> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fungies.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Add product keys

> Add product keys (license keys, game keys, etc.) to an offer.
    
    Keys are automatically assigned to customers upon successful purchase.
    Each key can only be used once.



## OpenAPI

````yaml /api-reference/api-docs.yaml post /v0/offers/{offerId}/keys/add
openapi: 3.1.0
info:
  title: Fungies API v0
  version: 0.3.5
servers:
  - url: https://api.fungies.io
security: []
tags:
  - name: discounts
    description: Discounts related endpoints
  - name: keys
    description: Offer product keys related endpoints
  - name: orders
    description: Orders related endpoints
  - name: payments
    description: Payments related endpoints
  - name: offers
    description: Offers related endpoints
  - name: products
    description: Products related endpoints
  - name: subscriptions
    description: Subscriptions related endpoints
  - name: users
    description: Users related endpoints
  - name: variants
    description: Product variants related endpoints
  - name: plans
    description: Product plans related endpoints
  - name: elements
    description: Elements related endpoints
paths:
  /v0/offers/{offerId}/keys/add:
    post:
      tags:
        - offers
        - keys
      summary: Add product keys
      description: |-
        Add product keys (license keys, game keys, etc.) to an offer.
            
            Keys are automatically assigned to customers upon successful purchase.
            Each key can only be used once.
      operationId: PostV0OffersOfferIdKeysAdd
      parameters:
        - name: offerId
          in: path
          required: true
          description: POST /v0/offers/:offerId/keys/add Parameter
          schema:
            $ref: '#/components/schemas/PostV0OffersOfferIdKeysAddParameterOfferId'
      requestBody:
        description: POST /v0/offers/:offerId/keys/add Request body
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostV0OffersOfferIdKeysAddRequestBody'
      responses:
        '200':
          description: POST /v0/offers/:offerId/keys/add Positive response
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/PostV0OffersOfferIdKeysAddPositiveResponse
        '400':
          description: POST /v0/offers/:offerId/keys/add Negative response
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/PostV0OffersOfferIdKeysAddNegativeResponse
              examples:
                example1:
                  value:
                    status: error
                    error:
                      message: Sample error message
      security:
        - APIKEY_1: []
          APIKEY_2: []
components:
  schemas:
    PostV0OffersOfferIdKeysAddParameterOfferId:
      type: string
      format: uuid
    PostV0OffersOfferIdKeysAddRequestBody:
      type: object
      properties:
        productId:
          type: string
          format: uuid
        productKeys:
          type: array
          items:
            type: string
            minLength: 1
          minItems: 1
        fileName:
          type: string
      required:
        - productId
        - productKeys
    PostV0OffersOfferIdKeysAddPositiveResponse:
      type: object
      properties:
        status:
          type: string
          const: success
        data:
          type: object
          properties:
            success:
              type: boolean
          required:
            - success
      required:
        - status
        - data
    PostV0OffersOfferIdKeysAddNegativeResponse:
      type: object
      properties:
        status:
          type: string
          const: error
        error:
          type: object
          properties:
            message:
              type: string
          required:
            - message
      required:
        - status
        - error
  securitySchemes:
    APIKEY_1:
      type: apiKey
      in: header
      name: x-fngs-public-key
    APIKEY_2:
      type: apiKey
      in: header
      name: x-fngs-secret-key

````