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="Boklådan" />
  </query-continue>
  <query>
    <pages>
      <page pageid="903" ns="0" title="B. Traven" />
      <page pageid="4297" ns="0" title="Bakunin, Michail: Gud och staten" />
      <page pageid="5517" ns="0" title="Balestrini, Nanni: Vogliamo tutto" />
      <page pageid="285" ns="0" title="Baron, Samuel H. : Bloody Saturday in the Soviet Union – Novocherkassk 1962" />
      <page pageid="3274" ns="0" title="Bayer, Osvaldo: Los anarquistas expropiadores" />
      <page pageid="4935" ns="0" title="Bayo, Eliseo: Los atentados contra Franco" />
      <page pageid="1708" ns="0" title="Blockad av vägbygge i Uppgrenna" />
      <page pageid="5322" ns="0" title="Bogdanska, Daria: Wage Slaves" />
      <page pageid="2491" ns="0" title="Bokcafét i Jönköping" />
      <page pageid="1195" ns="0" title="Bokförlaget Oktober" />
    </pages>
  </query>
</api>