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="Drivers_API|243" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Заглавная страница" />
      <page pageid="2" ns="0" title="IRidium Script API" />
      <page pageid="59" ns="0" title="IRidium App" />
      <page pageid="69" ns="0" title="Drivers API" />
      <page pageid="75" ns="0" title="IRidium DDK" />
      <page pageid="106" ns="0" title="Особенности iRidium Script" />
      <page pageid="133" ns="0" title="Основы работы iRidium для Crestron" />
      <page pageid="236" ns="0" title="Настройка подключения к KNX" />
    </pages>
  </query>
</api>