openapi: 3.0.3
info:
  title: BJ's Wholesale Club Partner Clubs Membership API
  description: BJ's Wholesale Club partner and affiliate integration API providing access to product catalog, pricing, inventory availability, membership verification, and order management capabilities. Available through BJ's partner program.
  version: 1.0.0
  contact:
    name: BJ's Wholesale Club Partner Support
    url: https://www.bjs.com/content/help-center
  termsOfService: https://www.bjs.com/content/terms-and-conditions
servers:
- url: https://api.bjs.com/v1
  description: Production
tags:
- name: Membership
paths:
  /membership/verify:
    post:
      operationId: verifyMembership
      summary: Verify Membership
      description: Verifies a BJ's membership number and returns status and tier.
      tags:
      - Membership
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MembershipVerifyRequest'
      responses:
        '200':
          description: Membership verification result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MembershipStatus'
        '404':
          $ref: '#/components/responses/NotFound'
      security:
      - ApiKeyAuth: []
components:
  schemas:
    MembershipStatus:
      type: object
      properties:
        membershipNumber:
          type: string
        status:
          type: string
          enum:
          - active
          - expired
          - suspended
        tier:
          type: string
          enum:
          - inner_circle
          - inner_circle_gold
          - business
        expirationDate:
          type: string
          format: date
        primaryMember:
          type: string
    MembershipVerifyRequest:
      type: object
      required:
      - membershipNumber
      properties:
        membershipNumber:
          type: string
          description: BJ's membership card number
        lastName:
          type: string
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-BJS-API-Key