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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>
    <allpages gapcontinue="Taller_we_moot11/Presentación" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1252" ns="0" title="Taller de Moodle" contentmodel="wikitext" pagelanguage="es" touched="2011-12-15T12:20:39Z" lastrevid="6970" counter="1184" length="0" />
      <page pageid="1078" ns="0" title="Taller we moot11" contentmodel="wikitext" pagelanguage="es" touched="2016-06-30T11:11:01Z" lastrevid="6842" counter="7675" length="373" />
      <page pageid="1184" ns="0" title="Taller we moot11/Materiales taller moot 2011" contentmodel="wikitext" pagelanguage="es" touched="2011-12-09T08:07:25Z" lastrevid="6757" counter="809" length="202" />
      <page pageid="1186" ns="0" title="Taller we moot11/Objetivos" contentmodel="wikitext" pagelanguage="es" touched="2011-12-09T08:29:27Z" lastrevid="6762" counter="1026" length="252" />
    </pages>
  </query>
</api>