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-continue>
    <recentchanges rccontinue="20170420180437|276" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="0" title="Tongerlo" pageid="57" revid="277" old_revid="258" rcid="286" timestamp="2017-09-11T16:37:08Z" />
      <rc type="log" ns="2" title="Gebruiker:Christina" pageid="0" revid="0" old_revid="0" rcid="285" timestamp="2017-09-11T15:34:53Z" />
      <rc type="log" ns="2" title="Gebruiker:Christina" pageid="0" revid="0" old_revid="0" rcid="284" timestamp="2017-09-11T15:34:05Z" />
      <rc type="log" ns="2" title="Gebruiker:Jaak" pageid="0" revid="0" old_revid="0" rcid="283" timestamp="2017-09-11T15:25:14Z" />
      <rc type="edit" ns="0" title="Twee in 1907 door de kerkfabriek Sint-Andreas verkochte schilderijen" pageid="58" revid="276" old_revid="275" rcid="282" timestamp="2017-04-20T18:58:48Z" />
      <rc type="edit" ns="0" title="Twee in 1907 door de kerkfabriek Sint-Andreas verkochte schilderijen" pageid="58" revid="275" old_revid="273" rcid="281" timestamp="2017-04-20T18:57:21Z" />
      <rc type="log" ns="6" title="Bestand:Voetwassing.jpg" pageid="60" revid="0" old_revid="0" rcid="280" timestamp="2017-04-20T18:55:50Z" />
      <rc type="edit" ns="0" title="Twee in 1907 door de kerkfabriek Sint-Andreas verkochte schilderijen" pageid="58" revid="273" old_revid="271" rcid="279" timestamp="2017-04-20T18:54:55Z" />
      <rc type="log" ns="6" title="Bestand:Kruisdraging KIK.jpg" pageid="59" revid="0" old_revid="0" rcid="278" timestamp="2017-04-20T18:52:29Z" />
      <rc type="edit" ns="0" title="Twee in 1907 door de kerkfabriek Sint-Andreas verkochte schilderijen" pageid="58" revid="271" old_revid="270" rcid="277" timestamp="2017-04-20T18:44:42Z" />
    </recentchanges>
  </query>
</api>