get
https://sandbox.ecartpay.com/api/billings/providers//nifs/keys
This endpoint returns the API key for a specific NIF and in a specific environment. You need to add your NIF management API key provided by Verifacti to your Ecart Pay account through the Billing Gateways settings. NIF management API keys start with vfn_.
Visit our Documentation to learn more about NIFs Management.