Authentication API reference - webauthn authenticate

Authenticate WebAuthn

POSThttps://test.stytch.com/v1/webauthn/authenticate

Complete the authentication of a Passkey or WebAuthn registration by passing the response from the navigator.credentials.get() request to the authenticate endpoint.

If the webauthn-json library's get() method was used, the response can be passed directly to the authenticate endpoint. If not some fields from the navigator.credentials.get() response will need to be converted from array buffers to strings and marshalled into JSON.

Body parameters

public_key_credential* json

session_custom_claims map<string, any>

session_duration_minutes int

session_jwt string

session_token string

Response fields

status_code int

request_id string

session object

session_jwt string

session_token string

user object

user_id string

webauthn_registration_id string

curl --request POST \
  --url https://test.stytch.com/v1/webauthn/authenticate \
  -u 'PROJECT_ID:SECRET' \
  -H 'Content-Type: application/json' \
  -d '{
    "public_key_credential": "{\"type\":\"public-key\",\"id\":\"Ab6y28pCs5bVRIzSmrlufidfR57gRlEZ-KSTVGJYdkwAfR_SeaVXvdW6ND_XljM25cXYI-dSwrhjuNsj1L3uC0BHqN3mBQIzSswJneTv08RbDNZOLhjiwOEnQ03uPbL5eA7EcyinClOU_qwPMf5lowW1NSTWtaFvOlY\",\"rawId\":\"Ab6y28pCs5bVRIzSmrlufidfR57gRlEZ-KSTVGJYdkwAfR_SeaVXvdW6ND_XljM25cXYI-dSwrhjuNsj1L3uC0BHqN3mBQIzSswJneTv08RbDNZOLhjiwOEnQ03uPbL5eA7EcyinClOU_qwPMf5lowW1NSTWtaFvOlY\",\"response\":{\"authenticatorData\":\"SZYN5YgOjGh7NBcPZHZgW1_krrmihjLHmVzzuoNcl2MFYZKokg\",\"clientDataJSON\":\"eyJ2eXBlOjopo2ViYBx0aG4uZ2V0IiwiY2hhbGxlbmdlIjoiWEtEWDVJa25EWEU3by1KQlRkYTNfS1NiTXdmb3dMWDQxMldlNEFDY04tYWgiLCJvcmlnaW4iOiJodHRwOi8vbG9jYWxob3N0OjMwMDAiLCJjcm9zc09yaWdpbiI6ZmFsc2V9\",\"signature\":\"MEYCIQDU1FGXEBrq3hsQ2ye1pBcYLMu7zmzLVVdcbs6R21hGyAIhAJmpdBo2Hd7P4Ks9VFKBUYbKSIioMdhl2XIIjWHNKD77\",\"userHandle\":\"dXNlus1kZXZlbG9wLBC2M2E1MGI0LWEwMGEtNGU3NC89NTJmLTFlOGRhODE2nDBnMw\"},\"clientExtensionResults\":{}}"
  }'

RESPONSE

{
  "status_code": 200,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "session": null
  "session_jwt": "",
  "session_token": "",
  "user": {...},
  "user_id": "user-test-16d9ba61-97a1-4ba4-9720-b03761dc50c6",
  "webauthn_registration_id": "webauthn-registration-test-5c44cc6a-8af7-48d6-8da7-ea821342f5a6",
}

Common Error Types

invalid_public_key_credential