...
To access ECMWF you will need an API key. For that you first need to login at httphttps://apps.ecmwf.int/auth/login/ and then retrieve you key at httphttps://api.ecmwf.int/v1/key/. For this, you will need to have an account on ECMWF web site. Copy the information in this page and paste it in the file $HOME/.ecmwfapirc.
...