openapi: 3.1.0
info:
  title: Interswitch Recharge Airtime Payment Items API
  description: 'Virtual top-up (direct airtime and data) and e-pin voucher delivery for

    MTN, Airtel, Glo, and 9mobile. Same biller / category / payment-item flow

    as Bills Payment; category ID `4` is reserved for airtime billers and the

    customer''s phone number is supplied as `customer_id` on the payment advice.

    '
  version: '2024-01-01'
servers:
- url: https://sandbox.interswitchng.com
  description: Sandbox
- url: https://saturn.interswitchng.com
  description: Production
security:
- InterswitchAuth: []
tags:
- name: Payment Items
paths:
  /api/v2/quickteller/billers/{billerId}/paymentitems:
    get:
      tags:
      - Payment Items
      summary: List Biller Payment Items
      description: Returns supported amounts, packages, or denominations for the biller (e.g. DSTV Compact, MTN-100 airtime).
      operationId: listBillerPaymentItems
      parameters:
      - in: path
        name: billerId
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Payment items.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/PaymentItem'
components:
  schemas:
    PaymentItem:
      type: object
      properties:
        paymentItemId:
          type: integer
        paymentCode:
          type: string
        name:
          type: string
        amount:
          type: integer
        currencyCode:
          type: string
        isAmountFixed:
          type: boolean
  securitySchemes:
    InterswitchAuth:
      type: apiKey
      in: header
      name: Authorization