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>
  <warnings>
    <main xml:space="preserve">Unrecognized parameter: '*'</main>
  </warnings>
  <query-continue>
    <revisions rvcontinue="100856" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page">
        <revisions>
          <rev user="PesachZ" timestamp="2017-02-16T21:08:11Z" comment="added wazeopeedia redirect" />
          <rev user="Deeploz" timestamp="2015-04-02T12:22:11Z" comment="converging to one version of the About page" />
          <rev user="Deeploz" timestamp="2015-03-31T17:13:40Z" comment="removing UserMaintained templates as discussed on the forum" />
          <rev user="Deeploz" timestamp="2015-03-25T16:39:20Z" comment="replacing transclusion of a template containing only one sentence by the sentence itself" />
          <rev user="Deeploz" timestamp="2015-03-25T15:12:23Z" comment="updating section transclusion, following a de-templatization" />
        </revisions>
      </page>
    </pages>
  </query>
</api>