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>
    <recentchanges>
      <rc type="edit" ns="600" title="MAS:System Requirements" rcid="607" pageid="5" revid="493" old_revid="469" timestamp="2021-09-29T15:56:43Z" />
      <rc type="edit" ns="0" title="Main Page" rcid="606" pageid="1" revid="492" old_revid="490" timestamp="2019-04-29T17:04:41Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Webmasters Stats Format" rcid="605" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:26:29Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Settings/Two-tier rates" rcid="604" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:26:10Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Settings/Levels" rcid="603" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:25:43Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Billing Processors/Epoch" rcid="602" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:24:50Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Settings/Payout schedule" rcid="601" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:24:16Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Billing Processors/OrbitalPay" rcid="600" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:24:06Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Settings/Pay rates" rcid="599" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:23:54Z" />
      <rc type="log" ns="500" title=":Admin area/Settings/Billing Processors/DHD" rcid="598" pageid="0" revid="0" old_revid="0" timestamp="2017-01-31T10:23:45Z" />
    </recentchanges>
  </query>
  <query-continue>
    <recentchanges rcstart="2017-01-31T10:23:26Z" />
  </query-continue>
</api>