United States Postal Service Tracking API

openapi: 3.1.0
info:
  title: USPS Addresses Tracking API
  description: The USPS Addresses API validates and corrects address information, eliminating errors, improving package delivery service and package pricing. Supports address standardization, city and state lookup, and ZIP Code validation.
  version: '3.0'
  contact:
    name: USPS API Support
    url: https://developers.usps.com/
    email: https://emailus.usps.com/s/web-tools-inquiry
  x-generated-from: documentation
servers:
- url: https://apis.usps.com
  description: Production
- url: https://apis-tem.usps.com
  description: Testing Environment for Mailers (TEM)
security:
- bearerAuth: []
tags:
- name: Tracking
  description: Package tracking status and event operations
paths:
  /tracking/v3/tracking/{trackingNumber}:
    get:
      operationId: getTracking
      summary: USPS Tracking Get Package Tracking Status
      description: Returns the tracking status and complete scan event history for a given USPS tracking number. Includes delivery status, estimated delivery date, and location details for each scan event.
      tags:
      - Tracking
      parameters:
      - name: trackingNumber
        in: path
        required: true
        description: The USPS tracking number for the package.
        schema:
          type: string
        example: '9400111899223397910390'
      - name: expand
        in: query
        required: false
        description: Optional expansion for additional detail fields (e.g. SUMMARY).
        schema:
          type: string
          enum:
          - SUMMARY
          - DETAIL
        example: SUMMARY
      responses:
        '200':
          description: Tracking information returned successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TrackingResult'
              examples:
                GetTracking200Example:
                  summary: Default getTracking 200 response
                  x-microcks-default: true
                  value:
                    TrackSummary:
                      EventTime: 8:00 am
                      EventDate: March 14, 2025
                      Event: DELIVERED
                      EventCity: WASHINGTON
                      EventState: DC
                      EventZIPCode: '20212'
                      EventCountry: ''
                      FirmName: ''
                      Name: JOHN DOE
                      AuthorizedAgent: 'false'
                      DeliveryAttributeCode: '01'
                    TrackDetail:
                    - EventTime: 7:00 am
                      EventDate: March 14, 2025
                      Event: OUT FOR DELIVERY
                      EventCity: WASHINGTON
                      EventState: DC
                      EventZIPCode: '20212'
                      EventCountry: ''
        '400':
          description: Bad request - invalid tracking number format.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized - invalid or missing bearer token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Tracking number not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Too many requests - rate limit exceeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /tracking/v3/tracking:
    post:
      operationId: getMultipleTracking
      summary: USPS Tracking Get Multiple Package Tracking Status
      description: Returns tracking status for multiple USPS packages in a single request. Accepts up to 10 tracking numbers per request.
      tags:
      - Tracking
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MultipleTrackingRequest'
            examples:
              GetMultipleTrackingRequestExample:
                summary: Default getMultipleTracking request
                x-microcks-default: true
                value:
                  trackingNumbers:
                  - '9400111899223397910390'
                  - '9400111899223397910407'
      responses:
        '200':
          description: Tracking information returned for all requested packages.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MultipleTrackingResult'
              examples:
                GetMultipleTracking200Example:
                  summary: Default getMultipleTracking 200 response
                  x-microcks-default: true
                  value:
                    trackingResults:
                    - trackingNumber: '9400111899223397910390'
                      status: DELIVERED
                      deliveryDate: '2025-03-14'
                    - trackingNumber: '9400111899223397910407'
                      status: IN_TRANSIT
                      deliveryDate: '2025-03-15'
        '400':
          description: Bad request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    MultipleTrackingResult:
      type: object
      description: Tracking results for multiple packages.
      properties:
        trackingResults:
          type: array
          description: List of tracking results per tracking number.
          items:
            type: object
            properties:
              trackingNumber:
                type: string
                description: The tracking number.
                example: '9400111899223397910390'
              status:
                type: string
                description: Current delivery status.
                example: DELIVERED
              deliveryDate:
                type: string
                format: date
                description: Actual or estimated delivery date.
                example: '2025-03-14'
    Error:
      type: object
      description: API error response.
      properties:
        apiVersion:
          type: string
          description: API version.
          example: '3.2'
        error:
          type: object
          properties:
            code:
              type: string
              description: Error code.
              example: TRACK_ERR_001
            message:
              type: string
              description: Error message.
              example: Tracking number not found
            errors:
              type: array
              items:
                type: object
                properties:
                  status:
                    type: string
                    example: '404'
                  title:
                    type: string
                    example: Not Found
                  detail:
                    type: string
                    example: The tracking number provided was not found in the system.
    TrackingResult:
      type: object
      description: Tracking result for a single package.
      properties:
        TrackSummary:
          $ref: '#/components/schemas/TrackingEvent'
          description: Most recent tracking event summary.
        TrackDetail:
          type: array
          description: Full list of historical tracking events.
          items:
            $ref: '#/components/schemas/TrackingEvent'
    TrackingEvent:
      type: object
      description: A single tracking scan event for a package.
      properties:
        EventTime:
          type: string
          description: Time of the tracking event.
          example: 8:00 am
        EventDate:
          type: string
          description: Date of the tracking event.
          example: March 14, 2025
        Event:
          type: string
          description: Description of the tracking event.
          example: DELIVERED
        EventCity:
          type: string
          description: City where the event occurred.
          example: WASHINGTON
        EventState:
          type: string
          description: State where the event occurred.
          example: DC
        EventZIPCode:
          type: string
          description: ZIP Code of the event location.
          example: '20212'
        EventCountry:
          type: string
          description: Country where the event occurred (empty for domestic).
          example: ''
        FirmName:
          type: string
          description: Company name for business deliveries.
          example: ''
        Name:
          type: string
          description: Recipient name if available.
          example: JOHN DOE
        AuthorizedAgent:
          type: string
          description: Whether delivered to an authorized agent.
          example: 'false'
        DeliveryAttributeCode:
          type: string
          description: Code indicating delivery type or condition.
          example: '01'
    MultipleTrackingRequest:
      type: object
      description: Request body for multiple package tracking.
      required:
      - trackingNumbers
      properties:
        trackingNumbers:
          type: array
          description: List of USPS tracking numbers to look up (max 10).
          items:
            type: string
          example:
          - '9400111899223397910390'
          - '9400111899223397910407'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: OAuth 2.0 Bearer Token obtained from the USPS OAuth API.
externalDocs:
  description: USPS Addresses API Documentation
  url: https://developers.usps.com/addressesv3