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HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Residual_Alkalinity_illustrated" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1803" ns="0" title="Beer color, alkalinity and mash pH" />
      <page pageid="1" ns="0" title="Braukaiser.com" />
      <page pageid="1526" ns="0" title="Effects of mash parameters on fermentability and efficiency in single infusion mashing" />
      <page pageid="1678" ns="0" title="German Brewing between 1850 and 1900" />
      <page pageid="1647" ns="0" title="German Brewing between 1850 and 1900 : Malting and Wort Production" />
      <page pageid="1719" ns="0" title="How pH affects brewing" />
      <page pageid="1906" ns="0" title="Main Page" />
      <page pageid="1470" ns="0" title="Making Plates and Slants" />
      <page pageid="1923" ns="0" title="Mash pH illustrated" />
      <page pageid="1994" ns="0" title="PWM Coltrolled Stir Plate Design" />
    </pages>
  </query>
</api>