---
title: "Finish passkey registration"
method: POST
path: "/auth/passkeys/register/finish"
tags: ["Authentication"]
---

# Finish passkey registration

`POST /auth/passkeys/register/finish`

Verify a WebAuthn attestation and save the credential bound to its registration challenge

## Request body

- InternalHandlersAuthFinishPasskeyRegistrationRequest
  - `credential` integer[], required
  - `label` string
  - `requestId` string, required

## Response `200`

Success

- GithubComAlchemillahqSylveInternalAPIResponseGithubComAlchemillahqSylveInternalServicesAuthPasskeyCredentialInfo
  - `data` GithubComAlchemillahqSylveInternalServicesAuthPasskeyCredentialInfo
    - `createdAt` string
    - `credentialId` string
    - `id` integer
    - `label` string
    - `updatedAt` string
    - `userId` integer
  - `error` string
  - `message` string
  - `status` string

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `409` — Conflict
- `413` — Request Entity Too Large
- `500` — Internal Server Error
- `503` — Service Unavailable

---

[API](https://skmtc.net/alchemillahq/apis/sylve-api.md) · [All operations](https://skmtc.net/alchemillahq/apis/sylve-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/alchemillahq/sylve-api/revisions/7a7bea85004e/schema)