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 alcontinue="Communication_Tutorial_-_PC-Link|886" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="Basic Search" />
      <l ns="0" title="Bulk Programming" />
      <l ns="0" title="Cancel Communications" />
      <l ns="0" title="Changes in DLS" />
      <l ns="0" title="Changes in DLS" />
      <l ns="0" title="Changes in DLS IV" />
      <l ns="0" title="Communicate Tags" />
      <l ns="0" title="Communication Tutorial-PSTN" />
      <l ns="0" title="Communication Tutorial - Alarm.Com" />
      <l ns="0" title="Communication Tutorial - IP" />
    </alllinks>
  </query>
</api>