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>
    <alllinks galcontinue="ID_Интерьеров|1" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Заглавная страница" />
      <page pageid="5" ns="0" title="Клиентские функции" />
      <page pageid="26" ns="10" title="Шаблон:Client Functions: Other" />
      <page pageid="39" ns="0" title="RGB" />
      <page pageid="43" ns="0" title="Как написать свой скрипт?" />
      <page pageid="54" ns="0" title="RGBA" />
      <page pageid="62" ns="0" title="ID Меток радара" />
      <page pageid="96" ns="0" title="Vector3" />
      <page pageid="97" ns="0" title="Vector2" />
    </pages>
  </query>
</api>