<client name="Acme">http://example.blinksale.com/clients/2</client> <number>100001</number> <date>2006-09-19</date> <terms due_date="2006-10-04">15</terms> <currency>USD</currency> <tags>brian, consulting</tags> </invoice> (...) </invoices> To get invoice lists in other formats, just change your Accept header. For Atom , use application/atom+xml . For iCalendar , use text/calendar . The invoice list contains abbreviated information for each invoice, and a link to the full