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>
    <recentchanges rccontinue="2018-03-29T00:24:00Z|368" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="0" title="GainCloud Partner Site Documents" rcid="378" pageid="157" revid="370" old_revid="369" timestamp="2018-10-23T14:57:40Z" />
      <rc type="new" ns="0" title="GainCloud Partner Site Documents" rcid="377" pageid="157" revid="369" old_revid="0" timestamp="2018-10-23T14:56:45Z" />
      <rc type="edit" ns="0" title="Main Page" rcid="376" pageid="1" revid="368" old_revid="365" timestamp="2018-10-23T14:55:57Z" />
      <rc type="edit" ns="0" title="Check Website Blacklisting" rcid="375" pageid="156" revid="367" old_revid="366" timestamp="2018-09-04T19:29:57Z" />
      <rc type="new" ns="0" title="Check Website Blacklisting" rcid="374" pageid="156" revid="366" old_revid="0" timestamp="2018-09-04T19:29:00Z" />
      <rc type="edit" ns="0" title="Main Page" rcid="373" pageid="1" revid="365" old_revid="362" timestamp="2018-09-04T19:25:48Z" />
      <rc type="edit" ns="0" title="GainCloud CSP" rcid="372" pageid="155" revid="364" old_revid="363" timestamp="2018-03-29T00:33:52Z" />
      <rc type="new" ns="0" title="GainCloud CSP" rcid="371" pageid="155" revid="363" old_revid="0" timestamp="2018-03-29T00:26:17Z" />
      <rc type="edit" ns="0" title="Main Page" rcid="370" pageid="1" revid="362" old_revid="361" timestamp="2018-03-29T00:26:07Z" />
      <rc type="edit" ns="0" title="Main Page" rcid="369" pageid="1" revid="361" old_revid="358" timestamp="2018-03-29T00:24:57Z" />
    </recentchanges>
  </query>
</api>