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>
    <general mainpage="Hoofdpagina" base="https://v-web002.deltares.nl/sterktenoodmaatregelen/index.php/Hoofdpagina" sitename="Delta Noodmaatregelen" logo="/sterktenoodmaatregelen/skins/noodmaatregelen/images/logo.png" generator="MediaWiki 1.22.6" phpversion="5.4.8" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.28" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefix="" linktrail="/^([a-zäöüïëéèà]+)(.*)$/sDu" case="first-letter" rights="" lang="nl" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Amsterdam" timeoffset="120" articlepath="/sterktenoodmaatregelen/index.php/$1" scriptpath="/sterktenoodmaatregelen" script="/sterktenoodmaatregelen/index.php" variantarticlepath="" server="https://v-web002.deltares.nl" wikiid="wiki_noodmaatreg" time="2024-05-01T18:48:59Z" maxuploadsize="104857600">
      <fallback>
        <lang code="en" />
      </fallback>
    </general>
    <namespaces>
      <ns id="-2" case="first-letter" canonical="Media" xml:space="preserve">Media</ns>
      <ns id="-1" case="first-letter" canonical="Special" xml:space="preserve">Speciaal</ns>
      <ns id="0" case="first-letter" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Overleg</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">Gebruiker</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">Overleg gebruiker</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">Delta Noodmaatregelen</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Overleg Delta Noodmaatregelen</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">Bestand</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">Overleg bestand</ns>
      <ns id="8" case="first-letter" subpages="" canonical="MediaWiki" xml:space="preserve">MediaWiki</ns>
      <ns id="9" case="first-letter" subpages="" canonical="MediaWiki talk" xml:space="preserve">Overleg MediaWiki</ns>
      <ns id="10" case="first-letter" canonical="Template" xml:space="preserve">Sjabloon</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Overleg sjabloon</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" xml:space="preserve">Help</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Overleg help</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Categorie</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Overleg categorie</ns>
    </namespaces>
    <namespacealiases>
      <ns id="6" xml:space="preserve">Afbeelding</ns>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="7" xml:space="preserve">Overleg afbeelding</ns>
    </namespacealiases>
    <statistics pages="1185" articles="192" views="1494232" edits="5048" images="778" users="57" activeusers="0" admins="7" jobs="0" />
  </query>
</api>