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>
    <allpages apcontinue="Chōken" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="94134" ns="0" title="Ba" />
      <p pageid="92869" ns="0" title="Bijin-ga" />
      <p pageid="92884" ns="0" title="BreunigTyndall133" />
      <p pageid="93340" ns="0" title="Britax Push Strollers - A Great Manufacturer Product Line With Unparalleled Features3381247" />
      <p pageid="636" ns="0" title="Carpenter研究室" />
      <p pageid="93331" ns="0" title="Carseat Safety - What to Prepare For When Looking For A Vehicle Seats2328489" />
      <p pageid="98987" ns="0" title="Choken" />
      <p pageid="1895" ns="0" title="Chokokuto" />
      <p pageid="94147" ns="0" title="Chu-no-mai" />
      <p pageid="1906" ns="0" title="Chuban" />
    </allpages>
  </query>
</api>