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="Child_Page_List" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="CHC Affiliate Application" missing="" />
      <page pageid="34" ns="0" title="Banner Campaigns" />
      <page pageid="131" ns="0" title="Big O and Dukes (BOAD)" />
      <page pageid="35" ns="0" title="Blogs" />
      <page pageid="254" ns="0" title="Buyer&#039;s Guide" />
      <page pageid="117" ns="0" title="CHC Blocking Extranet Pages" />
      <page pageid="118" ns="0" title="CHC Corporate Partner Site Branding" />
      <page pageid="116" ns="0" title="CHC Membership Application" />
      <page pageid="119" ns="0" title="CHC using Open Graph with Newsletters" />
      <page pageid="36" ns="0" title="Calendar" />
    </pages>
  </query>
</api>