Web:USPS API 3.0

Setup 1. Log In/Create USPS Business Account

Use the USPS Customer Onboarding Portal (COP) (https://cop.usps.com/cop-navigator?wf=API&showCC=false), sign into your USPS Business Account, or create a new USPS Business Account. The COP will ensure that your USPS Business Account is configured for the USPS APIs.

2. Log In

Log in to the USPS Developer Portal (https://developers.usps.com/saml_login) using your USPS Business Account credentials from Step 1.

3. Create an App

After logging into the Developer Portal, click the Apps button from the Menu Bar and complete the following steps to create an App:

A.Click "Add App" B.Enter your App Name (required) (e.g., KempsPrime) C.Enter your Callback URL (optional) D.Check the box to accept Terms and Conditions and Privacy Policy (this may not appear) E.Enter Description (optional) F.Select API Product (required) G.Click "Add App"

4. Retrieve your Consumer Key and Secret

Select your App and retrieve your Consumer Key and Consumer Secret from the Credentials section. These credentials are required for the next step and for generating the OAuth Token.

5. Authorize App to Access Protected Information Resources

Enter your Consumer Key here to authorize your App to access your payment accounts, permits, CRIDs, MIDs, and subscriptions, which will be required by several USPS APIs.