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>
    <recentchanges>
      <rc type="log" ns="0" title="Dafabet Casino" rcid="7167" pageid="0" revid="0" old_revid="0" timestamp="2017-10-01T13:13:33Z" />
      <rc type="edit" ns="0" title="PlayMillion Casino" rcid="7166" pageid="3" revid="7167" old_revid="362" timestamp="2017-10-01T12:31:26Z" />
      <rc type="edit" ns="8" title="MediaWiki:Sitenotice" rcid="7165" pageid="2913" revid="7166" old_revid="4212" timestamp="2015-03-02T13:12:11Z" />
      <rc type="edit" ns="0" title="Kingdom Hotel &amp; Casino" rcid="7164" pageid="5548" revid="7165" old_revid="5724" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Plumtree Casino" rcid="7163" pageid="5543" revid="7164" old_revid="6992" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Montclair Hotel &amp; Casino" rcid="7162" pageid="5546" revid="7163" old_revid="5721" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Zambezi Valley Hotel Casino &amp; Entertainment Centre" rcid="7161" pageid="5545" revid="7162" old_revid="5720" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Caribbea Bay Hotel &amp; Casino Resort" rcid="7160" pageid="5544" revid="7161" old_revid="5719" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Majestic Casino, Venus Restaurant &amp; Luna Park" rcid="7159" pageid="5541" revid="7160" old_revid="5716" timestamp="2013-04-08T23:16:12Z" />
      <rc type="edit" ns="0" title="Holiday Inn Lusaka (Ridgeway Hotel)" rcid="7158" pageid="5540" revid="7159" old_revid="5715" timestamp="2013-04-08T23:16:11Z" />
    </recentchanges>
  </query>
  <query-continue>
    <recentchanges rcstart="2013-04-08T23:16:11Z" />
  </query-continue>
</api>