The Watson services are only accessible through Bluemix for the moment. Create an account on https://console.ng.bluemix.net and then add a service instance.
The idea was that you'll also host your application in bluemix, although I think the services are actually accessible elsewhere once you create the instance in bluemix.
The idea was that you'll also host your application in bluemix, although I think the services are actually accessible elsewhere once you create the instance in bluemix.