what do you mean by that, I just tried: http://www.enclout.com/api/v1/yahoo_finance/show?auth_token=xxxxxx&text=AAPL

it works. If you want to get a JSON back, you can do:
http://www.enclout.com/api/v1/yahoo_finance/show.json?auth_token=xxxxxx&text=AAPL

You need to get the auth_token by registered at our web site first.