I did not create an account, so I could not try this, but if the error message says "user agent is a required field", then I assume that the service requires setting the User-AgentHTTP request header .
JsonProvider, - JSON, ( yp.json), :
type Yp = JsonProvider<"yp.json">
( ), Http.RequestString, headers - , User-Agent:
let response =
Http.RequestString("http://httpbin.org/user-agent", headers=["user-agent", "test"])
Yp.Parse(response) ( Load URL-, ).