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="20190223183329|21931" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="550" title="Notes:Identifying common electrical components" pageid="5337" revid="9435" old_revid="9433" rcid="21941" timestamp="2024-02-16T20:32:47Z" />
      <rc type="new" ns="550" title="Notes:Identifying common electrical components/3-legged components" pageid="5338" revid="9434" old_revid="0" rcid="21940" timestamp="2024-02-16T20:32:08Z" />
      <rc type="new" ns="550" title="Notes:Identifying common electrical components" pageid="5337" revid="9433" old_revid="0" rcid="21939" timestamp="2024-02-16T20:27:34Z" />
      <rc type="log" ns="550" title="Notes:Desitiny taken zelot spawns" pageid="5013" revid="0" old_revid="0" rcid="21938" timestamp="2020-10-31T14:24:16Z" />
      <rc type="edit" ns="558" title="Template data:Highlighting templates" pageid="1758" revid="9430" old_revid="3754" rcid="21937" timestamp="2020-07-18T17:47:43Z" />
      <rc type="edit" ns="10" title="Template:Link" pageid="5179" revid="9429" old_revid="9103" rcid="21936" timestamp="2020-07-18T16:42:43Z" />
      <rc type="edit" ns="0" title="Main Page" pageid="1" revid="9428" old_revid="8965" rcid="21935" timestamp="2020-05-11T16:51:57Z" />
      <rc type="new" ns="0" title="Mass units" pageid="5335" revid="9427" old_revid="0" rcid="21934" timestamp="2019-03-10T07:01:57Z" />
      <rc type="new" ns="0" title="Quadratic equation" pageid="5334" revid="9426" old_revid="0" rcid="21933" timestamp="2019-03-09T11:51:14Z" />
      <rc type="new" ns="0" title="Hexadecimal numbers" pageid="5333" revid="9425" old_revid="0" rcid="21932" timestamp="2019-02-23T18:38:07Z" />
    </recentchanges>
  </query>
</api>