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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="Cambrai,_Bibliothèque_municipale,_Impr._XVI_C_4" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Brüssel, Bibliothèque Royale, 1460" missing="" />
      <page pageid="1422" ns="0" title="Bamberg, Staatsbibliothek, lit. 25 (olim Ed.IV.11)" />
      <page pageid="1552" ns="0" title="Benevento, Archivio Capitolare, V 19" />
      <page pageid="1553" ns="0" title="Benevento, Archivio Capitolare, V 20" />
      <page pageid="1420" ns="0" title="Berlin, Staatsbibliothek zu Berlin Preußischer Kulturbesitz, Mus. 40047" />
      <page pageid="1358" ns="0" title="Bologna, Museo internazionale e biblioteca della musica" />
      <page pageid="1544" ns="0" title="Budapest, Egyetemi Könyvtár, lat. 118" />
      <page pageid="1545" ns="0" title="Budapest, Egyetemi Könyvtár, lat. 119" />
      <page pageid="1546" ns="0" title="Budapest, Egyetemi Könyvtár, lat. 121" />
      <page pageid="1547" ns="0" title="Budapest, Egyetemi Könyvtár, lat. 122" />
    </pages>
  </query>
</api>