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="Keyboard_Shortcuts_(iPi_Mocap_Studio)" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="Batch Processing" />
      <l ns="0" title="Cameras and Accessories" />
      <l ns="0" title="Depth Sensors Comparison" />
      <l ns="0" title="Distributed Recording" />
      <l ns="0" title="Editions Comparison" />
      <l ns="0" title="Frequently Asked Questions" />
      <l ns="0" title="Hand Keyframing" />
      <l ns="0" title="How to Build Synced Multi-Camera Video" />
      <l ns="0" title="How to Calibrate Camera Optics" />
      <l ns="0" title="How to Record Video with Action Cameras" />
    </alllinks>
  </query>
</api>