Cuenca-python has configurations values, with sensible defaults. The authentication has a configure the credentials for the client, the way to configure is to set the :file:`CUENCA_API_KEY` and :file:`CUENCA_API_SECRET` environment variables. The client library will automatically configure based on the values of those variables.
To configure manually:
import cuenca
cuenca.configure(api_key='PKxxxx', api_secret='yyyyyy')