USPS Web Tools: Domestic Mail Service API

api

api_key

ecommerce messaging

API for USPS domestic mail services via Web Tools. Base: secure.shippingapis.com

https://secure.shippingapis.com

Resources

docswww.usps.com/business/web-tools-apis/ ↗

homepagewww.usps.com/business/web-tools-apis/ ↗

API endpoints

full doc /v1/registry/usps-web-tools-domestic-mail-service-api