{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "c9d0e1f2-a3b4-5678-2345-6789abcdef01",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "PENDING",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:32:00Z"
}
}
{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "d1e2f3a4-b5c6-7890-3456-789abcdef012",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "APPROVED",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:35:00Z"
}
}
{}
Cards
Card Transaction Approved
Sent when a card charge is approved at the point of sale or online. Fee charges (cross-border, decline fees) are delivered as their own dedicated events.
WEBHOOK
card.transaction.approved
{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "c9d0e1f2-a3b4-5678-2345-6789abcdef01",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "PENDING",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:32:00Z"
}
}
{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "d1e2f3a4-b5c6-7890-3456-789abcdef012",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "APPROVED",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:35:00Z"
}
}
{}
{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "c9d0e1f2-a3b4-5678-2345-6789abcdef01",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "PENDING",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:32:00Z"
}
}
{
"event": "card.transaction.approved",
"version": "3.0",
"eventId": "d1e2f3a4-b5c6-7890-3456-789abcdef012",
"sign": "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
"data": {
"cardId": "a4e8f2b6c9d1e3f7a2b5c8d0e4f1a3b6c9d2e5f8a1b4c7d0e3",
"cardholderId": "8f4e2a1b3c5d7e9f0a2b4c6d8e0f1a3b5c7d",
"reference": "hos_tx_a4e8f2b6_20260510143200",
"type": "DEBIT",
"amount": 49.99,
"currency": "USD",
"merchant": {
"name": "AMAZON MARKETPLACE",
"country": "US",
"mcc": "5999"
},
"category": "Card Charge",
"network": "VISA",
"authorizationCode": "AUTH123",
"status": "APPROVED",
"appId": "A1B2C3D4E5F6G7H8",
"timestamp": "2026-05-10T14:35:00Z"
}
}
{}
Event Flow
Card charge events follow a two-phase pattern:- PENDING — sent immediately when the authorization is captured (before settlement).
statusis"PENDING". - APPROVED — sent again when the charge settles.
statusis"APPROVED".
status: "REVERSED" (see card.transaction.reversed for a standalone reversal).
Fee charges are delivered as their own dedicated events — card.transaction.cross_border_fee, card.transaction.decline_fee_domestic, and card.transaction.decline_fee_international — not through card.transaction.approved.
Payload Fields
| Field | Type | Description |
|---|---|---|
cardId | string | Your card identifier |
cardholderId | string | Cardholder identifier |
reference | string | null | Unique transaction reference |
type | string | Always "DEBIT" |
amount | number | Transaction amount |
currency | string | Currency code (e.g., "USD") |
merchant.name | string | Merchant name |
merchant.country | string | null | Merchant country code |
merchant.mcc | string | null | Merchant category code |
category | string | Always "Card Charge" |
network | string | null | Card network (e.g., "VISA", "MASTERCARD") |
authorizationCode | string | null | Authorization code from the network |
status | string | "PENDING", "APPROVED", or "REVERSED" |
Body
application/json
Response
200
Acknowledge receipt of the event

