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>
    <allredirects garcontinue="Contact|2244" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1498" ns="0" title="Files/Patch to use a cas server to authenticate" />
      <page pageid="1772" ns="0" title="Gi/users/lookup/" />
      <page pageid="1773" ns="0" title="EPrints Directory Structure/eprints3/cfg" />
      <page pageid="1816" ns="0" title="EPrints Directory Structure/eprints3/cgi" />
      <page pageid="1848" ns="0" title="EPrints Directory Structure/eprints3/cgi/users" />
      <page pageid="1850" ns="0" title="EPrints Directory Structure/eprints3/bin" />
      <page pageid="1973" ns="0" title="Change Deposit Statuses in Bulk" />
      <page pageid="2420" ns="0" title="Cite" />
      <page pageid="2723" ns="0" title="Configuration Buttons For Bazaar Pacakges" />
      <page pageid="2818" ns="0" title="EPrints Directory Structure/eprints3/bin/export" />
    </pages>
  </query>
</api>