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>
    <allpages gapcontinue="Добавление_администраторов_через_admins.cfg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="94" ns="0" title="Team Fortress 2" touched="2016-03-28T18:21:42Z" lastrevid="193" counter="35003" length="185" />
      <page pageid="41" ns="0" title="WorldBorder - Ограничение размеров мира" touched="2015-02-22T19:22:20Z" lastrevid="60" counter="16799" length="13773" new="" />
      <page pageid="98" ns="0" title="Добавление администраторов" touched="2016-03-28T18:21:15Z" lastrevid="192" counter="17596" length="3321" new="" />
      <page pageid="45" ns="0" title="Добавление администраторов в Mani Admin Plugin" touched="2015-02-22T19:34:17Z" lastrevid="65" counter="15817" length="10442" new="" />
    </pages>
  </query>
</api>