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="Ekstrafag" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="1376" ns="0" title="Biofysikk" />
      <p pageid="1530" ns="0" title="Brynjulf Owren: Numerisk løsning av partielle differensialligninger med differensemetoder" />
      <p pageid="1440" ns="0" title="D.J. Griffiths: Introduction to Electrodynamics" />
      <p pageid="2346" ns="0" title="Diezel Sun" />
      <p pageid="1408" ns="0" title="Doktorgradsfag" />
      <p pageid="1522" ns="0" title="Dundas: Differential Topology" />
      <p pageid="2341" ns="0" title="ETH Zurich, Sveits" />
      <p pageid="1431" ns="0" title="EXPH0001 Filosofi og vitenskapsteori" />
      <p pageid="1589" ns="0" title="Ecole Polytechnique Fédérale de Lausanne" />
      <p pageid="1396" ns="0" title="Eksperter i Team" />
    </allpages>
  </query>
</api>