# Request to verify MFA using sms

Verify multi-factor authentication (MFA) using an SMS-based device.

This endpoint confirms the SMS MFA challenge as part of the authentication or step-up verification process for a specific registered device.

Path parameters:
- deviceId: The unique identifier of the SMS MFA device being verified.

Request body must include:
- mfaToken: Token provided during the authentication or challenge flow.

Use this endpoint to complete SMS-based MFA verification for the specified device.

Endpoint: POST /resources/auth/v1/user/mfa/sms/{deviceId}
Security: bearer

## Path parameters:

  - `deviceId` (string, required)

## Request fields (application/json):

  - `mfaToken` (string, required)