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="Авласов_Ян" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Абдуллина Софья" missing="" />
      <page ns="0" title="Абхазия 2017" missing="" />
      <page pageid="3046" ns="0" title="Mamont" />
      <page pageid="2430" ns="0" title="Абилдаев Роман" />
      <page pageid="4771" ns="0" title="Аблаев Алексей" />
      <page pageid="4794" ns="0" title="Аблаев Антон" />
      <page pageid="727" ns="0" title="Абрамов Сергей" />
      <page pageid="4547" ns="0" title="Авдеев Илья" />
      <page pageid="3850" ns="0" title="Авдиевич Николай" />
      <page pageid="5321" ns="0" title="Аверков Алексей" />
    </pages>
  </query>
</api>