Sign up for an EasyPost account. Use your Test Key where the guide requires <YOUR_TEST_API_KEY>. Switch to your Production key when you’re ready to take the integration live.

Enter your carrier-specific credentials, and/or enable partnered carriers on the Carrier Account Dashboard.

Note: Unless you've entered your carrier information for other carriers, you'll just receive USPS rates.

Note: Negotiated rates are only available in Production mode.

Provide the keys to the Rates integration team.