openapi: 3.0.3
info:
  title: Union Pacific Account API
  version: '1.0'
  description: The Union Pacific API provides developers and businesses with programmatic access to real-time railroad supply chain data and operational actions. The API enables shipment tracking, equipment management, order placement, case management, and intermodal planning. APIs are structured as data objects (building blocks) that can be used standalone or combined to create more robust supply chain workflows. Authentication uses OAuth 2.0 token-based flow with Client Credentials.
  contact:
    name: Union Pacific API Support
    email: apisupport@up.com
  x-generated-from: documentation
  x-last-validated: '2026-05-03'
servers:
- url: https://api.up.com
  description: Union Pacific API
security:
- oauth2: []
tags:
- name: Account
  description: Access company account information
paths:
  /account:
    get:
      operationId: listAccounts
      summary: List Accounts
      description: Retrieve company account information associated with the authenticated user.
      tags:
      - Account
      responses:
        '200':
          description: List of accounts
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Account'
        '401':
          description: Unauthorized
components:
  schemas:
    Account:
      type: object
      description: Union Pacific customer account
      properties:
        accountId:
          type: string
          description: Unique account identifier
        name:
          type: string
          description: Account name
        type:
          type: string
          description: Account type
        status:
          type: string
          description: Account status