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="Kezdőlap" base="https://wiki.w3host.hu/index.php/Kezd%C5%91lap" sitename="W3HOST wiki" logo="https://wiki.w3host.hu/images/w3logo_wiki.png" generator="MediaWiki 1.24.1" phpversion="5.6.40-0+deb8u20" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.5-10.0.38-MariaDB-0+deb8u1" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefixcharset="" linkprefix="" linktrail="/^([a-záéíóúöüőűÁÉÍÓÚÖÜŐŰ]+)(.*)$/sDu" case="first-letter" lang="hu" fallback8bitEncoding="iso8859-2" writeapi="" timezone="Europe/Budapest" timeoffset="120" articlepath="/index.php/$1" scriptpath="" script="/index.php" server="https://wiki.w3host.hu" servername="wiki.w3host.hu" wikiid="webpkgsw3hosthuwiki" time="2024-09-16T19:37:56Z" maxuploadsize="104857600" favicon="https://wiki.w3host.hu/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">Média</ns>
      <ns id="-1" case="first-letter" canonical="Special" xml:space="preserve">Speciális</ns>
      <ns id="0" case="first-letter" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Vita</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">Szerkesztő</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">Szerkesztővita</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">W3HOST wiki</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">W3HOST wiki-vita</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">Fájl</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">Fájlvita</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-vita</ns>
      <ns id="10" case="first-letter" canonical="Template" xml:space="preserve">Sablon</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Sablonvita</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" xml:space="preserve">Segítség</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Segítségvita</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Kategória</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Kategóriavita</ns>
    </namespaces>
    <namespacealiases>
      <ns id="3" xml:space="preserve">User vita</ns>
      <ns id="5" xml:space="preserve">W3HOST wiki vita</ns>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="6" xml:space="preserve">Kép</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="7" xml:space="preserve">Kép vita</ns>
      <ns id="7" xml:space="preserve">Képvita</ns>
      <ns id="9" xml:space="preserve">MediaWiki vita</ns>
      <ns id="11" xml:space="preserve">Sablon vita</ns>
      <ns id="13" xml:space="preserve">Segítség vita</ns>
      <ns id="15" xml:space="preserve">Kategória vita</ns>
    </namespacealiases>
    <statistics pages="63" articles="23" views="1543893" edits="441" images="8" users="1" activeusers="0" admins="1" jobs="0" />
  </query>
</api>