Start adding a passkey

POST /v1/auth/passkeys/registration

Returns the options for navigator.credentials.create(). Send the password unless this session verified a second factor in the last 10 minutes; once the account has two-factor authentication on, the session must also have verified one.

Authorization

bearer

Authorizationheader · stringrequired

Session token from POST /v1/auth/login with "transport": "bearer". Browsers use the session cookie that login sets instead.

Body

application/json

passwordstring

Required unless this session verified a second factor in the last 10 minutes

maxLength: 512

Responses

errors: application/problem+json

200

401

Unauthorized

409

Conflict

422

Unprocessable Entity

500

Internal Server Error

503

Service Unavailable

Match errors on the problem's code, which stays the same, not on its message.

Send a request

Server

Bearer token

Body

The request goes from your browser straight to this server; nothing passes through this site. The API must allow this site's origin for CORS.

Requestexample

curl -X POST "$API_URL/v1/auth/passkeys/registration" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "password": "string"
}'

body := strings.NewReader(`{
  "password": "string"
}`)
req, err := http.NewRequestWithContext(ctx, http.MethodPost,
	apiURL + "/v1/auth/passkeys/registration", body)
if err != nil {
	return err
}
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Content-Type", "application/json")
res, err := http.DefaultClient.Do(req)
if err != nil {
	return err
}
defer res.Body.Close()

const res = await fetch(`${apiUrl}/v1/auth/passkeys/registration`, {
  method: "POST",
  headers: {
    Authorization: `Bearer ${token}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "password": "string"
  }),
});
const data = await res.json();

Responseexample

{
  "ceremony_token": "string",
  "expires_at": "2026-09-15T12:00:00Z",
  "options": null
}

{
  "code": "string",
  "status": 401,
  "title": "Unauthorized",
  "detail": "string",
  "request_id": "req_9f86d081884c7d65",
  "type": "string"
}

{
  "code": "string",
  "status": 409,
  "title": "Conflict",
  "detail": "string",
  "request_id": "req_9f86d081884c7d65",
  "type": "string"
}

{
  "code": "string",
  "status": 422,
  "title": "Unprocessable Entity",
  "detail": "string",
  "errors": [
    {
      "message": "expected length >= 1",
      "location": "body.name"
    }
  ],
  "request_id": "req_9f86d081884c7d65",
  "type": "string"
}