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="2016-10-05T18:46:00Z|745" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="0" title="Configurar Dispositvo de Rede" rcid="755" pageid="301" revid="734" old_revid="733" timestamp="2016-10-06T17:39:57Z" />
      <rc type="edit" ns="0" title="Configurar Dispositvo de Rede" rcid="754" pageid="301" revid="733" old_revid="690" timestamp="2016-10-06T17:19:01Z" />
      <rc type="edit" ns="0" title="Logs do Sistema" rcid="753" pageid="326" revid="732" old_revid="731" timestamp="2016-10-06T13:37:19Z" />
      <rc type="new" ns="0" title="Logs do Sistema" rcid="752" pageid="326" revid="731" old_revid="0" timestamp="2016-10-06T13:36:25Z" />
      <rc type="log" ns="6" title="Arquivo:Relatorios logs 1.png" rcid="751" pageid="325" revid="0" old_revid="0" timestamp="2016-10-05T20:05:21Z" />
      <rc type="edit" ns="0" title="Instalação do Firewall IDB Secure Gateway" rcid="750" pageid="324" revid="729" old_revid="728" timestamp="2016-10-05T19:51:41Z" />
      <rc type="new" ns="0" title="Instalação do Firewall IDB Secure Gateway" rcid="749" pageid="324" revid="728" old_revid="0" timestamp="2016-10-05T18:50:46Z" />
      <rc type="log" ns="6" title="Arquivo:Instalacao 13.png" rcid="748" pageid="322" revid="0" old_revid="0" timestamp="2016-10-05T18:46:33Z" />
      <rc type="log" ns="6" title="Arquivo:Instalacao 12.png" rcid="747" pageid="321" revid="0" old_revid="0" timestamp="2016-10-05T18:46:22Z" />
      <rc type="log" ns="6" title="Arquivo:Instalacao 11.png" rcid="746" pageid="320" revid="0" old_revid="0" timestamp="2016-10-05T18:46:12Z" />
    </recentchanges>
  </query>
</api>