This developer guide teaches you how to get access to Canada Post shipping API via Postmen. See also the list of required API credentials / keys for Canada Post integration.

Get Canada Post API Credentials

Register for a Canada Post shipper account if you do not already have one. Login to your account.
Select Business Solutions --> Ecommerce Solutions --> Developer Program
Note down the  API Key -one for development and one for production.
Use the Canada Post API key along with your Canada Post  customer-number and contract-id (optional) to generate label at Postmen. contract-id is optional for users who chose to use credit card payment for CanadaPost shipping labels.

Required Canada Post API credentials

Canada Post Developer Resources

Read Canada Post API docs
Supported Canada Post service types
Postmen Canada Post technical support:
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