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="Community:Hauptseite" base="https://community.faktorzehn.org/index.php/Community:Hauptseite" sitename="Faktor-IPS Community Wiki" logo="https://community.faktorzehn.org/extensions/BlueSpiceFoundation/resources/bluespice/images/FaktorIPS_community.png" generator="MediaWiki 1.23.8" phpversion="5.5.9-1ubuntu4.29+esm15" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.5-10.4.4-MariaDB-1:10.4.4+maria~trusty-log" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefixcharset="" linkprefix="" linktrail="/^([äöüßa-z]+)(.*)$/sDu" case="first-letter" lang="de-formal" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Berlin" timeoffset="120" articlepath="/index.php/$1" scriptpath="" script="/index.php" server="https://community.faktorzehn.org" wikiid="bluespice" time="2024-09-16T19:41:32Z" maxuploadsize="104857600" favicon="https://community.faktorzehn.org/favicon.ico">
      <fallback>
        <lang code="de" />
        <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="case-sensitive" canonical="Media" xml:space="preserve">Medium</ns>
      <ns id="-1" case="first-letter" canonical="Special" xml:space="preserve">Spezial</ns>
      <ns id="0" case="first-letter" subpages="" content="" nonincludable="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" nonincludable="" xml:space="preserve">Diskussion</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" nonincludable="" xml:space="preserve">Benutzer</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" nonincludable="" xml:space="preserve">Benutzer Diskussion</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" nonincludable="" xml:space="preserve">FaktorIPS Community Wiki</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" nonincludable="" xml:space="preserve">FaktorIPS Community Wiki Diskussion</ns>
      <ns id="6" case="case-sensitive" canonical="File" nonincludable="" xml:space="preserve">Datei</ns>
      <ns id="7" case="case-sensitive" subpages="" canonical="File talk" nonincludable="" xml:space="preserve">Datei Diskussion</ns>
      <ns id="8" case="first-letter" subpages="" canonical="MediaWiki" nonincludable="" xml:space="preserve">MediaWiki</ns>
      <ns id="9" case="first-letter" subpages="" canonical="MediaWiki talk" nonincludable="" xml:space="preserve">MediaWiki Diskussion</ns>
      <ns id="10" case="first-letter" canonical="Template" nonincludable="" xml:space="preserve">Vorlage</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" nonincludable="" xml:space="preserve">Vorlage Diskussion</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" nonincludable="" xml:space="preserve">Hilfe</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" nonincludable="" xml:space="preserve">Hilfe Diskussion</ns>
      <ns id="14" case="first-letter" canonical="Category" nonincludable="" xml:space="preserve">Kategorie</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" nonincludable="" xml:space="preserve">Kategorie Diskussion</ns>
      <ns id="1502" case="first-letter" canonical="Blog" xml:space="preserve">Blog</ns>
      <ns id="1503" case="first-letter" canonical="Blog talk" xml:space="preserve">Blog talk</ns>
      <ns id="3000" case="first-letter" subpages="" canonical="Community" content="" nonincludable="" xml:space="preserve">Community</ns>
      <ns id="3001" case="first-letter" subpages="" canonical="Community Diskussion" xml:space="preserve">Community Diskussion</ns>
    </namespaces>
    <namespacealiases>
      <ns id="2" xml:space="preserve">Benutzerin</ns>
      <ns id="3" xml:space="preserve">Benutzerin Diskussion</ns>
      <ns id="6" xml:space="preserve">Bild</ns>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">Bild Diskussion</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="3001" xml:space="preserve">Community talk</ns>
    </namespacealiases>
    <statistics pages="183" articles="3" views="109826" edits="704" images="135" users="158" activeusers="1" admins="1" jobs="61" />
  </query>
</api>