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Checkout changelog

May 14, 2026

API Release v1.9.0

New

New features for Checkout API
Feature name Description
API specification

API specification version 1.9.0 was released.

The following fields were added or updated in the API specification v1.9.0:

New fields added or updated in the API specification
Field name Description Endpoint
paymentMethod.paymentMethodType Updated in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.issuerAssignedAuthenticationFraudScore Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDSAuthenticationAmount Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDSAuthenticationTimestamp Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDSChallengeType Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDSDirectoryServerTransactionId Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDSVersion Added in the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDomainSecureAuthenticationMethodCode Added in the response. GET /notifications - List all notifications for a given time period
paymentMethodOptions.klarnaOptions Added in the request. POST /intent - Set up checkout intent
POST /payment-links - Create a shareable payment link
klarnaOptions.interoperabilityToken Added in the request. POST /intent - Set up checkout intent
POST /payment-links - Create a shareable payment link
paymentMethodOptions.klarnaOptions Added in the response.

GET /payment-links - Returns the list of already created links

GET /payment-links/{linkId} - Retrieves a payment link

PATCH /payment-links/{linkId} - Updates a payment link

POST /payment-links - Create a sharable payment link
klarnaOptions.interoperabilityToken Added in the response.

GET /payment-links - Returns the list of already created links

GET /payment-links/{linkId} - Retrieves a payment link

PATCH /payment-links/{linkId} - Updates a payment link

POST /payment-links - Create a sharable payment link
merchantFraudRiskAssessment.requestorEstimatedTransactionFraudRiskScore Added in the request. POST /intent - Set up checkout intent
purchaseInfo.purchasedItemCount Added in the request. POST /intent - Set up checkout intent
requestorAuthenticationInfo.authenticationUseCase Added in the request. POST /intent - Set up checkout intent
checkoutOptions.paymentCardAuthenticationRequest Added in the request. POST /payment-links - Create a sharable payment link

April 3rd, 2026

API Release v1.8.2

New

New features for Checkout API
Feature name Description
J.P. Morgan-managed SCA exemption

Added changes for J.P. Morgan-managed exemption to intent and notification endpoints.
API specification

API specification version 1.8.2 was released.

The following fields were added or updated in the API specification v1.8.2:

New fields added to the API specification
Field name Description Endpoint
paymentCardAuthenticationRequest.authenticationType

Added to the request.

 POST /intent - Set up checkout intent
threeDomainSecureTransaction.authenticationType Added to the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.threeDomainSecureExemption Added to the response. GET /notifications - List all notifications for a given time period
threeDomainSecureTransaction.authentication Added to the response. GET /notifications - List all notifications for a given time period
Updated a field name to address name drift and is not a breaking change.
messageInfos.messageIdentifier → messageInfos.messageId		 Updated in the request. POST /notifications/ack - Acknowledge notifications

Updated a field name to address name drift and is not a breaking change.

ackFailedMessages.messageIdentifier → ackFailedMessages.messageId

 Updated in the response.

POST /notifications/ack - Acknowledge notifications

Updated a field name to address name drift and is not a breaking change.

messageInfo.messageIdentifier → messageInfo.messageId

 Updated in the response.

GET /notifications - List all notifications for a given time period

Updated a field name to address name drift and is not a breaking change.

tokenNotification.tokenNumber → tokenNotification.token

 Updated in the response. GET /notifications - List all notifications for a given time period

Updated a field name to address name drift and is not a breaking change.

tokenNotification.tokenCategoryCode → tokenNotification.tokenType

 Updated in the response. GET /notifications - List all notifications for a given time period

February 12, 2026

API Release v1.8.0

New

New features for Checkout API
Feature name Description
Tokenization of payment data

Added support for payment instrument tokenization, replacing sensitive payment data with secure tokens. Enabled use of network tokens for transactions and safetech tokens for Primary Account Number (PAN) and bank account information.
API specification

API specification version 1.8.0 was released.

