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>
    <alllinks galcontinue="City_of_Castiack|101" />
  </query-continue>
  <query>
    <pages>
      <page pageid="117" ns="0" title="Anatomical Knowledge" />
      <page pageid="176" ns="0" title="Heal Staves" />
      <page pageid="187" ns="0" title="Assassinate Pherrance for Council Members" />
      <page pageid="188" ns="0" title="Assassinate the Duke of Trellor for Vonliege" />
      <page pageid="192" ns="0" title="Assassinating NaeraMae&#039;s Diplomats for Duke" />
      <page pageid="196" ns="0" title="The Assassin&#039;s Challenge" />
      <page pageid="218" ns="0" title="Dragonhide Equipment" />
      <page pageid="219" ns="0" title="Caravan Items" />
      <page pageid="251" ns="0" title="Assist the Wyrms" />
    </pages>
  </query>
</api>