- Created by user-faaa9, last modified by Peter Posse on 31. Mar 2026
Please note that the data within all JSON objects is encoded using UTF-8 and then must be also Base64 encoded. This applies in particular to special characters such as "Umlaute" and diactrics.
Data Elements
securityCode string O Card security value expiryDate string M Card expiry in format YYYYMM startDate string C Card start in format YYYYMM (only applicable to some UK debit cards) cardholderName string M Name of the cardholder as printed on the card. Notice: Alphanumeric special characters, listed in EMV Book 4, “Appendix B”. Special characters have been added with EMV 3DS Version 2.3, but not all participants (banks) already support that standard. issueNumber string C Issue number of the card (only applicable to some UK debit cards) number string M Card number or card token brand string M Card networkKey Format CND Description 1 2 3 4 5 6 7
Schema
BASEURL= https://www.computop-paygate.com/schemas
{
"$schema": "http://json-schema.org/draft-07/schema#",
"$id": "BASEURL/card.json",
"title": "card",
"description": "Card Information",
"type": "object",
"properties": {
"securityCode": {
"type": "string",
"minLength": 3,
"maxLength": 4
},
"expiryDate": {
"type": "string",
"description": "YYYYMM",
"minLength": 6,
"maxLength": 6
},
"startDate": {
"type": "string",
"description": "YYYYMM (only applicable to some UK debit cards)",
"minLength": 6,
"maxLength": 6
},
"cardholderName": {
"type": "string",
"maxLength" : 45,
"minLength" : 2,
"description" : "The name of the cardholder as printed on the card. Alphanumeric special characters, listed in EMV Book 4, “Appendix B”."
},
"issueNumber" : {
"type" : "string",
"maxLength" : 2,
"minLength" : 1,
"description" : "only applicable to some UK debit cards"
},
"number": {
"type" : "string",
"maxLength" : 19,
"minLength" : 12
},
"brand": {
"type": "string",
"enum": [
"MasterCard",
"VISA",
"AMEX",
"Diners",
"CBN",
"JCB",
"Dankort",
"Maestro",
"Cartes Bancaires",
"Discover",
"Bancontact",
"Hipercard",
"Elo",
"Aura",
"Carte 4Etoiles",
"AirPlus",
"CUP",
"NARANJA",
"SHOPPING",
"CABAL",
"ARGENCARD",
"CENCOSUD",
"KOOKMIN",
"KEB",
"BC",
"SHINHAN",
"SAMSUNG",
"HYUNDAI",
"LOTTE",
"1euro",
"echequevacances",
"cofidis3xcb",
"facilypay-3x",
"facilypay-3xsansfrais",
"facilypay-4x",
"facilypay-4xsansfrais",
"RuPay"
]
}
},
"required": ["expiryDate", "number", "brand"],
"additionalProperties": false
}
Sample
{
"securityCode": "569",
"expiryDate": "202208",
"cardholderName": "William Thomas",
"number": "4186665161011901",
"brand": "VISA"
}