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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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20150215051313" timestamp="2015-02-15T05:13:13Z" ns="0" title="AFT修羅の道" />
        <page value="20150215051422" timestamp="2015-02-15T05:14:22Z" ns="0" title="暗号化ファイルシステムの罠" />
        <page value="20150215053909" timestamp="2015-02-15T05:39:09Z" ns="0" title="2次方程式" />
        <page value="20150215054106" timestamp="2015-02-15T05:41:06Z" ns="0" title="一般逆行列" />
        <page value="20150215054235" timestamp="2015-02-15T05:42:35Z" ns="0" title="一般固有値" />
        <page value="20150215054441" timestamp="2015-02-15T05:44:41Z" ns="0" title="Assert" />
        <page value="20150215054541" timestamp="2015-02-15T05:45:41Z" ns="0" title="Fortranの移植性" />
        <page value="20150215062643" timestamp="2015-02-15T06:26:43Z" ns="0" title="メインページ" />
        <page value="20150215095130" timestamp="2015-02-15T09:51:30Z" ns="0" title="Αβ型漸化式" />
        <page value="20150215100338" timestamp="2015-02-15T10:03:38Z" ns="0" title="OpenMP並列プログラミング" />
      </results>
    </querypage>
  </query>
</api>