Oh, I'm sorry for the confusion. I intend to download from the WIKI, which is freely accessible even without the api (but api key allows for more downloads per time frame).

Here the source I would like Zorro to access:
https://www.quandl.com/api/v3/datasets/WIKI/NVDA/data.csv

See this blog entry for some more details:
https://blog.quandl.com/getting-started-with-the-quandl-api