{
  "subscriptionId": "00000000-0000-4000-8000-000000000001",
  "notificationId": "66666666-6666-4666-8666-666666666666",
  "notificationType": "account.contractExecution",
  "notification": {
    "id": "44444444-4444-4444-8444-444444444444",
    "status": "complete",
    "source": {
      "type": "account",
      "id": "22222222-2222-4222-8222-222222222222"
    },
    "custodyType": "self",
    "blockchain": "ETH",
    "contractAddress": "0x1111111111111111111111111111111111111111",
    "amount": {
      "amount": "0.000000000000000000",
      "currency": "ETH"
    },
    "createDate": "2026-10-28T12:00:00Z",
    "updateDate": "2026-10-28T12:01:00Z",
    "functionSelector": "0x095ea7b3",
    "transactionHash": "0xabababababababababababababababababababababababababababababababab",
    "networkFee": {
      "amount": "0.000021000000000000",
      "currency": "ETH"
    }
  },
  "timestamp": "2026-10-28T12:01:01Z",
  "version": 2
}

Contract execution completed or failed

Non-custodial accounts are available in sandbox only. Production non-custodial accounts are on the roadmap.

Sent when a contract execution reaches complete or failed, including failures before the call reached the blockchain. Webhooks are best effort; GET /v1/accounts/contractExecutions/{id} is the source of truth. The payload doesn’t include callData or abiParameters. A failed execution keeps its transactionHash and networkFee when they’re known.

WEBHOOK

accountContractExecution

{
  "subscriptionId": "00000000-0000-4000-8000-000000000001",
  "notificationId": "66666666-6666-4666-8666-666666666666",
  "notificationType": "account.contractExecution",
  "notification": {
    "id": "44444444-4444-4444-8444-444444444444",
    "status": "complete",
    "source": {
      "type": "account",
      "id": "22222222-2222-4222-8222-222222222222"
    },
    "custodyType": "self",
    "blockchain": "ETH",
    "contractAddress": "0x1111111111111111111111111111111111111111",
    "amount": {
      "amount": "0.000000000000000000",
      "currency": "ETH"
    },
    "createDate": "2026-10-28T12:00:00Z",
    "updateDate": "2026-10-28T12:01:00Z",
    "functionSelector": "0x095ea7b3",
    "transactionHash": "0xabababababababababababababababababababababababababababababababab",
    "networkFee": {
      "amount": "0.000021000000000000",
      "currency": "ETH"
    }
  },
  "timestamp": "2026-10-28T12:01:01Z",
  "version": 2
}

Body

application/json

A webhook payload

notificationType

enum<string>

required

The type of notification.

Available options:

account.contractExecution

notification

object

required

Summary of a contract execution that completed or failed. Doesn't include callData or abiParameters; get them with GET /v1/accounts/contractExecutions/{id}.

Show child attributes

subscriptionId

string<uuid>

ID of the webhook subscription that produced this notification.

notificationId

string<uuid>

Unique ID for this event. Stable across retries of the same delivery, so use it to deduplicate.

timestamp

string<date-time>

When the notification was produced.

version

integer

The version of the notification schema. Always 2.

Response

200

Webhook received successfully.

Accounts

First-party bank operations

First-party crypto operations

Third-party crypto operations

Cross-currency API

Notifications

Security

Contract execution completed or failed

Body

Response