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HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages gaifrom="Ab belt 1456.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="15888" ns="6" title="File:5S,5 S 1146.jpg" />
      <page pageid="16157" ns="6" title="File:5S,5 S 1334.jpg" />
      <page pageid="16012" ns="6" title="File:5S,5 S 2703.jpg" />
      <page pageid="2201" ns="6" title="File:800 numbers, Vanity numbers 4365.jpg" />
      <page pageid="30954" ns="6" title="File:ACN France,ACN INC 1003.jpg" />
      <page pageid="31777" ns="6" title="File:ACN France,ACN INC 4175.jpg" />
      <page pageid="31653" ns="6" title="File:ACN France,ACN INC 4564.jpg" />
      <page pageid="15959" ns="6" title="File:Ab Belt Reviews,Contour Abs,My Diet Area 1353.jpg" />
      <page pageid="15956" ns="6" title="File:Ab Belt Reviews,Contour Abs,My Diet Area 1356.jpg" />
      <page pageid="16214" ns="6" title="File:Ab Belt Reviews,Contour Abs,My Diet Area 2459.jpg" />
    </pages>
  </query>
</api>