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="Test_link|2" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="CAC Work Plan" />
      <l ns="0" title="CAC Work Plan" />
      <l ns="0" title="Climate Change" />
      <l ns="0" title="Flood Insurance" />
      <l ns="0" title="GIS Resources" />
      <l ns="0" title="GIS Resources" />
      <l ns="0" title="Historical Marshfield" />
      <l ns="0" title="Marshfield Coastal Adaptation Annotated Bibliography" />
      <l ns="0" title="Marshfield Coastal Culture" />
      <l ns="0" title="Planning" />
    </alllinks>
  </query>
</api>