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The Delievery Information API is used to check estimated delivery times prior to mailing or check delivery status after mailing. The API lets you access the following tools: Track & Confirm, Priority Mail Service Standards, Package Service Standards, and Express Mail Service Commitments.


  • Choreos
    • USPS.DeliveryInformationAPI.ExpressMailServiceRequest

      Request USPS Express Mail shipping information for a given origin and destination.

    • USPS.DeliveryInformationAPI.PackageServicesRequest

      Request USPS Parcel Post, Bound Printed Matter, Library Mail, or Media Mail shipping information for a given origin and destination.

    • USPS.DeliveryInformationAPI.PriorityMailServiceRequest

      Request USPS Priority Mail shipping information for a given origin and destination.

    • USPS.DeliveryInformationAPI.TrackConfirm

      Request tracking information for a package with a given tracking id.

    • USPS.DeliveryInformationAPI.TrackConfirmFields

      Track a package sent via USPS and return tracking information with details in separate XML tags.

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