Hi, The following query: import module namespace http = "http://expath.org/ns/http-client"; http:send-request( <http:request href="http://google.com/" method="get"/>) returns the following error: Error: [XQST0059] Unknown module for namespace "http://expath.org/ns/http-client". The following one though is successful (even though it is not correct according to the HTTP Client spec) (note the element namespace and the function namespace are different): import module namespace http = "http://expath.org/ns/http"; declare namespace h = "http://expath.org/ns/http-client"; http:send-request( <h:request href="http://google.com/" method="get"/>) Regards, -- Florent Georges http://fgeorges.org/ http://h2oconsulting.be/