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 alcontinue="Phabricator:43869|8" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="D-Link DIR-300 (версия C1E)" />
      <l ns="0" title="D-Link DIR-300 (версия C1E)" />
      <l ns="0" title="Geo microformat" />
      <l ns="0" title="Internal link" />
      <l ns="0" title="M:MediaWiki:Common.css" />
      <l ns="0" title="MAXnet CPE-W4n" />
      <l ns="0" title="MAXnet CPE-W4n настройка TV" />
      <l ns="0" title="MAXnet CPE-W4n обновление" />
      <l ns="0" title="Module:Message box" />
      <l ns="0" title="Module:Message box" />
    </alllinks>
  </query>
</api>