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="Main Page" base="https://openzfsonosx.org/wiki/Main_Page" sitename="OpenZFS on OS X" logo="/w/skins/common/images/usbhdd_openzfs_small.png" generator="MediaWiki 1.22.3" phpversion="5.6.36-pl0-gentoo" phpsapi="apache2handler" dbtype="mysql" dbversion="5.7.22-log" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefix="" linktrail="/^([a-z]+)(.*)$/sD" case="first-letter" rights="" lang="en" fallback8bitEncoding="windows-1252" readonly="" readonlyreason="The wiki is temporarily in read-only mode for urgent maintenance. No edits or page creations are possible at this time." writeapi="" timezone="UTC" timeoffset="0" articlepath="/wiki/$1" scriptpath="/w" script="/w/index.php" variantarticlepath="" server="https://openzfsonosx.org" wikiid="wiki" time="2025-09-16T22:08:18Z" maxuploadsize="409715200">
      <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">Special</ns>
      <ns id="0" case="first-letter" content="" xml:space="preserve" />
      <ns id="1" case="first-letter" subpages="" canonical="Talk" xml:space="preserve">Talk</ns>
      <ns id="2" case="first-letter" subpages="" canonical="User" xml:space="preserve">User</ns>
      <ns id="3" case="first-letter" subpages="" canonical="User talk" xml:space="preserve">User talk</ns>
      <ns id="4" case="first-letter" subpages="" canonical="Project" xml:space="preserve">OpenZFS on OS X</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">OpenZFS on OS X talk</ns>
      <ns id="6" case="first-letter" canonical="File" xml:space="preserve">File</ns>
      <ns id="7" case="first-letter" subpages="" canonical="File talk" xml:space="preserve">File talk</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 talk</ns>
      <ns id="10" case="first-letter" canonical="Template" xml:space="preserve">Template</ns>
      <ns id="11" case="first-letter" subpages="" canonical="Template talk" xml:space="preserve">Template talk</ns>
      <ns id="12" case="first-letter" subpages="" canonical="Help" xml:space="preserve">Help</ns>
      <ns id="13" case="first-letter" subpages="" canonical="Help talk" xml:space="preserve">Help talk</ns>
      <ns id="14" case="first-letter" canonical="Category" xml:space="preserve">Category</ns>
      <ns id="15" case="first-letter" subpages="" canonical="Category talk" xml:space="preserve">Category talk</ns>
    </namespaces>
    <namespacealiases>
      <ns id="6" xml:space="preserve">Image</ns>
      <ns id="7" xml:space="preserve">Image talk</ns>
    </namespacealiases>
    <statistics pages="750" articles="24" views="4791221" edits="8872" images="84" users="3224" activeusers="0" admins="5" jobs="0" />
  </query>
</api>