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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <recentchanges rccontinue="2013-10-24T09:58:21Z|3391" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="8" title="MediaWiki:Sidebar" rcid="3401" pageid="989" revid="3342" old_revid="2216" timestamp="2015-02-11T12:12:37Z" />
      <rc type="edit" ns="0" title="Тестовая площадка" rcid="3400" pageid="1373" revid="3341" old_revid="3332" timestamp="2015-02-11T12:06:46Z" />
      <rc type="edit" ns="0" title="XML схема FictionBook2.1" rcid="3399" pageid="1416" revid="3340" old_revid="1974" timestamp="2015-02-11T12:06:08Z" />
      <rc type="edit" ns="0" title="XML схема FictionBook2.0" rcid="3398" pageid="1462" revid="3339" old_revid="1933" timestamp="2015-02-11T12:04:55Z" />
      <rc type="edit" ns="0" title="XML схема FictionBook2.2" rcid="3397" pageid="1773" revid="3338" old_revid="3336" timestamp="2015-02-11T11:05:30Z" />
      <rc type="edit" ns="0" title="Документы" rcid="3396" pageid="1372" revid="3337" old_revid="2989" timestamp="2015-02-11T10:51:19Z" />
      <rc type="new" ns="0" title="XML схема FictionBook2.2" rcid="3395" pageid="1773" revid="3336" old_revid="0" timestamp="2015-02-11T10:50:50Z" />
      <rc type="edit" ns="0" title="FictionBook 2.0 Schema - комментарии" rcid="3394" pageid="1468" revid="3335" old_revid="2003" timestamp="2013-10-26T09:51:26Z" />
      <rc type="edit" ns="0" title="Элемент description" rcid="3393" pageid="1389" revid="3334" old_revid="2921" timestamp="2013-10-24T10:18:18Z" />
      <rc type="edit" ns="10" title="Шаблон:FB Элемент" rcid="3392" pageid="1359" revid="3333" old_revid="2754" timestamp="2013-10-24T10:17:09Z" />
    </recentchanges>
  </query>
</api>