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>
    <allredirects garcontinue="MpOTR" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="I get a &#039;Page Not Found&#039; error" missing="" />
      <page pageid="67" ns="0" title="Curricula" />
      <page pageid="836" ns="0" title="Data Loss" />
      <page pageid="818" ns="0" title="DigSec/Tools" />
      <page pageid="1794" ns="0" title="Fa/رایانه" />
      <page pageid="908" ns="0" title="I&#039;m worried someone is trying to lure me with a fake email (phishing)" />
      <page pageid="886" ns="0" title="I want to be certain of the recipient&#039;s identity (and vice versa)" />
      <page pageid="943" ns="0" title="I want to know about options for private chat" />
      <page pageid="1697" ns="0" title="I want to send a secure SMS (text message)" />
      <page pageid="819" ns="0" title="Mailpile" />
    </pages>
  </query>
</api>