You are looking at the HTML representation of the XML format.
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>
    <allpages apcontinue="Lager_Manager" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="38" ns="0" title="Banking Modul" />
      <p pageid="64" ns="0" title="Bewertungserinnerung Modul" />
      <p pageid="49" ns="0" title="Buchhaltung (Fibu) Modul" />
      <p pageid="6" ns="0" title="Contacts" />
      <p pageid="78" ns="0" title="DHL Versenden Modul" />
      <p pageid="59" ns="0" title="Dokumenten Manager Modul" />
      <p pageid="7" ns="0" title="EBay Modul" />
      <p pageid="57" ns="0" title="Echtzeitsuche Modul" />
      <p pageid="54" ns="0" title="Google Merchant Modul" />
      <p pageid="1" ns="0" title="Hauptseite" />
    </allpages>
  </query>
</api>