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>
  <parse title="TEKOWiki:Sandbox" revid="2051" displaytitle="TEKOWiki:Sandbox">
    <text xml:space="preserve">&lt;p&gt;&lt;small&gt;
&lt;strong class=&quot;selflink&quot;&gt;&lt;b&gt;English (en)&lt;/b&gt;&lt;/strong&gt; 
&lt;a href=&quot;/index.php/TEKOWiki:Sandl%C3%A5da&quot; title=&quot;TEKOWiki:Sandlåda&quot;&gt; &lt;b&gt;svenska (sv)&lt;/b&gt;&lt;/a&gt;
&lt;/small&gt;
&lt;/p&gt;
&lt;h2&gt;&lt;span class=&quot;mw-headline&quot; id=&quot;Welcome_to_the_sandbox&quot;&gt;Welcome to the sandbox&lt;/span&gt;&lt;span class=&quot;mw-editsection&quot;&gt;&lt;span class=&quot;mw-editsection-bracket&quot;&gt;[&lt;/span&gt;&lt;a href=&quot;/index.php?title=TEKOWiki:Sandbox&amp;amp;action=edit&amp;amp;section=1&quot; title=&quot;Edit section: Welcome to the sandbox&quot;&gt;edit&lt;/a&gt;&lt;span class=&quot;mw-editsection-bracket&quot;&gt;]&lt;/span&gt;&lt;/span&gt;&lt;/h2&gt;
&lt;p&gt;Here you can try and change as much as you want, but please do not remove this line ...
&lt;/p&gt;&lt;p&gt;&lt;br /&gt;
&lt;/p&gt;
&lt;hr /&gt;

&lt;!-- 
NewPP limit report
CPU time usage: 0.003 seconds
Real time usage: 0.004 seconds
Preprocessor visited node count: 8/1000000
Preprocessor generated node count: 26/1000000
Post‐expand include size: 115/2097152 bytes
Template argument size: 0/2097152 bytes
Highest expansion depth: 2/40
Expensive parser function count: 0/100
--&gt;

&lt;!-- Saved in parser cache with key tekowiki_db-te_:pcache:idhash:955-0!*!0!*!*!*!* and timestamp 20260312212216 and revision id 2051
 --&gt;
</text>
    <langlinks />
    <categories />
    <links>
      <pl ns="4" exists="" xml:space="preserve">TEKOWiki:Sandlåda</pl>
    </links>
    <templates>
      <tl ns="10" exists="" xml:space="preserve">Template:Sandbox</tl>
    </templates>
    <images />
    <externallinks />
    <sections>
      <s toclevel="1" level="2" line="Welcome to the sandbox" number="1" index="1" fromtitle="TEKOWiki:Sandbox" byteoffset="13" anchor="Welcome_to_the_sandbox" />
    </sections>
    <iwlinks />
    <properties>
      <pp name="notoc" xml:space="preserve" />
    </properties>
  </parse>
</api>