---
title: "Verify a passkey registration response + persist the credential"
method: POST
path: "/auth/passkey/verify-enroll"
tags: ["Auth"]
---

# Verify a passkey registration response + persist the credential

`POST /auth/passkey/verify-enroll`

## Request

- Base URL: `https://api.mnemom.ai/v1`
- URL: `https://api.mnemom.ai/v1/auth/passkey/verify-enroll`
- Auth: one of:
  - API key in cookie `mnemom_session`
  - HTTP bearer

Authenticated endpoint. Consumes the challenge issued by `/auth/passkey/enroll`, verifies the attestation via `@simplewebauthn/server`, and inserts a row into `user_passkeys`. A user-supplied `friendly_name` is stored alongside for UI display.

## Request body

- object
  - `response` RegistrationResponseJSON, required: Browser's `navigator.credentials.create()` response, JSON-serialized per the WebAuthn Level 3 JSON form.
    - `id` string, required
    - `rawId` string, required
    - `type` 'public-key', required
    - `response` object, required
    - `clientExtensionResults` object
    - `authenticatorAttachment` string
  - `friendly_name` string: User label (e.g. "Alex's iPhone").

## Response `200`

Passkey enrolled.

- object
  - `credential_id` string
  - `friendly_name` string, nullable
  - `device_type` 'single_device' | 'multi_device'
  - `backed_up` boolean

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `403`: Forbidden
- `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)