Test webhook for integration verification

Webhook that is sent once to verify your webhook endpoint is correctly set up. This is sent when you configure or update your platform settings with a webhook URL.

Authentication

The webhook includes a signature in the X-Grid-Signature header that allows you to verify that the webhook was sent by the Grid API. To verify the signature:

1. Get the Grid public key provided to you during integration
2. Decode the base64 signature from the header
3. Create a SHA-256 hash of the request body
4. Verify the signature using the public key and the hash

If the signature verification succeeds, the webhook is authentic. If not, it should be rejected.

This webhook is purely for testing your endpoint integration and signature verification.

WEBHOOK test-webhook

testWebhook

{
  "id": "Webhook:019542f5-b3e7-1d02-0000-000000000001",
  "type": "TEST",
  "timestamp": "2025-08-15T14:32:00Z",
  "data": {}
}

400

{
  "status": 400,
  "code": "INVALID_INPUT",
  "message": "<string>",
  "details": {}
}

Authorizations

X-Grid-Signature · string · header · required

Secp256r1 (P-256) asymmetric signature of the webhook payload, which can be used to verify that the webhook was sent by Grid. To verify the signature:

1. Get the Grid public key provided to you during integration
2. Decode the base64 signature from the header
3. Create a SHA-256 hash of the request body
4. Verify the signature using the public key and the hash

If the signature verification succeeds, the webhook is authentic. If not, it should be rejected.

Body

application/json

id · string · required

Unique identifier for this webhook delivery (can be used for idempotency)

Example:

"Webhook:019542f5-b3e7-1d02-0000-000000000007"

type · enum<string> · required

Status-specific event type in OBJECT.EVENT dot-notation (e.g., OUTGOING_PAYMENT.COMPLETED)

Available options: TEST

timestamp · string<date-time> · required

ISO 8601 timestamp of when the webhook was sent

Example:

"2025-08-15T14:32:00Z"

data · object · required

The resource object. Contains the full resource as the corresponding GET endpoint would return it.

Response

200

Webhook received successfully. This confirms your webhook endpoint is properly configured.