Click the EasyPost option => Enter and save the Test and Production/Live keys
Make sure you're toggled to "Production Mode"
Click "SAVE SETTINGS"To get started, please make sure your EasyPost account is funded. To do so, log into EasyPost.com and add a billing method and select the amount to replenish and the amount which triggers the replenishment. i.e. once your balance hits $50, add $100.