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>
    <alllinks galcontinue="Command_Line" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Bullfrog Productions" missing="" />
      <page ns="0" title="CALL" missing="" />
      <page ns="0" title="CDROM" missing="" />
      <page pageid="990" ns="0" title="BOOT" />
      <page pageid="2" ns="0" title="Basic Setup and Installation of DosBox" />
      <page pageid="57799" ns="0" title="BuildingDOSBox" />
      <page pageid="20" ns="0" title="Building DOSBox with MinGW" />
      <page pageid="589" ns="0" title="Building DOSBox with Visual Studio" />
      <page pageid="21" ns="0" title="CDrive" />
      <page pageid="993" ns="0" title="CONFIG" />
    </pages>
  </query>
</api>