VigLink (Sovrn Commerce) Product Coupons API

openapi: 3.2.0
info:
  title: Product Coupons API
  version: 1.0.0
  description: Returns product-specific promo codes for a given retailer product URL. Responses include verified and unverified coupon codes, merchant metadata, and scan status indicating whether verification is in progress.
  x-source: https://developer.sovrn.com/llms.txt (per-endpoint OpenAPI definitions, harvested 2026-07-21)
servers:
- url: https://viglink.io/coupons
  description: Product Coupons API
tags:
- name: Product Coupons
paths:
  /product:
    get:
      summary: Product coupons by URL
      description: Returns verified and unverified coupon codes for a specific product URL, along with merchant information and verification status.
      tags:
      - Product Coupons
      security:
      - SecretKey: []
      parameters:
      - name: api_key
        in: query
        required: true
        description: 'Site API key for the site requesting coupons.

          '
        schema:
          type: string
        example: b5d593ce9de90b8a324ca24e5fcc32af
      - name: product_url
        in: query
        required: true
        description: 'Original retailer product page URL. Must not be an affiliate or redirect URL.

          '
        schema:
          type: string
          format: url
        example: https://www.kiehls.com/3605970407964.html
      - name: include_unverified
        in: query
        required: false
        description: 'Whether to include unverified coupon codes after verified results. Defaults to true.

          '
        schema:
          type: boolean
          default: true
        example: true
      - name: cuid
        in: query
        required: false
        description: 'Custom identifier used to associate the click with a user, page, campaign, or event.

          '
        schema:
          type: string
        example: cuid152
      - name: utm_source
        in: query
        required: false
        description: Identifies the source of the traffic (e.g., website, newsletter, twitter).
        schema:
          type: string
      - name: utm_medium
        in: query
        required: false
        description: Identifies the marketing medium (e.g., email, social, banner).
        schema:
          type: string
      - name: utm_campaign
        in: query
        required: false
        description: Identifies the campaign name, promotion, or initiative.
        schema:
          type: string
      - name: utm_term
        in: query
        required: false
        description: Identifies paid search keywords or targeting terms.
        schema:
          type: string
      - name: utm_content
        in: query
        required: false
        description: Differentiates similar links or placements on the same page.
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved coupon code.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProductCouponsResponse'
              examples:
                unverifiedExample:
                  summary: Example response with unverified coupons
                  value:
                    merchant:
                      domain: kiehls.com
                      group_id: 2528
                      group_name: Kiehl's
                      logo_url: https://images.viglink.com/merchant/logo/official/240x120/kiehl-s/922daea08e0d6b4e23cf16843bf89e5b5d68d367.png?url=http%3A%2F%2Fwww.viglink.com%2Fmerchants%2F2528.gif&text=Kiehl%27s&logoId=1633
                    scan:
                      verification_active: false
                      when_to_check_back: 3600
                    coupons:
                    - id: 0d5c0846d5430357e07820f153040c36
                      code: WELCOME20
                      currency: USD
                      verified: true
                      affiliated_url: https://redirect.viglink.com/...
                      original_price: 52
                      price_with_code: 41.6
                      verified_at: '2026-02-06T15:18:11.746Z'
                      code_description: null
        '400':
          description: Invalid request parameters.
        '401':
          description: Unauthorized.
        '404':
          description: Resource not found.
        '500':
          description: Internal server error.
      operationId: getProduct
      x-operation-id-source: derived
components:
  schemas:
    ProductCouponsResponse:
      type: object
      required:
      - merchant
      - scan
      - coupons
      properties:
        merchant:
          $ref: '#/components/schemas/Merchant'
        scan:
          $ref: '#/components/schemas/Scan'
        coupons:
          type: array
          description: 'Ranked list of coupon codes. Verified coupons appear first, followed by unverified codes.

            '
          items:
            $ref: '#/components/schemas/Coupon'
    Merchant:
      type: object
      required:
      - domain
      - group_id
      - group_name
      properties:
        domain:
          type: string
          example: kiehls.com
        group_id:
          type: integer
          format: int64
          example: 2528
        group_name:
          type: string
          example: Kiehl's
        logo_url:
          type:
          - string
          - 'null'
          format: url
    Coupon:
      type: object
      required:
      - id
      - code
      - affiliated_url
      - currency
      - verified
      properties:
        id:
          type: string
          description: Sovrn coupon identifier.
          example: f556475089750904030e28ad62c6727f
        code:
          type: string
          description: Promo code text.
          example: WELCOME20
        affiliated_url:
          type: string
          format: url
          description: 'Affiliate redirect URL with tracking parameters applied.

            '
        original_price:
          type:
          - number
          - 'null'
          format: double
          description: Original product price.
          example: 52
        price_with_code:
          type:
          - number
          - 'null'
          format: double
          description: 'Final price after applying the code. May be null while verification is in progress.

            '
          example: 41.6
        currency:
          type: string
          description: ISO 4217 currency code.
          example: USD
        verified:
          type: boolean
          description: Whether the code has been verified to work.
          example: true
        verified_at:
          type:
          - string
          - 'null'
          format: date-time
          description: 'Timestamp when the code was last verified. May be null if not yet verified.

            '
          example: '2026-02-06T15:18:11.746Z'
        code_description:
          type:
          - string
          - 'null'
          description: 'Best-effort description of the promotion. May be null or inaccurate.

            '
    Scan:
      type: object
      required:
      - verification_active
      - when_to_check_back
      properties:
        verification_active:
          type: boolean
          description: 'Indicates whether coupon verification is currently running.

            '
          example: false
        when_to_check_back:
          type: integer
          format: int32
          description: 'Recommended delay (in seconds) before polling again.

            '
          example: 3600
  securitySchemes:
    SecretKey:
      type: apiKey
      in: header
      name: Authorization
      description: 'Authorization header using the Secret Key scheme. Format: "secret <SECRET_KEY>".

        '