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="Cookie_jar" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Beginners" missing="" />
      <page ns="0" title="Category Management" missing="" />
      <page ns="0" title="Component Development" missing="" />
      <page ns="0" title="Component Management" missing="" />
      <page pageid="404" ns="0" title="COUNTRIES.sql" />
      <page pageid="1419" ns="0" title="Cart onepage order manager" />
      <page pageid="1386" ns="0" title="Catalog manager edit pic" />
      <page pageid="1398" ns="0" title="Catalog part info view" />
      <page pageid="1381" ns="0" title="Catalog price view" />
      <page pageid="1380" ns="0" title="Contact form" />
    </pages>
  </query>
</api>