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="Hack42" base="https://hack42.nl/wiki/Hack42" sitename="Hack42" logo="https://hack42.nl/mediawiki/logos/logo_try2.png" generator="MediaWiki 1.23.7" phpversion="5.6.1" phpsapi="apache2handler" dbtype="mysql" dbversion="5.6.28-log" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefixcharset="" linkprefix="" linktrail="/^([a-zäöüïëéèà]+)(.*)$/sDu" case="first-letter" lang="nl" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Amsterdam" timeoffset="120" articlepath="/wiki/$1" scriptpath="/mediawiki" script="/mediawiki/index.php" server="https://hack42.nl" wikiid="deckart_hack42wiki" time="2019-06-26T00:13:02Z" maxuploadsize="104857600" favicon="https://hack42.nl/favicon.ico">
      <fallback>
        <lang code="en" />
      </fallback>
      <thumblimits>
        <limit>120</limit>
        <limit>150</limit>
        <limit>180</limit>
        <limit>200</limit>
        <limit>250</limit>
        <limit>300</limit>
      </thumblimits>
      <imagelimits>
        <limit width="320" height="240" />
        <limit width="640" height="480" />
        <limit width="800" height="600" />
        <limit width="1024" height="768" />
        <limit width="1280" height="1024" />
      </imagelimits>
    </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">Hack42</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Overleg Hack42</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>
      <ns id="102" case="first-letter" canonical="Eigenschap" xml:space="preserve">Eigenschap</ns>
      <ns id="103" case="first-letter" subpages="" canonical="Overleg eigenschap" xml:space="preserve">Overleg eigenschap</ns>
      <ns id="106" case="first-letter" canonical="Form" xml:space="preserve">Formulier</ns>
      <ns id="107" case="first-letter" subpages="" canonical="Form talk" xml:space="preserve">Overleg formulier</ns>
      <ns id="108" case="first-letter" canonical="Concept" xml:space="preserve">Concept</ns>
      <ns id="109" case="first-letter" canonical="Overleg concept" xml:space="preserve">Overleg concept</ns>
      <ns id="274" case="first-letter" canonical="Widget" xml:space="preserve">Widget</ns>
      <ns id="275" case="first-letter" subpages="" canonical="Widget talk" xml:space="preserve">Widget talk</ns>
      <ns id="460" case="case-sensitive" canonical="Campaign" defaultcontentmodel="Campaign" xml:space="preserve">Campaign</ns>
      <ns id="461" case="case-sensitive" canonical="Campaign talk" xml:space="preserve">Campaign talk</ns>
    </namespaces>
    <namespacealiases>
      <ns id="6" xml:space="preserve">Afbeelding</ns>
      <ns id="6" xml:space="preserve">File</ns>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">File talk</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="7" xml:space="preserve">Overleg afbeelding</ns>
      <ns id="102" xml:space="preserve">Property</ns>
      <ns id="103" xml:space="preserve">Property talk</ns>
      <ns id="109" xml:space="preserve">Concept talk</ns>
    </namespacealiases>
    <statistics pages="4999" articles="1343" views="17282004" edits="28395" images="2144" users="465" activeusers="33" admins="13" jobs="269" />
  </query>
</api>