APIs

Receive a comprehensive list of pricing, service standards, and shipping options for USPS products within a single API call.

This API allows customers to create and mange their subscriptions for any adjustments on their packages.  This also includes the listener URL specifications for the webhook to receive adjustment event notifications per package.

Adjustments are any changes or discrepancies detected in the mailstream against a package's manifested characteristics that affect the package's pricing.  For example, if a package was manifested with one weight and mailed with another, an adjustment may be issued for the difference in pricing.

Create a subscription to receive tracking events by mailer ID or tracking number. Manage all tracking subscriptions, in one place, by providing your server URL to receive Postal Service tracking events.  This also includes the listener URL specifications for the webhook to receive tracking notifications per package.

This is a preview of the modernized Subscriptions - Tracking API, where the notification event payload follows the modernized Tracking API response. The modernized API introduces the Scan Event Extract tracking event type for MID-based subscriptions, which includes additional attributes in the notification event payload . Create a subscription to receive tracking events by mailer ID or tracking number. Manage all tracking subscriptions, in one place, by providing your server URL to receive Postal Service tracking events.

This API returns tracking status and related details for a given USPS package, including scan events and their date, time, and location. The Tracking APIs allow you to integrate the status of your shipment into your customer-facing experience and internal fulfillment processes that will benefit your company by:

• Providing your customers with the latest status and delivery expectations while keeping them within your company’s or organization’s website.

• Integrating status and delivery information for incoming packages or customer returns directly into your systems and processes so that you know when a package will arrive at your facilities.

This is a preview of the modernized Tracking API. This API returns tracking status and related details for a given USPS package, including scan events and their date, time, and location. The Tracking APIs allow you to integrate the status of your shipment into your customer-facing experience and internal fulfillment processes that will benefit your company by:

• Providing your customers with the latest status and delivery expectations while keeping them within your company’s or organization’s website.

• Integrating status and delivery information for incoming packages or customer returns directly into your systems and processes so that you know when a package will arrive at your facilities.