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>
    <allfileusages gafcontinue="Blue_star.png|1984" />
  </query-continue>
  <query>
    <pages>
      <page pageid="82" ns="0" title="E-Sex-T" />
      <page pageid="95" ns="0" title="Беломор-Буги" />
      <page pageid="192" ns="0" title="Зловещие кузнецы" />
      <page pageid="203" ns="14" title="Категория:Избранная статья" />
      <page pageid="280" ns="0" title="Moon Far Away" />
      <page pageid="1716" ns="0" title="Bloody Tomatoz" />
      <page pageid="1983" ns="10" title="Шаблон:Избранная статья" />
      <page pageid="2196" ns="0" title="Big Raccoon`s Band" />
    </pages>
  </query>
</api>