Fraud

Overview

This page contains all API documentation for Gift Card transactions. For more information regarding account access, navigate to the Transaction API parent page.

How to Generate Cardknox Keys

Sign in to the Cardknox Merchant Portal.
Select "Account Settings" from the navigation bar.
Select "Keys" from the sub-menu.
Click "Create a Key" in the top-right corner.
Choose the desired key type (API or iFields), description (software, etc.), and permissions.
Click "Create and View" and copy your key.

It is critical to copy your key and save it in a secure location, as you won’t be able to obtain the key again.

iFields and Transaction API

We recommend using iFields in conjunction with the Transaction API for added security. Cardknox iFields is an iFrames solution that keeps sensitive card data away from merchant servers while granting you complete control over form layout and design. Click here to learn more about iFields.

The Cardknox iFields solution utilizes iFrames in which the user enters their credit card and/or ACH information and then uses JavaScript to generate SUTs (single-use tokens) for processing. These features allow the website to remain secure and out-of-scope for PCI compliance while allowing the developer to customize the page layout and design fully.

Endpoints

Health Check

HTTP Request Method: GET

https://x1.cardknox.com/status

Transactions

HTTP Request Method: POST

Cardknox allows you to send the data in FormData, JSON, and XML formats.

Add to the base URL any of the following formats to indicate which format you are sending it as:

FormData

/gatewayform

https://x1.cardknox.com/gatewayform

JSON

/gatewayjson

https://x1.cardknox.com/gatewayjson

XML

/gatewayxml

https://x1.cardknox.com/gatewayxml

Transactions

Fraud Submit

POST fraud:submit

xCommand = fraud:submit

The Submit command is used in conjunction with a valid FraudWatch account to submit e-commerce transactions for a fraud verification check.

Request Body

Name	Type	Description
xCardNum*	String	Masked Card number with BIN and last 4 digits exposed
xKey*	String	Your Cardknox API key.
xVersion*	String	Gateway API version. The current version is 5.0.0.
xSoftwareName*	String	Name of your software
xSoftwareVersion*	String	Version number of your software
xCommand*	String	Cardknox transaction type
xAmount*	String	The total amount of the transaction, inclusive of tax and tip if applicable. This the total amount of the transaction
xCustom01	String	20 custom fields are available for custom data such as customer comments, etc. Use xCustom01 through xCustom20
xInvoice*	String	The merchant’s invoice number for the transaction. xInvoice is recommended when available for improved duplicate handling
xIP*	String	The customer’s IP address. Typically used for fraud detection
xEmail*	String	The customer’s email address
xBillFirstName*	String	The customer’s first name for their billing profile
xBillLastName*	String	The customer’s last name for their billing profile
xBillStreet*	String	The customer’s street address for their billing profile
xBillCity*	String	The customer’s city for their billing profile
xBillState*	String	The customer’s state for their billing profile
xBillZip*	String	The customer’s zip code for their billing profile
xBillPhone*	String	The customer’s phone number for their billing profile
xShipFirstName*	String	The customer’s first name for their shipping profile
xShipLastName*	String	The customer’s last/family name for their shipping profile
xShipStreet*	String	The customer’s street address for their shipping profile
xShipCity*	String	The customer’s city for their shipping profile
xShipState*	String	The customer’s state for their shipping profile
xShipZip*	String	The customer’s zip code for their shipping profile
xShipPhone*	String	The customer’s phone number for their shipping profile
xOrderID	String	Unique order number for FraudWatch verification
xExistingCustomer	String	Yes/No value indicating if customer is a repeat customer
xAllowDuplicate	String	By default, Cardknox rejects duplicate transactions within 10 minutes of the original transaction. This command overrides that safeguard. True/False allowed.
xGatewayRefNum*	String	Transaction RefNum received from gateway for FraudWatch verification
xGatewayResult*	String	Transaction status received from gateway for FraudWatch verification (Approved/Declined/Error)
xGatewayCVV*	String	CVV for FraudWatch verification
xGatewayAVS*	String	Street address for FraudWatch verification
xOrderType*	String	Specifies if the order origin is internet OR phone for FraudWatch verification
xExistingCustomer*	String	Yes/No value indicating if the customer is a repeat customer
xShipEmail*	String	The ShipTo email address
xName	String	The cardholder’s name
xTax	String	The tax portion that is included in the total transaction amount (xAmount)
xTip	String	The tip portion that is included in the total transaction amount (xAmount)
xPONum	String	The merchant’s purchase order number for the transaction
xDescription	String	Additional data that is optionally passed along for reporting
xShipMiddleName	String	The customer’s middle name for their shipping profile
xBillMiddleName	String	The customer’s middle name for their billing profile
xBillStreet2	String	The customer’s second line street address for their billing profile
xShipStreet2	String	The customer’s second line street address for their shipping profile
xShipCountry	String	The customer's country code for their shipping profile
xBillCountry	String	The custom's country code for their billing profile
xBillMobile	String	The customer’s mobile phone number for their billing profile
xGatewayError	String	Transaction RefNum received from gateway for FraudWatch verification
xComments	String	Additional data that is optionally passed along to the receipt
xFax	String	The customer’s fax number.
xOrderItems	String	Summary of products ordered
xCustomerComments	String	Comments submitted by customer along with order
xShipMethod	String	The shipping carrier/service used
xShipAmount	String	The total cost of shipping charges
xSupports64BitRefnum	String	True/False value indicating that the user’s system can handle a 64bit refnum getting returned on request to the transaction.

