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="Accueil" base="http://archives.forum-usages-cooperatifs.net/index.php/Accueil" sitename="Forum des Usages Coopératifs" logo="" generator="MediaWiki 1.22.6" phpversion="5.6.40-70+0~20240421.84+debian10~1.gbp0c0ec4" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.5-10.3.39-MariaDB-0+deb10u2" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefix="" linktrail="/^([a-zàâçéèêîôûäëïöüùÇÉÂÊÎÔÛÄËÏÖÜÀÈÙ]+)(.*)$/sDu" case="first-letter" rights="GNU Free Documentation License 1.3 ou ultérieure" lang="fr" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Paris" timeoffset="120" articlepath="/index.php/$1" scriptpath="" script="/index.php" variantarticlepath="" server="http://archives.forum-usages-cooperatifs.net" wikiid="mairiebrest_forumusages" time="2024-05-08T17:42:35Z" maxuploadsize="104857600">
      <fallback>
        <lang code="en" />
      </fallback>
    </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">Spécial</ns>
      <ns id="0" case="first-letter" subpages="" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Discussion</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">Utilisateur</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">Discussion utilisateur</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">Projet</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Discussion Projet</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">Fichier</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">Discussion fichier</ns>
      <ns id="8" case="first-letter" canonical="MediaWiki" xml:space="preserve">MediaWiki</ns>
      <ns id="9" case="first-letter" subpages="" canonical="MediaWiki talk" xml:space="preserve">Discussion MediaWiki</ns>
      <ns id="10" case="first-letter" subpages="" canonical="Template" xml:space="preserve">Modèle</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Discussion modèle</ns>
      <ns id="12" case="first-letter" canonical="Help" xml:space="preserve">Aide</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Discussion aide</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Catégorie</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Discussion catégorie</ns>
      <ns id="104" case="first-letter" canonical="Attribut" xml:space="preserve">Attribut</ns>
      <ns id="105" case="first-letter" subpages="" canonical="Discussion attribut" xml:space="preserve">Discussion attribut</ns>
      <ns id="106" case="first-letter" canonical="Type" xml:space="preserve">Type</ns>
      <ns id="107" case="first-letter" subpages="" canonical="Type talk" xml:space="preserve">Type talk</ns>
      <ns id="108" case="first-letter" canonical="Form" xml:space="preserve">Formulaire</ns>
      <ns id="109" case="first-letter" subpages="" canonical="Form talk" xml:space="preserve">Discussion formulaire</ns>
      <ns id="110" case="first-letter" canonical="Concept" xml:space="preserve">Concept</ns>
      <ns id="111" case="first-letter" canonical="Discussion concept" xml:space="preserve">Discussion concept</ns>
      <ns id="112" case="first-letter" subpages="" canonical="Fiche" xml:space="preserve">Fiche</ns>
      <ns id="113" case="first-letter" subpages="" canonical="Fiche talk" xml:space="preserve">Fiche talk</ns>
      <ns id="114" case="first-letter" canonical="Contrib" xml:space="preserve">Contrib</ns>
      <ns id="115" case="first-letter" canonical="Contrib talk" xml:space="preserve">Contrib talk</ns>
      <ns id="250" case="first-letter" canonical="Page" xml:space="preserve">Page</ns>
      <ns id="251" case="first-letter" canonical="Page talk" xml:space="preserve">Discussion Page</ns>
      <ns id="252" case="first-letter" canonical="Index" xml:space="preserve">Livre</ns>
      <ns id="253" case="first-letter" canonical="Index talk" xml:space="preserve">Discussion Livre</ns>
      <ns id="420" case="first-letter" canonical="Layer" xml:space="preserve">Layer</ns>
      <ns id="421" case="first-letter" canonical="Layer talk" xml:space="preserve">Layer talk</ns>
      <ns id="500" case="first-letter" subpages="" canonical="Portail" xml:space="preserve">Portail</ns>
      <ns id="501" case="first-letter" subpages="" canonical="Portail talk" xml:space="preserve">Portail talk</ns>
      <ns id="502" case="first-letter" subpages="" canonical="Private" xml:space="preserve">Private</ns>
      <ns id="503" case="first-letter" subpages="" canonical="Private talk" xml:space="preserve">Private talk</ns>
    </namespaces>
    <namespacealiases>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="104" xml:space="preserve">Property</ns>
      <ns id="105" xml:space="preserve">Property talk</ns>
      <ns id="111" xml:space="preserve">Concept talk</ns>
    </namespacealiases>
    <statistics pages="33836" articles="468" views="10843385" edits="75974" images="376" users="359" activeusers="0" admins="15" jobs="39" />
  </query>
</api>