---
title: "Complete MFA step-up or enrollment"
method: POST
path: "/auth/mfa/verify"
tags: ["Auth"]
---

# Complete MFA step-up or enrollment

`POST /auth/mfa/verify`

## Request

- Base URL: `https://api.mnemom.ai/v1`
- URL: `https://api.mnemom.ai/v1/auth/mfa/verify`
- Auth: API key in cookie `mnemom_session`

Sign-in flow: consumes the `mnemom_mfa_pending` cookie, verifies the TOTP code, and issues a full `mnemom_session` — unless the user's email domain now enforces SSO (403 `sso_required`, or 503 `sso_check_unavailable` when the SSO lookup fails), re-checked because the pending cookie outlives the sign-in check. Enrollment flow: verifies a freshly-enrolled factor using the current session and upgrades it to aal2.

## Request body

- object
  - `factor_id` string, required
  - `challenge_id` string, required
  - `code` string, required: 6-digit TOTP code.

## Response `200`

Full session issued. Response sets `mnemom_session` cookie.

- object
  - `user` User, required: Supabase user shape. Fields beyond `id` and `email` are passthrough.
    - `id` string, uuid
    - `email` string, email
    - `app_metadata` object
    - `user_metadata` object

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `403`: Forbidden
- `422`: Request was well-formed but semantically invalid (e.g., business-rule validation failure, malformed YAML inside a JSON payload).
- `429`: Rate-limit exceeded. The global per-IP limiter (100 requests/minute, applied to every `/v1/*` route) rejected this request. Back off until the window resets — `Retry-After` carries the cooldown in seconds and `X-RateLimit-Reset` the absolute reset time.
- `500`: Server error — request was well-formed but the server failed to fulfill it. Typically a downstream dependency (DB / RPC / external API) returned an unexpected error.
- `503`: An upstream dependency is currently unavailable. The request was not processed; retry after the cooldown window.

---

[API](https://skmtc.dev/mnemom/apis/mnemom-api.md) · [All operations](https://skmtc.dev/mnemom/apis/mnemom-api/llms.txt) · [OpenAPI document](https://skmtc.dev/mnemom/apis/mnemom-api/revisions/274b7a6ea182?raw)