a GUI JavaBase currency rate scraper by B4J its simlpy easy to use, just download it
-run on windows or linux with desktop interface
-enter your target url
-enter your webservice url
-enter your webservice passwrod
-enter your HtmlDom code to grabe the currecny rate
your webservice is just need to receive 2 parameter over post request
pw = password ( that you define in app when you run)
cu = currency rate !
thats all