Skip to main content
WEBHOOK

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

webhook-id
string
required

Unique message ID. Use to deduplicate deliveries.

webhook-timestamp
string
required

Unix timestamp of when the message was sent.

webhook-signature
string
required

HMAC signature for verifying the request. Verify using your endpoint signing secret from the Loops dashboard.

Body

application/json
eventName
string
required
Allowed value: "contact.created"
eventTime
integer
required

Unix timestamp in seconds.

webhookSchemaVersion
string
required
Allowed value: "1.0.0"
contactIdentity
object
required
contact
object
required

Full contact object, including custom properties.

Response

200

Webhook received successfully. Return any 2xx status code to acknowledge delivery.

Last modified on July 30, 2026