You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allpages>
      <p pageid="16974" ns="0" title="Bad songs" />
      <p pageid="122" ns="0" title="Biscuits" />
      <p pageid="17022" ns="0" title="Blockchain" />
      <p pageid="120" ns="0" title="Community run communication" />
      <p pageid="3" ns="0" title="Free networks" />
      <p pageid="103" ns="0" title="Free networks zine" />
      <p pageid="124" ns="0" title="Magic" />
      <p pageid="1" ns="0" title="Main Page" />
      <p pageid="16991" ns="0" title="Mousing about" />
      <p pageid="17007" ns="0" title="Open source tech" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Other ideas and links" />
  </query-continue>
</api>