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WEBHOOK
card.frozen
{
  "event": "card.frozen",
  "version": "3.0",
  "eventId": "00a733b1-0536-40f2-b271-b128f83077e7",
  "sign": "4dc7d46c2fb499974b8ecd25aee6257cd75d988d183fba95d09a00a74e5c2b42",
  "data": {
    "cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
    "cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
    "cardName": "JOHN DOE",
    "last4": "9720",
    "appId": "A1B2C3D4E5F6G7H8",
    "timestamp": "2026-05-09T23:57:58Z"
  }
}

{}

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{
  "event": "card.frozen",
  "version": "3.0",
  "eventId": "00a733b1-0536-40f2-b271-b128f83077e7",
  "sign": "4dc7d46c2fb499974b8ecd25aee6257cd75d988d183fba95d09a00a74e5c2b42",
  "data": {
    "cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
    "cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
    "cardName": "JOHN DOE",
    "last4": "9720",
    "appId": "A1B2C3D4E5F6G7H8",
    "timestamp": "2026-05-09T23:57:58Z"
  }
}

{}

Body

application/json
​
event
string

The event type identifier (e.g. card.funded).

​
version
string

Webhook payload version.

​
sign
string

HMAC-SHA256 signature of the data object using your webhook secret. Always verify this before processing.

​
data
object

Response

200

Acknowledge receipt of the event