# Perform MFA

`POST /omni/oneToN/mfa` · [developer.incode.com ↗](https://developer.incode.com/reference/introduction)

> Perform MFA

This method is used for confirming user identity by sending last four digits of his phone number. transactionId which was received in [/omni/oneToN/identify](#/Login/oneToNIdentify) response should be used.

## Authentication

| Header | Required | Notes |
|---|---|---|
| `x-api-key` | yes | API key for the region/environment. |
| `api-version` | yes | API version, defaults to `1.0`. |

**Category:** Onboarding

## Sources

- Public reference: <https://developer.incode.com/reference/introduction>
- Reconstructed from the Incode Omni OpenAPI spec (operation `oneToNMfa`); see the Implementation pane for source & tests.