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="Conversation|713" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1102" ns="0" title="Terms of Service" />
      <page pageid="592" ns="0" title="Ban" />
      <page pageid="1748" ns="0" title="Consumables" />
      <page pageid="605" ns="0" title="Controls" />
      <page pageid="793" ns="0" title="Categorie:Objets" />
      <page pageid="625" ns="0" title="Construction de porte" />
      <page pageid="1987" ns="0" title="Paquet de bataille royale" />
      <page pageid="986" ns="0" title="Billing FAQ" />
      <page pageid="583" ns="0" title="FAQ de la facturation" />
      <page pageid="1989" ns="0" title="Paquet de bataille" />
    </pages>
  </query>
</api>