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HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allpages>
      <p pageid="288" ns="0" title="Dateien im WWW bereitstellen" />
      <p pageid="299" ns="0" title="Datenbanken verwalten mit PHPMyAdmin" />
      <p pageid="295" ns="0" title="Domain administration with Plesk" />
      <p pageid="284" ns="0" title="E-Mail" />
      <p pageid="304" ns="0" title="Exchange-Mailkonten" />
      <p pageid="283" ns="0" title="FTP / Dateien im WWW bereitstellen" />
      <p pageid="300" ns="0" title="Greylisting" />
      <p pageid="303" ns="0" title="Hauptseite" />
      <p pageid="307" ns="0" title="Hosted Exchange: Zugriff auf Exchange-Mailkonten" />
      <p pageid="301" ns="0" title="Mail per POP3 abrufen" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Mail per POP3 oder IMAP abrufen" />
  </query-continue>
</api>