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="Bas_Vossen" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Barack Obama" missing="" />
      <page ns="0" title="Barbara Fried" missing="" />
      <page ns="0" title="Barry Shain" missing="" />
      <page ns="0" title="Barry Spector" missing="" />
      <page pageid="3123" ns="0" title="BadEconomics, search for libertarian, Austrian Economics, and Bitcoin." />
      <page pageid="3122" ns="0" title="BadHistory, search for libertarian" />
      <page pageid="3124" ns="0" title="BadPhilosophy, search for libertarian, Rand, and objectivism." />
      <page pageid="2807" ns="0" title="Bad Role Models: The Embattled Arrival of Honduras&#039; Model Cities" />
      <page pageid="2210" ns="0" title="Bad Samaritans: The Myth of Free Trade and the Secret History of Capitalism" />
      <page pageid="5388" ns="0" title="Bangladesh is the new Asian Tiger" />
    </pages>
  </query>
</api>