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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.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <logevents lestart="2014-04-03T08:50:31Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="417" pageid="0" ns="0" title="Руководство пользователя" type="delete" action="delete" user="Av" timestamp="2014-04-10T02:27:32Z" comment="содержимое: «{{sp.vt.521.ug.ru.rc.navigation}} ---- __FORCETOC__ == Краткий обзор == Система vtiger CRM предоставляет в ва…» (единственным автором был [[Special:Contributions/Av|Av]])" />
      <item logid="416" pageid="208" ns="6" title="Файл:15.88.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T09:05:15Z" comment="" />
      <item logid="415" pageid="207" ns="6" title="Файл:15.77.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T09:05:06Z" comment="" />
      <item logid="414" pageid="200" ns="0" title="Модуль сценариев продаж" type="patrol" action="patrol" user="Av" timestamp="2014-04-03T09:04:57Z" comment="">
        <patrol cur="413" prev="409" auto="1" />
      </item>
      <item logid="413" pageid="206" ns="6" title="Файл:15.66.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T09:02:49Z" comment="" />
      <item logid="412" pageid="205" ns="6" title="Файл:15.55.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T09:02:20Z" comment="" />
      <item logid="411" pageid="204" ns="6" title="Файл:15.44.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T09:02:08Z" comment="" />
      <item logid="410" pageid="200" ns="0" title="Модуль сценариев продаж" type="patrol" action="patrol" user="Av" timestamp="2014-04-03T09:01:59Z" comment="">
        <patrol cur="409" prev="408" auto="1" />
      </item>
      <item logid="409" pageid="200" ns="0" title="Модуль сценариев продаж" type="patrol" action="patrol" user="Av" timestamp="2014-04-03T08:57:55Z" comment="">
        <patrol cur="408" prev="406" auto="1" />
      </item>
      <item logid="408" pageid="203" ns="6" title="Файл:15.33.png" type="upload" action="upload" user="Av" timestamp="2014-04-03T08:57:44Z" comment="" />
    </logevents>
  </query>
</api>