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="bosch_pll360.jpg|54" />
  </query-continue>
  <query>
    <pages>
      <page pageid="9" ns="0" title="Optimum BF-30 CNC" />
      <page pageid="14" ns="0" title="Holzbandsäge" />
      <page pageid="44" ns="0" title="Bernina 530-1 Record" />
      <page pageid="45" ns="0" title="Bernina 532-1" />
      <page pageid="61" ns="0" title="Berlan 350" />
      <page pageid="80" ns="0" title="Step Four Xpert P 1500" />
      <page pageid="92" ns="0" title="Anycubic Photon - DLP Resin" />
      <page pageid="96" ns="0" title="Step Four Xpert-1000P" />
      <page pageid="102" ns="0" title="Anycubic Photon - LCD Resin" />
      <page pageid="114" ns="0" title="QIDI Tech I Dual Extruder" />
    </pages>
  </query>
</api>