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>
  <warnings>
    <parse xml:space="preserve">No 'title' or 'contentmodel' was given, assuming wikitext.</parse>
  </warnings>
  <parse title="API" displaytitle="API">
    <text xml:space="preserve">&lt;p&gt;&lt;a href=&quot;/index.php?title=www.leather-dictionary.com_-_The_Leather_Dictionary:Sandbox&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;www.leather-dictionary.com - The Leather Dictionary:Sandbox (page does not exist)&quot;&gt;www.leather-dictionary.com - The Leather Dictionary:Sandbox&lt;/a&gt;
&lt;/p&gt;
&lt;!-- 
NewPP limit report
CPU time usage: 0.004 seconds
Real time usage: 0.006 seconds
Preprocessor visited node count: 2/1000000
Preprocessor generated node count: 12/1000000
Post‐expand include size: 64/2097152 bytes
Template argument size: 0/2097152 bytes
Highest expansion depth: 2/40
Expensive parser function count: 0/100
--&gt;
</text>
    <langlinks />
    <categories />
    <links>
      <pl ns="4" xml:space="preserve">www.leather-dictionary.com - The Leather Dictionary:Sandbox</pl>
    </links>
    <templates>
      <tl ns="4" xml:space="preserve">www.leather-dictionary.com - The Leather Dictionary:Sandbox</tl>
    </templates>
    <images />
    <externallinks />
    <sections />
    <iwlinks />
    <properties />
  </parse>
</api>