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="http://music.lib.byu.edu/harpwiki/index.php/Main_Page" sitename="Harp Music from the 18th and 19th Centuries" logo="http://music.lib.byu.edu/harpwiki/HarpIcon.png" generator="MediaWiki 1.23.2" phpversion="5.4.16" phpsapi="apache2handler" dbtype="mysql" dbversion="5.5.56-MariaDB" imagewhitelistenabled="" langconversion="" titleconversion="" linkprefixcharset="" linkprefix="" linktrail="/^([a-z]+)(.*)$/sD" case="first-letter" lang="en" fallback8bitEncoding="windows-1252" readonly="" readonlyreason="&lt;br/&gt;&lt;span style=&quot;color:red&quot;&gt;&#039;&#039;&#039;AN UPGRADE IS IN PROGRESS.  You can VIEW, but not edit, articles and pages while the upgrade is happening.  Thanks for your patience. -David Brownell&#039;&#039;&#039;&lt;/span&gt;" writeapi="" timezone="America/Denver" timeoffset="-360" articlepath="/harpwiki/index.php/$1" scriptpath="/harpwiki" script="/harpwiki/index.php" server="http://music.lib.byu.edu" wikiid="harpwikidb" time="2017-10-19T03:23:43Z" maxuploadsize="104857600" favicon="http://music.lib.byu.edu/favicon.ico">
      <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">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">Harp Music from the 18th and 19th Centuries</ns>
      <ns id="5" case="first-letter" subpages="" canonical="Project talk" xml:space="preserve">Harp Music from the 18th and 19th Centuries 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="428" articles="9" views="319395" edits="681" images="416" users="4" activeusers="0" admins="2" jobs="0" />
  </query>
</api>