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="20250328160323|17810" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="0" title="大阪杯" pageid="803" revid="17375" old_revid="17374" rcid="17820" timestamp="2025-04-06T13:31:26Z" />
      <rc type="edit" ns="0" title="大阪杯" pageid="803" revid="17374" old_revid="17350" rcid="17819" timestamp="2025-04-06T13:28:39Z" />
      <rc type="edit" ns="0" title="高松宮記念 (競馬)" pageid="566" revid="17373" old_revid="17349" rcid="17818" timestamp="2025-03-30T10:09:40Z" />
      <rc type="edit" ns="0" title="エリザベス女王杯" pageid="626" revid="17372" old_revid="17343" rcid="17817" timestamp="2025-03-28T16:11:46Z" />
      <rc type="edit" ns="0" title="菊花賞" pageid="623" revid="17371" old_revid="17320" rcid="17816" timestamp="2025-03-28T16:11:23Z" />
      <rc type="edit" ns="0" title="マイルチャンピオンシップ" pageid="629" revid="17370" old_revid="17323" rcid="17815" timestamp="2025-03-28T16:08:57Z" />
      <rc type="edit" ns="0" title="秋華賞" pageid="619" revid="17369" old_revid="17319" rcid="17814" timestamp="2025-03-28T16:08:35Z" />
      <rc type="edit" ns="0" title="ジャパンカップ" pageid="634" revid="17368" old_revid="17324" rcid="17813" timestamp="2025-03-28T16:06:32Z" />
      <rc type="edit" ns="0" title="スプリンターズステークス" pageid="616" revid="17367" old_revid="17342" rcid="17812" timestamp="2025-03-28T16:06:09Z" />
      <rc type="edit" ns="0" title="チャンピオンズカップ (中央競馬)" pageid="570" revid="17366" old_revid="17346" rcid="17811" timestamp="2025-03-28T16:03:46Z" />
    </recentchanges>
  </query>
</api>