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>
    <allredirects garcontinue="Création_de_compte" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Cambion" missing="" />
      <page pageid="57" ns="0" title="Background - Genèse" />
      <page pageid="820" ns="0" title="Boucliers et Saïs" />
      <page pageid="434" ns="0" title="Boucliers et saïs" />
      <page pageid="27" ns="0" title="Calendrier des mises à jour" />
      <page pageid="293" ns="0" title="Calendrier des news et mises à jour" />
      <page pageid="100" ns="0" title="Caractéristiques" />
      <page pageid="314" ns="0" title="Classements" />
      <page pageid="188" ns="0" title="Concours Progression" />
      <page pageid="115" ns="0" title="Contrat" />
    </pages>
  </query>
</api>