{
"account_id": "9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d",
"card_id": "3c2b1a09-8d7e-6f5a-4b3c-2d1e0f9a8b7c",
"transaction_id": "5e4d3c2b-1a09-8f7e-6d5c-4b3a2c1d0e9f",
"status": "authorized",
"amount_usdt": "16.170000",
"merchant": "AMZN Mktp"
}Card transaction
Fires on every card transaction lifecycle change: authorized (real-time hold), reversed (funds returned) and settled adjustments. Same signature headers as every delivery.
WEBHOOK
card_transaction
{
"account_id": "9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d",
"card_id": "3c2b1a09-8d7e-6f5a-4b3c-2d1e0f9a8b7c",
"transaction_id": "5e4d3c2b-1a09-8f7e-6d5c-4b3a2c1d0e9f",
"status": "authorized",
"amount_usdt": "16.170000",
"merchant": "AMZN Mktp"
}Authorizations
Session JWT (from register/login) or API key (pk_...).
X-API-Key: <token> is accepted as an alternative header.
Response
200
Return any 2xx to acknowledge.