openapi: 3.0.3
info:
  title: AT&T Enterprise Connectivity APIs Device Status Service Qualification API
  description: Enterprise-grade APIs for AT&T wireline business services including service qualification, quoting, ordering, and provisioning. The Alliance API suite supports automated ordering of AVPN, IPBB, ATTPhone, ASE, and AT&T Internet Air for Business services.
  version: 1.0.0
  contact:
    name: AT&T Alliance Developer Portal
    url: https://devex-web.att.com/alliance
  termsOfService: https://www.att.com/gen/general?pid=11561
servers:
- url: https://devex-web.att.com
  description: AT&T Enterprise API Server
security:
- oauth2: []
tags:
- name: Service Qualification
  description: Check service availability at a location
paths:
  /alliance/serviceQualification/v1/check:
    post:
      operationId: checkServiceQualification
      summary: Check AT&T Service Qualification
      description: Determine which AT&T wireline services (AVPN, IPBB, ATTPhone, ASE, Internet Air for Business) are available at a given location.
      tags:
      - Service Qualification
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ServiceQualificationRequest'
            examples:
              check:
                summary: Check Service at Address
                value:
                  address:
                    streetAddress: 208 S Akard St
                    city: Dallas
                    state: TX
                    postalCode: '75202'
                    country: US
      responses:
        '200':
          description: Service qualification results
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceQualificationResponse'
              examples:
                available:
                  summary: Services Available
                  value:
                    qualificationId: qual_abc123
                    qualificationDate: '2026-04-19'
                    serviceQualificationItems:
                    - id: item_001
                      state: done
                      serviceSpecification:
                        name: AVPN
                      eligibilityUnavailabilityReason: null
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    ServiceQualificationResponse:
      type: object
      properties:
        qualificationId:
          type: string
          description: Unique qualification check identifier
        qualificationDate:
          type: string
          format: date
          description: Date the qualification was performed
        serviceQualificationItems:
          type: array
          items:
            $ref: '#/components/schemas/ServiceQualificationItem'
    Address:
      type: object
      required:
      - streetAddress
      - city
      - state
      - postalCode
      - country
      properties:
        streetAddress:
          type: string
          description: Street address line
        city:
          type: string
          description: City name
        state:
          type: string
          description: State abbreviation (US)
        postalCode:
          type: string
          description: ZIP or postal code
        country:
          type: string
          description: ISO 3166-1 alpha-2 country code
    ServiceQualificationItem:
      type: object
      properties:
        id:
          type: string
          description: Item identifier
        state:
          type: string
          enum:
          - done
          - terminatedWithError
          description: Qualification state for this service
        serviceSpecification:
          type: object
          properties:
            name:
              type: string
              enum:
              - AVPN
              - IPBB
              - ATTPhone
              - ASE
              - InternetAirBusiness
              description: Service specification name
        eligibilityUnavailabilityReason:
          type: string
          nullable: true
          description: Reason service is unavailable (null if available)
    ErrorResponse:
      type: object
      properties:
        code:
          type: string
          description: Error code
        reason:
          type: string
          description: Error reason
        message:
          type: string
          description: Detailed error message
    ServiceQualificationRequest:
      type: object
      required:
      - address
      properties:
        address:
          $ref: '#/components/schemas/Address'
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://devex-web.att.com/oauth/token
          scopes:
            enterprise: Access AT&T enterprise connectivity APIs