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="Base_Filtro_Prorrogação_de_Vencimentos" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3146" ns="0" title="Baixa CNAB" />
      <page pageid="3154" ns="0" title="Barra Superior - Configuração" />
      <page pageid="3505" ns="0" title="Base Casa Rede" />
      <page pageid="3566" ns="0" title="Base Doc" />
      <page pageid="3674" ns="0" title="Base Doc Utilitários" />
      <page pageid="3867" ns="0" title="Base Filtro IExpress" />
      <page pageid="3933" ns="0" title="Base Filtro IExpress Drive" />
      <page pageid="3438" ns="0" title="Base Filtro Integração da Base de Dados" />
      <page pageid="4635" ns="0" title="Base Filtro Jobs" />
      <page pageid="3118" ns="0" title="Base Filtro Procedimentos Gerais" />
    </pages>
  </query>
</api>