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="Global_Cache:_получение_состояния_сенсоров_и_системных_данных" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1044" ns="0" title="Clipsal" />
      <page pageid="64" ns="0" title="Crestron" />
      <page pageid="490" ns="0" title="Domintell" />
      <page pageid="69" ns="0" title="Drivers API" />
      <page pageid="494" ns="0" title="Duotecno" />
      <page pageid="492" ns="0" title="EPSNET" />
      <page pageid="1051" ns="0" title="EPSNET: примеры управления регистрами" />
      <page pageid="66" ns="0" title="GUI API" />
      <page pageid="71" ns="0" title="Gestures API" />
      <page pageid="1414" ns="0" title="Global Cache" />
    </pages>
  </query>
</api>