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>
    <blocks>
      <block id="11" user="Lika" by="Yywyn" timestamp="2024-04-15T15:31:37Z" expiry="infinity" reason="Amendement Cracotte78 (art 16.2 CGU)" nocreate="" noemail="" />
      <block id="10" user="Khyrros" by="Yywyn" timestamp="2023-05-29T14:11:48Z" expiry="infinity" reason="Inactif" nocreate="" />
      <block id="9" user="Boris" by="Yywyn" timestamp="2017-10-04T18:08:24Z" expiry="infinity" reason="Ne joue plus" nocreate="" />
      <block id="8" user="Helmara" by="Yywyn" timestamp="2017-07-23T22:19:57Z" expiry="infinity" reason="N&#039;est plus sur le jeu" nocreate="" noemail="" />
      <block id="7" user="Sydd" by="Yywyn" timestamp="2015-05-01T01:58:35Z" expiry="infinity" reason="Renvoi de l&#039;association éditrice du jeu, pour faute grave et détournement des comptes de Dragonium sur les réseaux sociaux." nocreate="" autoblock="" noemail="" />
      <block id="5" user="Liliith" by="Weaver" timestamp="2014-09-27T14:14:58Z" expiry="infinity" reason="plus de nouvelles" nocreate="" autoblock="" noemail="" />
      <block id="3" user="Inu" by="Weaver" timestamp="2014-09-27T14:14:45Z" expiry="infinity" reason="plus de nouvelles" nocreate="" autoblock="" noemail="" />
      <block id="1" user="Helba" by="Weaver" timestamp="2014-09-27T14:14:01Z" expiry="infinity" reason="plus de nouvelles" nocreate="" autoblock="" noemail="" />
    </blocks>
  </query>
</api>