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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages apcontinue="Berlin_Pirates_manifesto,_Education" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="20746" ns="0" title="Become an Individual Member of PPI" />
      <p pageid="348" ns="0" title="Belgium" />
      <p pageid="817" ns="0" title="Benutzer:Mendoza/BOINC" />
      <p pageid="2099" ns="0" title="Berlin Pirates manifesto," />
      <p pageid="2098" ns="0" title="Berlin Pirates manifesto, Addiction policy" />
      <p pageid="2095" ns="0" title="Berlin Pirates manifesto, Art &amp; Culture" />
      <p pageid="2100" ns="0" title="Berlin Pirates manifesto, Asylum and Migration Policy" />
      <p pageid="2091" ns="0" title="Berlin Pirates manifesto, Democracy" />
      <p pageid="2101" ns="0" title="Berlin Pirates manifesto, Domestic Policy" />
      <p pageid="2097" ns="0" title="Berlin Pirates manifesto, Economic and Social Policy" />
    </allpages>
  </query>
</api>