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="Barbapapa_by_Annette_Tison_and_Talus_Taylor" />
  </query-continue>
  <query>
    <pages>
      <page pageid="14680" ns="0" title="Babar&#039;s Celesteville Games by Laurent de Brunhoff" />
      <page pageid="18866" ns="0" title="Babies, Babies, Babies! by Catherine Anholt and Laurence Anholt" />
      <page pageid="6360" ns="0" title="Baby Brains and RoboMum by Simon James" />
      <page pageid="7493" ns="0" title="Bad Science by Ben Goldacre" />
      <page pageid="6275" ns="0" title="Bad Traffic by Simon Lewis" />
      <page pageid="6137" ns="0" title="Badger on the Barge by Janni Howker" />
      <page pageid="6171" ns="0" title="Baggy Brown by Mick Inkpen" />
      <page pageid="14003" ns="0" title="Ballad by Maggie Stiefvater" />
      <page pageid="6172" ns="0" title="Banana by Ed Vere" />
      <page pageid="21221" ns="0" title="Barbapapa&#039;s New House by Annette Tison and Talus Taylor" />
    </pages>
  </query>
</api>