Get Default Card
GET
/v1/customers/{id}/cards/defaultOptionalReturn the customer's default saved card. 404 when the customer has no default card.
Authentication
Signature Pattern
HMAC-SHA256(secretKey, "{timestamp}\nGET\n/v1/customers/{id}/cards/default\n{sha256(\"\")}")| Header | Value | Description |
|---|---|---|
X-Api-Key | pk_live_a1b2c3d4e5f6g7h8 | Merchant public API key |
X-Signature | {hmac_sha256_hex} | Hex HMAC-SHA256 request signature |
X-Timestamp | 2026-04-13T10:00:00Z | ISO 8601 UTC request time (±5 min) |
Response Parameters
| Field | Type | Example |
|---|---|---|
cardToken | string | "tok_9f8e7d6c5b4a" |
customerId | string | "cus_a1b2c3d4e5f6" |
last4 | string | "4321" |
brand | string | "visa" |
expMonth | integer | 12 |
expYear | integer | 2028 |
Response Example
JSONResponse
{
"cardToken": "tok_9f8e7d6c5b4a",
"customerId": "cus_a1b2c3d4e5f6",
"last4": "4321",
"brand": "visa",
"expMonth": 12,
"expYear": 2028
}Status Codes
200Success
201Created
400Bad Request
401Unauthorized
404Not Found
429Rate Limited
Try itMock
GEThttps://api.pay.sandbox.kvell.group