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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.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allfileusages gafcontinue="CompilCRComitéSuiviScolariX.pdf|2" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2" ns="0" title="Scolarix:CR Reunion Scolarix" />
      <page pageid="14" ns="0" title="2010-11-09 au 2010-11-12 : INFO&#039;Sup 2010" />
      <page pageid="120" ns="0" title="Images du réseau (google earth)" />
      <page pageid="157" ns="0" title="Scolarix:Documentation" />
      <page pageid="311" ns="0" title="2011-05-23 au 2011-05-24 : Mini-INFO&#039;Sup Tamatave 2011" />
      <page pageid="354" ns="0" title="Scolarix" />
      <page pageid="360" ns="0" title="Information sur le déploiement du Scolarix" />
      <page pageid="431" ns="0" title="Réunion scolarix" />
      <page pageid="437" ns="0" title="Documents relatifs à la mise en place du LMD à Madagascar" />
      <page pageid="491" ns="0" title="Scolarix Mada" />
    </pages>
  </query>
</api>