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 alcontinue="Bank_xml.dll" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="BANK OplatyBakowe" />
      <l ns="0" title="BANK PartnerRozmowZBankiem" />
      <l ns="0" title="BO kasy na nastepny dzien" />
      <l ns="0" title="Bank" />
      <l ns="0" title="Bank kb24.dll" />
      <l ns="0" title="Bank mt94x.dll" />
      <l ns="0" title="Bank proffice.dll" />
      <l ns="0" title="Bank proffice2.dll" />
      <l ns="0" title="Bank sepa.dll" />
      <l ns="0" title="Bank wbk.dll" />
    </alllinks>
  </query>
</api>