Name

Type

Description

xCardNum*

String

Masked Card number with BIN and last 4 digits exposed

xKey*

String

Your Cardknox API key.

xVersion*

String

Gateway API version. The current version is 5.0.0.

xSoftwareName*

String

Name of your software

xSoftwareVersion*

String

Version number of your software

xCommand*

String

Cardknox transaction type

xAmount*

String

The total amount of the transaction, inclusive of tax and tip if applicable. This the total amount of the transaction

xCustom01

String

20 custom fields are available for custom data such as customer comments, etc. Use xCustom01 through xCustom20

xInvoice*

String

The merchant’s invoice number for the transaction. xInvoice is recommended when available for improved duplicate handling

xIP*

String

The customer’s IP address. Typically used for fraud detection

xEmail*

String

The customer’s email address

xBillFirstName*

String

The customer’s first name for their billing profile

xBillLastName*

String

The customer’s last name for their billing profile

xBillStreet*

String

The customer’s street address for their billing profile

xBillCity*

String

The customer’s city for their billing profile

xBillState*

String

The customer’s state for their billing profile

xBillZip*

String

The customer’s zip code for their billing profile

xBillPhone*

String

The customer’s phone number for their billing profile

xShipFirstName*

String

The customer’s first name for their shipping profile

xShipLastName*

String

The customer’s last/family name for their shipping profile

xShipStreet*

String

The customer’s street address for their shipping profile

xShipCity*

String

The customer’s city for their shipping profile

xShipState*

String

The customer’s state for their shipping profile

xShipZip*

String

The customer’s zip code for their shipping profile

xShipPhone*

String

The customer’s phone number for their shipping profile

xOrderID

String

Unique order number for FraudWatch verification

xExistingCustomer

String

Yes/No value indicating if customer is a repeat customer

xAllowDuplicate

String

By default, Cardknox rejects duplicate transactions within 10 minutes of the original transaction. This command overrides that safeguard. True/False allowed.

xGatewayRefNum*

String

Transaction RefNum received from gateway for FraudWatch verification

xGatewayResult*

String

Transaction status received from gateway for FraudWatch verification (Approved/Declined/Error)

xGatewayCVV*

String

CVV for FraudWatch verification

xGatewayAVS*

String

Street address for FraudWatch verification

xOrderType*

String

Specifies if the order origin is internet OR phone for FraudWatch verification

xExistingCustomer*

String

Yes/No value indicating if the customer is a repeat customer

xShipEmail*

String

The ShipTo email address

xName

String

The cardholder’s name

xTax

String

The tax portion that is included in the total transaction amount (xAmount)

xTip

String

The tip portion that is included in the total transaction amount (xAmount)

