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>
    <alllinks galcontinue="Bazar/Modèles" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1591" ns="0" title="BIACS - Biennale d’Art contemporain de Séville" />
      <page pageid="1538" ns="0" title="BIJ de Brest" />
      <page pageid="20165" ns="0" title="Barcamp du forum" />
      <page pageid="15139" ns="0" title="Bas-Rhin" />
      <page pageid="13064" ns="0" title="Base de données coopératives" />
      <page pageid="31578" ns="0" title="Bases de données coopératives : structurer ses contenus pour les présenter et diffuser plus facilement" />
      <page pageid="15067" ns="0" title="Bazar/Data" />
      <page pageid="15066" ns="0" title="Bazar/Documentations" />
      <page pageid="15001" ns="0" title="Bazar/Formulaires" />
      <page pageid="14999" ns="0" title="Bazar/Listes" />
    </pages>
  </query>
</api>