ns="0" title="Header-Daten des Apache Webservers ändern" />
        <page value="20100716194546" timestamp="2010-07-16T19:45:46Z" ns="0" title="Citrix® x86-Client Version 11 auf Ubuntu Linux 10.2 installieren (2.6.31-15-generic-pae)" />
        <page value="20100716195155" timestamp="2010-07-16T19:51:55Z" ns="0" title="FreeBSD®/i386 RELEASE 8.0 auf Notebook &quot;DELL Latitude C600&quot; mit MiniPCI-WLAN-Karte &quot;Broadcom BCM4306 802.11b/g Wireless Lan&quot; und WPA2 (CCMP) Verschlüsselung einrichten" />
        <page value="20100716195354" timestamp="2010-07-16T19:53:54Z" ns="0" title="EIZO FlexScan T761 xorg.conf für X11 einrichten" />
        <page value="20110731115752" timestamp="2011-07-31T11:57:52Z" ns="0" title="FreeBSD®/i386 RELEASE 8.2 auf PC &quot;HP Vectra XE310&quot; mit &quot;AD1885 Sound&quot; einrichten" />
        <page value="20110811060751" timestamp="2011-08-11T06:07:51Z" ns="0" title="Neubau Bürgerrathaus" />
        <page value="20120812092555" timestamp="2012-08-12T09:25:55Z" ns="0" title="Symbian, Nokia E52 ..." />
        <page value="20130721144428" timestamp="2013-07-21T14:44:28Z" ns="0" title="Webserver mit FreeBSD® 7.2-RELEASE über Ports aufsetzen" />
        <page value="20130804171407" timestamp="2013-08-04T17:14:07Z" ns="0" title="Webserver mit FreeBSD® 9.1-RELEASE über Ports aufsetzen" />
        <page value="20131020080257" timestamp="2013-10-20T08:02:57Z" ns="0" title="Citrix® Receiver for Windows 3.0 (x86) auf Microsoft Windows 7 Professional SP1 installieren (Version 6.1.7601)" />
      </results>
    </querypage>
  </query>
</api>