xPONum

String

The merchant’s purchase order number for the transaction

xDescription

String

Additional data that is optionally passed along for reporting

xShipMiddleName

String

The customer’s middle name for their shipping profile

xBillMiddleName

String

The customer’s middle name for their billing profile

xBillStreet2

String

The customer’s second line street address for their billing profile

xShipStreet2

String

The customer’s second line street address for their shipping profile

xShipCountry

String

The customer's country code for their shipping profile

xBillCountry

String

The custom's country code for their billing profile

xBillMobile

String

The customer’s mobile phone number for their billing profile

xGatewayError

String

Transaction RefNum received from gateway for FraudWatch verification

xComments

String

Additional data that is optionally passed along to the receipt

xFax

String

The customer’s fax number.

xOrderItems

String

Summary of products ordered

xCustomerComments

String

Comments submitted by customer along with order

xShipMethod

String

The shipping carrier/service used

xShipAmount

String

The total cost of shipping charges

xSupports64BitRefnum

String

True/False value indicating that the user’s system can handle a 64bit refnum getting returned on request to the transaction.

Fraud Submit - Request Payload Example

{ 
    "xCardNum": "4444333322221111", 
    "xKey": "[xkeycredentials]", 
    "xVersion": "4.5.9", 
    "xSoftwareName": "YourSoftwareName", 
    "xSoftwareVersion": "1.0.0", 
    "xCommand": "fraud:submit", 
    "xToken": "61h72mmh68phn9q233634ph3g54p1499m69qhp4816pn528h84", 
    "xCustom01": "Register01", 
    "xExp": "12/25", 
    "xCVV": "945", 
    "xStreet": "123 Any Street Apt 4b Anytown, NY", 
    "xZip": "12345", 
    "xMagstripe": "%B4444333322221111^TEST CARD/VISA^4912101123456789?;4444333322221111=4912101123456789?", 
    "xName": "John Doe", 
    "xAuthCode": "T4321A", 
    "xDUKPT": "%B4444333322221111^TEST CARD/VISA^4912101123456789?;444433", 
    "xTax": "2.00", 
    "xTip": "2.00", 
    "xRefNum": "81234568", 
    "xInvoice": "123456A", 
    "xPONum": "123456B", 
    "xComments": "This is a comment", 
    "xDescription": "This is a description", 
    "xIP": "1.2.3.4", 
    "xEmail": "text@example.com", 
    "xFax": "1234567890", 
    "xBillFirstName": "John", 
    "xBillMiddleName": "Max", 
    "xBillLastName": "Doe", 
    "xBillCompany": "Acme", 
    "xBillStreet": "123 Any Street", 
    "xBillStreet2": "Apt 4b", 
    "xBillCity": "Anytown", 
    "xBillState": "NY", 
    "xBillZip": "12345", 
    "xBillCountry": "USA", 
    "xBillPhone": "8005551212", 
    "xBillMobile": "8005551111", 
    "xShipFirstName": "John", 
    "xShipMiddleName": "Max", 
    "xShipLastName": "Doe", 
    "xShipCompany": "Acme", 
    "xShipStreet": "123 Any Street", 
    "xShipStreet2": "Apt 4b", 
    "xShipCity": "Anytown", 
    "xShipState": "NY", 
    "xShipZip": "12345", 
    "xShipCountry": "USA", 
    "xShipPhone": "8005551212", 
    "xShipMobile": "8005551111", 
    "xMICR": "t021000021t 123456789o _2542", 
    "xRouting": "021202337", 
    "xGatewayRefNum": "852585258", 
    "xGatewayResult": "Approved", 
    "xGatewayError": "845455484", 
    "xGatewayCVV": "M", 
    "xGatewayAVS": "YYY", 
    "xOrderType": "Internet", 
    "xOrderID": "12356", 
    "xExistingCustomer": "TRUE", 
    "xOrderItems": "Sony Digital Camera", 
    "xCustomerComments": "Please ship as soon as possible", 
    "xShipMethod": "UPS Ground", 
    "xShipAmount": "29.99", 
    "xShipEmail": "text@example.com", 
    "xAllowDuplicate": "TRUE" 
}

Last updated 2 months ago