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="Forside" base="http://egedalleksikon.dk/index.php/Forside" sitename="Egedal Leksikon" generator="MediaWiki 1.21.11" phpversion="5.4.4-14+deb7u7" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.35-0+wheezy1" langconversion="" titleconversion="" linkprefix="" linktrail="/^([a-zæøå]+)(.*)$/sDu" case="first-letter" rights="Creative Commons Attribution-ShareAlike 4.0 International Licens" lang="da" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Berlin" timeoffset="120" articlepath="/index.php/$1" scriptpath="" script="/index.php" variantarticlepath="" server="http://egedalleksikon.dk" wikiid="wiki_egedalhistorie" time="2024-05-18T22:28:54Z" 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">Speciel</ns>
      <ns id="0" case="first-letter" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Diskussion</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">Bruger</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">Brugerdiskussion</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">Egedal Leksikon</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Egedal Leksikon diskussion</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">Fil</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">Fildiskussion</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">MediaWiki diskussion</ns>
      <ns id="10" case="first-letter" canonical="Template" xml:space="preserve">Skabelon</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Skabelondiskussion</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" xml:space="preserve">Hjælp</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Hjælp diskussion</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Kategori</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Kategoridiskussion</ns>
    </namespaces>
    <namespacealiases>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="6" xml:space="preserve">Billede</ns>
      <ns id="7" xml:space="preserve">Billeddiskussion</ns>
      <ns id="9" xml:space="preserve">MediaWiki-diskussion</ns>
      <ns id="13" xml:space="preserve">Hjælp-diskussion</ns>
      <ns id="5" xml:space="preserve">Egedal Leksikon-diskussion</ns>
    </namespacealiases>
    <statistics pages="1949" articles="925" views="11913736" edits="9750" images="634" users="78" activeusers="1" admins="3" jobs="0" />
  </query>
</api>