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>
    <allredirects garcontinue="Page_Templates:Creating_a_Confirmation_Template|61" />
  </query-continue>
  <query>
    <pages>
      <page pageid="21" ns="0" title="EV::pageMenuGet($menuId=NULL)" />
      <page pageid="22" ns="0" title="EV::pageZoneGet($zoneIdOrName,$pageId,$dBug=0)" />
      <page pageid="33" ns="0" title="Functions:pageContentAttribSetStart/pageContentAttribSetEnd" />
      <page pageid="51" ns="0" title="The Administration Console:Page Templates" />
      <page pageid="55" ns="0" title="The Administration Console:Page Templates:Creating Your First Template" />
      <page pageid="59" ns="0" title="The Administration Console:Page Templates:Creating a Billing Address Template" />
      <page pageid="62" ns="0" title="The Administration Console:Custom Fields" />
      <page pageid="63" ns="0" title="The Administration Console:Page Templates:Core Variables" />
      <page pageid="65" ns="0" title="Page Templates:Custom Fields" />
      <page pageid="175" ns="2" title="User:Amber24paige" />
    </pages>
  </query>
</api>