You are looking at the HTML representation of the XML format.
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>
    <pages>
      <page pageid="1" ns="0" title="Main Page">
        <revisions>
          <rev user="Webmaster" comment="" />
        </revisions>
      </page>
    </pages>
    <general mainpage="Main Page" base="http://blis.cam/Main_Page" sitename="Bitame Lucia Nursery and Primary School in Nkolfoulou, Cameroon" generator="MediaWiki 1.18.6" phpversion="5.3.29" phpsapi="fpm-fcgi" dbtype="mysql" dbversion="5.5.30" case="first-letter" rights="Creative Commons Attribution Share Alike" lang="en" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/London" timeoffset="0" articlepath="/$1" scriptpath="/domains/blis.cam" script="/domains/blis.cam/index.php" variantarticlepath="" server="http://blis.cam" wikiid="d35275_capec-_capec_" time="2025-03-22T06:12:29Z" />
  </query>
</api>