User Passkey Registered

The user.passkey.registered event is triggered when a user successfully registers a passkey credential. Idempotent re-registration of an already-stored credential does not re-fire the event.

Event payload

Emitted on a successful passkey registration ceremony. Idempotent re-registration of an already-stored credential does not re-fire.

user_id

string

required

An app's user's unique identifier. It is prefixed with 'usr_'

Examples:

"usr_01jqebhswje1ka1z7ahr9rfsgt"

"usr_01jqy7455pf8p9bap5qke912g1"

session_id

string

required

A user's session unique identifier. It is prefixed with 'ses_'

Example:

"ses_01jr0z5w2seq998trz7ftbb9rj"

credential

object

required

Snapshot of the passkey credential the event relates to. Public key, sign count and AAGUID are intentionally omitted — they are internal to the authentication flow and never useful downstream.

Show child attributes

registered_at

string<date-time>

required

Example:

"2025-03-15T10:30:00Z"

correlation_id

string

Example:

"corr_01jqy7455pf8p9bap5qke912g1"

User Passkey Deleted

{
  "user_id": "<string>",
  "session_id": "<string>",
  "credential": {
    "credential_id": "<string>",
    "backup_state": true,
    "nickname": "<string>",
    "transports": [
      "<string>"
    ]
  },
  "registered_at": "2023-11-07T05:31:56Z",
  "correlation_id": "<string>"
}

​Event payload

Event payload