openapi: 3.1.0
info:
  title: Interswitch Recharge Airtime 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: Airtime
paths:
  /api/v2/quickteller/categorys/4/billers:
    get:
      tags:
      - Airtime
      summary: List Airtime Telcos
      description: List billers under category 4 (airtime) — MTN, Airtel, Glo, 9mobile.
      operationId: listAirtimeTelcos
      responses:
        '200':
          description: Airtime billers.
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    billerId:
                      type: integer
                    name:
                      type: string
                    currencyCode:
                      type: string
  /api/v2/quickteller/billers/{billerId}/paymentitems:
    get:
      tags:
      - Airtime
      summary: List Airtime Denominations
      description: Returns supported denominations for the telco (e.g. MTN-100, MTN-200).
      operationId: listAirtimeDenominations
      parameters:
      - in: path
        name: billerId
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Denominations.
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    paymentItemId:
                      type: integer
                    paymentCode:
                      type: string
                    name:
                      type: string
                    amount:
                      type: integer
  /api/v2/quickteller/payments/advices:
    post:
      tags:
      - Airtime
      summary: Recharge Airtime
      operationId: rechargeAirtime
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - paymentCode
              - customerId
              - customerEmail
              - customerMobile
              - amount
              - requestReference
              properties:
                paymentCode:
                  type: string
                customerId:
                  type: string
                  description: Recipient mobile number in international format.
                customerEmail:
                  type: string
                  format: email
                customerMobile:
                  type: string
                amount:
                  type: integer
                requestReference:
                  type: string
      responses:
        '200':
          description: Recharge response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  responseCode:
                    type: string
                  transactionRef:
                    type: string
                  amount:
                    type: integer
components:
  securitySchemes:
    InterswitchAuth:
      type: apiKey
      in: header
      name: Authorization