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>
    <allfileusages gafcontinue="BACK_TO_MAIN_PAGE_RUS.png|4227" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3993" ns="0" title="Найти и уничтожить:КИВ" />
      <page pageid="4003" ns="0" title="Грабёж:КИВ" />
      <page pageid="4009" ns="0" title="Захват:КИВ" />
      <page pageid="4010" ns="0" title="Разведка:КИВ" />
      <page pageid="4020" ns="0" title="Обмен послами:КИВ" />
      <page pageid="4076" ns="0" title="Ресурсы:КИВ" />
      <page pageid="4123" ns="14" title="Category:КИВ Постройки" />
      <page pageid="4148" ns="0" title="Калькулятор Боя:КИВ" />
      <page pageid="4224" ns="14" title="Category:КИВ Корпорации" />
      <page pageid="4225" ns="0" title="Вступление, Корпорации:КИВ" />
    </pages>
  </query>
</api>