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>
    <blocks bkstart="2016-11-18T14:12:52Z" />
  </query-continue>
  <query>
    <blocks>
      <block id="113095" user="Jonn22" by="Admin" timestamp="2017-12-17T10:49:20Z" expiry="infinity" reason="Спам-ссылки на внешние сайты" nocreate="" autoblock="" />
      <block id="113093" user="Softpromoshuth" by="Admin" timestamp="2017-11-09T14:28:53Z" expiry="infinity" reason="Неприемлемое имя участника" nocreate="" autoblock="" noemail="" />
      <block id="113091" user="Xobertosef" by="Admin" timestamp="2017-11-09T14:28:12Z" expiry="infinity" reason="Неприемлемое имя участника" nocreate="" autoblock="" noemail="" />
      <block id="113090" user="Uhutesi" by="Admin" timestamp="2017-05-22T15:51:29Z" expiry="infinity" reason="Вставка ложной информации" nocreate="" autoblock="" noemail="" />
      <block id="113086" user="Prisasappai1976" by="Admin" timestamp="2017-04-20T13:12:25Z" expiry="infinity" reason="Угрозы, преследование участников" nocreate="" autoblock="" />
      <block id="113085" user="Munrigoosar1971" by="Admin" timestamp="2017-04-20T13:10:52Z" expiry="infinity" reason="Угрозы, преследование участников" nocreate="" autoblock="" />
      <block id="113082" user="Hhihh" by="Admin" timestamp="2017-04-10T08:26:29Z" expiry="infinity" reason="Добавление бессмысленного текста/мусора" nocreate="" autoblock="" noemail="" />
      <block id="113080" user="Ahyhew" by="Admin" timestamp="2017-03-11T00:02:00Z" expiry="infinity" reason="Добавление бессмысленного текста/мусора" nocreate="" autoblock="" />
      <block id="113078" user="Nathalieaburgess" by="Admin" timestamp="2017-02-23T01:10:20Z" expiry="infinity" reason="Вставка ложной информации" nocreate="" autoblock="" noemail="" />
      <block id="113076" user="Denismikhlin" by="Admin" timestamp="2017-02-19T11:18:40Z" expiry="infinity" reason="Добавление бессмысленного текста/мусора" nocreate="" autoblock="" noemail="" />
    </blocks>
  </query>
</api>