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>
    <alllinks>
      <l fromid="18" ns="0" title="Doorverwijzing" />
      <l fromid="7" ns="0" title="Gebiedsorganisatie: Over de buurten in Middelland en Nieuwe Westen" />
      <l fromid="30" ns="0" title="Participatiebudget en &#039;Open Spending&#039;" />
      <l fromid="605" ns="0" title="Participatiebudget en &#039;Open Spending&#039;" />
      <l fromid="606" ns="0" title="Participatiebudget en &#039;Open Spending&#039;" />
      <l fromid="25" ns="0" title="Toegekende bedragen en initiatieven in 2014" />
      <l fromid="25" ns="0" title="Toegekende bedragen en initiatieven in 2015" />
      <l fromid="25" ns="0" title="Toegekende bedragen en initiatieven in 2016" />
      <l fromid="25" ns="0" title="Toegekende bedragen en initiatieven in 2017" />
    </alllinks>
  </query>
</api>