# Get authentication settings

This endpoint retrieves the authentication settings for a specific point of sale device.

Endpoint: GET /point-of-sales/{pointOfSaleId}/authentication-settings
Version: 1.0.0

## Path parameters:

  - `pointOfSaleId` (integer, required)
    The unique system identifier for the point of sale device.
    Example: 123456789

## Response 200 fields (application/json):

  - `hmacKey` (string,null)
    Example: "a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6"