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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="20150316182503" timestamp="2015-03-16T18:25:03Z" ns="0" title="Alteração de Tabela de Preço - NF-e" />
        <page value="20150316192455" timestamp="2015-03-16T19:24:55Z" ns="0" title="SINTEGRA - NF-e" />
        <page value="20150317120540" timestamp="2015-03-17T12:05:40Z" ns="0" title="Cadastro de Classificação Fiscal (NCM) - NF-e" />
        <page value="20150317132850" timestamp="2015-03-17T13:28:50Z" ns="0" title="Cadastro da Classificação do Item - NF-e" />
        <page value="20150317134707" timestamp="2015-03-17T13:47:07Z" ns="0" title="Cadastro de Produtos (Itens) - NF-e" />
        <page value="20150317134757" timestamp="2015-03-17T13:47:57Z" ns="0" title="Cadastro de Agrupamento de Estoque - NF-e" />
        <page value="20150317135314" timestamp="2015-03-17T13:53:14Z" ns="0" title="Consulta de Preço dos Itens - NF-e" />
        <page value="20150317135705" timestamp="2015-03-17T13:57:05Z" ns="0" title="Cadastro de Mensagem de Nota Fiscal - NF-e" />
        <page value="20150317140035" timestamp="2015-03-17T14:00:35Z" ns="0" title="Cadastro de Grupo de CFOP - NF-e" />
        <page value="20150317175551" timestamp="2015-03-17T17:55:51Z" ns="0" title="Fechamento do Estoque - NF-e" />
      </results>
    </querypage>
  </query>
</api>