generated: '2026-07-18'
method: searched
source: openapi/apurata-acuotaz-pos-openapi.yml
docs: https://docs.apurata.com/POS/rest_api/authentication/
summary:
  types:
  - http
  - apiKey
  api_key_in:
  - header
  notes: >-
    aCuotaz uses a per-merchant secret token as an HTTP Bearer credential over
    mandatory HTTPS. Two additional header credentials appear on specific
    operations: Client_id (identifies the merchant for the checkout widget
    endpoints) and X-Unique-Token (an idempotency token required on refunds).
    Webhooks delivered by Apurata carry their own Apurata-Auth Bearer header that
    the merchant validates. There is no OAuth surface.
schemes:
- name: bearerAuth
  type: http
  scheme: bearer
  description: 'Merchant secret token issued by Apurata, sent as Authorization: Bearer <secret_token>. HTTPS is mandatory.'
  applies_to: all /pos/order and /pos/client operations
  sources:
  - openapi/apurata-acuotaz-pos-openapi.yml
- name: clientIdHeader
  type: apiKey
  in: header
  parameter_name: Client_id
  description: Merchant client id used to authenticate the checkout widget endpoints (pay-with-apurata-add-on, info-steps).
  sources:
  - openapi/apurata-acuotaz-pos-openapi.yml
- name: uniqueTokenHeader
  type: apiKey
  in: header
  parameter_name: X-Unique-Token
  description: Caller-generated idempotency token required on total-refund and partial-refund to prevent duplicate refunds.
  sources:
  - openapi/apurata-acuotaz-pos-openapi.yml
- name: webhookAuth
  type: http
  scheme: bearer
  parameter_name: Apurata-Auth
  description: >-
    Bearer credential Apurata includes on outbound webhook POSTs
    (header "Apurata-Auth: Bearer <secret_token>"); merchant validation is
    optional but recommended.
  direction: inbound-to-merchant
  sources:
  - https://docs.apurata.com/POS/webhooks/