generated: '2026-07-11' method: derived source: openapi/ncr-voyix-commerce-platform-openapi.yml summary: types: - apiKey api_key_in: - header schemes: - name: hmacAccessKey type: apiKey in: header parameter: Authorization description: 'AccessKey (HMAC) authentication. The Authorization header carries "AccessKey {sharedKey}:{signature}", where the signature is a Base64 SHA-512 HMAC computed over the HTTP method, encoded request path and query string, Content-Type, optional Content-MD5, optional nep-application-key, and optional nep-correlation-id, keyed by the secret key concatenated with the ISO-8601 request date. A Date header ' sources: - openapi/ncr-voyix-commerce-platform-openapi.yml