With Proteria CloudConnect API you can import orders or shipments to Proteria Freight, and you decide whether the labels should be automatically completed or if you want to use the web frontend to complete the shipments.
Click here to find API documentation
If you are simply looking for the API key belonging to your Proteria login you find this as follows:
If you need a user to test our CloudConnect API - simply contact us on the form below and we will set you up with a test account.