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="2016-02-21T15:01:47Z|15951" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="log" ns="0" title="ヌカタ・デル・ゴーモ" rcid="15965" pageid="0" revid="0" old_revid="0" timestamp="2020-04-13T04:47:52Z" />
      <rc type="new" ns="2" title="利用者:Shootingstar" rcid="15964" pageid="14320" revid="21743" old_revid="0" timestamp="2019-09-02T02:27:58Z" />
      <rc type="edit" ns="0" title="ダークサイドの洞窟" rcid="15963" pageid="748" revid="21742" old_revid="21741" timestamp="2019-08-22T07:33:18Z" />
      <rc type="edit" ns="0" title="ダークサイドの洞窟" rcid="15962" pageid="748" revid="21741" old_revid="749" timestamp="2019-08-22T07:24:44Z" />
      <rc type="edit" ns="0" title="エズラ・ブリッジャー" rcid="15959" pageid="14043" revid="21738" old_revid="21494" timestamp="2019-05-08T22:09:24Z" />
      <rc type="log" ns="2" title="利用者:Shootingstar" rcid="15956" pageid="0" revid="0" old_revid="0" timestamp="2019-05-04T07:13:50Z" />
      <rc type="edit" ns="0" title="メインページ" rcid="15955" pageid="1" revid="21735" old_revid="21734" timestamp="2017-09-09T09:41:27Z" />
      <rc type="edit" ns="0" title="メインページ" rcid="15954" pageid="1" revid="21734" old_revid="21552" timestamp="2017-09-09T09:40:46Z" />
      <rc type="new" ns="0" title="ブロブフィッシュ" rcid="15953" pageid="14318" revid="21733" old_revid="0" timestamp="2016-02-21T15:02:50Z" />
      <rc type="edit" ns="0" title="アンカー・プラット" rcid="15952" pageid="14273" revid="21732" old_revid="21731" timestamp="2016-02-21T15:02:18Z" />
    </recentchanges>
  </query>
</api>