> ## Documentation Index > Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt > Use this file to discover all available pages before exploring further. # Start enrolling a required MFA factor > Starts the enrollment of the factor an organization requires, for a login refused with 401 AUT-0019. Public: authenticated by the enrollment-only mfaToken of that refusal. For an authenticator app the answer carries the secret and the otpauth URL; for an email the code is sent to the account's own address. The recovery code is shown once. The server keeps the secret, so confirm sends only the passcode. A challenge token is not an enrollment token (AUT-0017). ## OpenAPI ````yaml /es/openapi/v3-current/AM-auth.yaml post /v1/login/mfa/setup openapi: 3.1.0 info: contact: name: Lerian Studio url: https://lerian.studio description: OpenAPI 3.1 surface for the Access Manager auth component. license: name: Lerian Studio General License title: Access Manager Auth API version: v1 servers: - url: https://auth.sandbox.lerian.net security: [] tags: - description: >- OAuth2 token issuance: request an access token, refresh it, and log out. Public issuer endpoints. name: OAuth - description: >- Single sign-on through the tenant's identity provider: discover how an email signs in, then start the login. Public, called by the browser before login. name: SSO - description: >- Multi-factor authentication challenge and verification during the login flow. Public (identity is carried by the MFA token, not a Bearer token). name: MFA - description: >- Token-secured routes: enforce a permission, list the caller's permissions, and fetch OIDC user info. Require a Bearer token, validated in the use case. name: User Permission paths: /v1/login/mfa/setup: post: tags: - MFA summary: Start enrolling a required MFA factor description: >- Starts the enrollment of the factor an organization requires, for a login refused with 401 AUT-0019. Public: authenticated by the enrollment-only mfaToken of that refusal. For an authenticator app the answer carries the secret and the otpauth URL; for an email the code is sent to the account's own address. The recovery code is shown once. The server keeps the secret, so confirm sends only the passcode. A challenge token is not an enrollment token (AUT-0017). operationId: setupMFAEnrollment requestBody: content: application/json: schema: $ref: '#/components/schemas/MFASetupInput' required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/MFASetupResponse' description: OK '422': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unprocessable Entity '500': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Internal Server Error '503': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Service Unavailable default: content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Error components: schemas: MFASetupInput: additionalProperties: false properties: mfaToken: description: The enrollment-only token of a 401 AUT-0019 refusal. examples: - eyJhbGciOiJIUzI1NiJ9... type: string mfaType: description: >- The factor to enroll: one of the availableMethods of the AUT-0019 refusal. enum: - app - email examples: - app type: string required: - mfaToken - mfaType type: object MFASetupResponse: additionalProperties: false properties: mfaType: examples: - app type: string recoveryCodes: description: The recovery code to show once and ask the person to keep. items: type: string type: - array - 'null' secret: description: The authenticator secret for manual entry. App only. examples: - JBSWY3DPEHPK3PXP type: string url: description: The otpauth URI to render as a QR code. App only. examples: - otpauth://totp/Lerian:ana?secret=JBSWY3DPEHPK3PXP type: string required: - mfaType - recoveryCodes type: object Detail: additionalProperties: true properties: code: description: >- Stable, machine-readable domain error code scoped to the emitting service (format: -NNNN). type: string detail: description: >- A human-readable explanation specific to this occurrence of the problem. examples: - Property foo is required but is missing. type: string errors: description: Optional list of individual error details items: $ref: '#/components/schemas/ErrorDetail' type: - array - 'null' instance: description: >- A URI reference that identifies the specific occurrence of the problem. examples: - https://example.com/error-log/abc123 format: uri type: string status: description: HTTP status code examples: - 400 format: int64 type: integer title: description: >- A short, human-readable summary of the problem type. This value should not change between occurrences of the error. examples: - Bad Request type: string type: default: about:blank description: A URI reference to human-readable documentation for the error. examples: - https://example.com/errors/example format: uri type: string upstream: $ref: '#/components/schemas/Upstream' description: >- RFC 9457 extension member: the error a proxied third-party provider reported. Absent unless the emitting service explicitly surfaced one. type: object ErrorDetail: additionalProperties: false properties: location: description: >- Where the error occurred, e.g. 'body.items[3].tags' or 'path.thing-id' type: string message: description: Error message text type: string value: description: The value at the given location type: object Upstream: additionalProperties: false properties: code: description: The upstream provider's own error code, verbatim. examples: - E4001 type: string message: description: >- The upstream provider's own error message, verbatim (bounded, never its raw response body). examples: - account not found at provider type: string type: object ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.