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>
    <alltransclusions gatcontinue="URL_схема" />
  </query-continue>
  <query>
    <pages>
      <page pageid="196" ns="10" title="Шаблон:IRidium App" />
      <page pageid="195" ns="10" title="Шаблон:IRidium GUI Editor" />
      <page pageid="199" ns="10" title="Шаблон:IRidium Gate" />
      <page pageid="198" ns="10" title="Шаблон:IRidium Project" />
      <page pageid="197" ns="10" title="Шаблон:IRidium Transfer" />
      <page pageid="1266" ns="10" title="Шаблон:IRidium Transfer Instructions List" />
      <page pageid="799" ns="10" title="Шаблон:IRidium Util" />
      <page pageid="1463" ns="10" title="Шаблон:JStable" />
      <page pageid="1133" ns="10" title="Шаблон:Site" />
      <page pageid="841" ns="10" title="Шаблон:TOC right" />
    </pages>
  </query>
</api>