Frequently Asked Questions

USPS API
Last Updated 8 months ago

  1. Step 1: Register. ...
  2. Step 2: Obtain a Merchandise Return Service Permit. ...
  3. Step 3: Request Label API Permissions. ...
  4. Step 4: Submit Sample Custom Labels to USPS for Label Certification. ...
  5. Step 5: Address API Permissions. ...
  6. Step 6: Run “Live” XML from Production Server. ...
  7. Step 7: Maintain 95% Printer Quality or Lose Access.

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