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="Azala" base="http://eu.wiki.guifi.net/wiki/Azala" sitename="Guifi.net - Wiki Euskara" logo="/skins/guifi/images/wiki.png" generator="MediaWiki 1.22.0" phpversion="5.4.45-0+deb7u2" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.47-0+deb7u1" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefix="" linktrail="/^([a-z]+)(.*)$/sD" case="first-letter" rights="GNU Free Documentation License 1.3 &amp; Creative Commons Attribution/Share-Alike License" lang="eu" fallback8bitEncoding="windows-1252" writeapi="" timezone="Europe/Berlin" timeoffset="120" articlepath="/wiki/$1" scriptpath="/w" script="/w/index.php" variantarticlepath="" server="http://eu.wiki.guifi.net" wikiid="wikianfitrion-eu_" time="2024-05-19T01:10:30Z" 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">Berezi</ns>
      <ns id="0" case="first-letter" subpages="" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Eztabaida</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">Lankide</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">Lankide eztabaida</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">Guifi.net - Wiki Euskara</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Guifi.net - Wiki Euskara eztabaida</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">Fitxategi</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">Fitxategi eztabaida</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 eztabaida</ns>
      <ns id="10" case="first-letter" canonical="Template" xml:space="preserve">Txantiloi</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Txantiloi eztabaida</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" xml:space="preserve">Laguntza</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Laguntza eztabaida</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Kategoria</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Kategoria eztabaida</ns>
      <ns id="90" case="first-letter" canonical="Thread" xml:space="preserve">Thread</ns>
      <ns id="91" case="first-letter" canonical="Thread talk" xml:space="preserve">Thread talk</ns>
      <ns id="92" case="first-letter" canonical="Summary" xml:space="preserve">Summary</ns>
      <ns id="93" case="first-letter" canonical="Summary talk" xml:space="preserve">Summary talk</ns>
    </namespaces>
    <namespacealiases>
      <ns id="-1" xml:space="preserve">Aparteko</ns>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="6" xml:space="preserve">Irudi</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
      <ns id="7" xml:space="preserve">Irudi eztabaida</ns>
    </namespacealiases>
    <statistics pages="32" articles="3" views="153326" edits="126" images="9" users="7" activeusers="0" admins="4" jobs="0" />
  </query>
</api>