You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <alllinks>
      <l ns="0" title="Be:Вікіпэдыя:Як рэдагаваць існуючы артыкул" />
      <l ns="0" title="Bg:Уикипедия:Как се редактират страници" />
      <l ns="0" title="Blbnik" />
      <l ns="0" title="Blok SMTP" />
      <l ns="0" title="Br:Skoazell:Penaos kemmañ ur bajenn" />
      <l ns="0" title="Bs:Wikipedia:Kako izmjeniti stranicu" />
      <l ns="0" title="Bus" />
      <l ns="0" title="Ca:Viquipèdia:Com s&#039;edita una pàgina" />
      <l ns="0" title="Call of Duty 4 Multiplayer v 1.4" />
      <l ns="0" title="Chess symbols in Unicode" />
    </alllinks>
  </query>
  <query-continue>
    <alllinks alcontinue="Chrome37fonts|1290" />
  </query-continue>
</api>