The following fields were added in the API specification v1.8.0:

New fields added to the API specification
Field name Description Endpoint
paymentMethod.[applePay, googlePay, paze].electronicCommerceIndicator

Added to the response.

 GET /notifications - List all notifications for a given time period
paymentMethod.[applePay, googlePay, paze].tokenAuthenticationValue

Added to the response.

 GET /notifications - List all notifications for a given time period

March 5, 2025

API Release v1.7.0

New

New features for Checkout API
Feature name Description
Consumer profile management

Checkout enables you to create, store, update, and maintain consumer profiles, as well as payment card information with J.P. Morgan.
Fraud prevention

New section for fraud setup options was added.

December 19, 2024

API Release v1.7.0

New

New features for Checkout API
Feature name Description
Segments

Checkout offers the capability to configure multiple checkout instances for a merchant using Checkout Segments. Segments is a flexible, low-code feature that supports multiple fully customizable use cases.
Fraud prevention

New fraud status types were added:

  • Approved - FRAUD_CHECK_STATUS_APPROVED
  • Declined - FRAUD_CHECK_STATUS_DECLINED
  • Unspecified - FRAUD_CHECK_STATUS_UNSPECIFIED
API specification

API specification version 1.7.0 was released.

The following fields were added in the API specification v1.7.0:

New fields added to the API specification
Field name Description Endpoint
segmentId

New header for segments was added.

 POST /intent - Set up checkout intent
messages.orderNotification.fraudCheckStatus

New enum values were added:

  • FRAUD_CHECK_STATUS_UNSPECIFIED
  • FRAUD_CHECK_STATUS_APPROVED
  • FRAUD_CHECK_STATUS_DECLINED
 GET /notifications - List all notifications for a given time period

October 18, 2024

API Release v1.6.1

New

New features for Checkout API
Feature name Description
Level 2 and Level 3 data support

Send level 2 and level 3 data to qualify for the lower interchange fees when your consumer uses a commercial, corporate, purchasing, or government card.
Soft merchant descriptors Soft merchant data fields allows you to provide additional merchant specific information for the consumer’s statement, which allows your consumers to identify their transactions and get information about the business that processed the charge.
Payment methods

Added new supported payment methods:

  • iDeal
  • Trustly
  • PayPal
  • AliPay
  • WeChat Pay
API specification

API specification version 1.6.1 was released.

The following fields were added in the API specification v1.6.1:

New fields added to the API specification
Field name Description Endpoint
checkoutOptions.authorization.paymentMethodOptions.acceptedPaymentMethodTypes                                                     

Added the following new valid values (enum):

  • PAYMENT_METHOD_TYPE_CODE_CARD
  • PAYMENT_METHOD_TYPE_CODE_ELECTRONIC_CHECK
  • PAYMENT_METHOD_TYPE_CODE_APPLE_PAY
  • PAYMENT_METHOD_TYPE_CODE_SEPA
  • PAYMENT_METHOD_TYPE_CODE_GOOGLE_PAY
  • PAYMENT_METHOD_TYPE_CODE_PAZE
  • PAYMENT_METHOD_TYPE_CODE_WECHAT_PAY
  • PAYMENT_METHOD_TYPE_CODE_IDEAL
  • PAYMENT_METHOD_TYPE_CODE_PAY_PAL
  • PAYMENT_METHOD_TYPE_CODE_ALI_PAY
  • PAYMENT_METHOD_TYPE_CODE_TRUSTLY
 POST /intent - Set up checkout intent
checkoutOptions.authorizations.authorizationType Added a new valid value for tokenization (enum): AUTH_METHOD_TOKENIZE_ONLY POST /intent - Set up checkout intent
checkoutOptions.authorizations.softMerchant Added to the request POST /intent - Set up checkout intent
purchaseOrderNumber
cart.taxAmount
cart.totalFeeAmount
cart.totalShippingAmount
cart.shippingAddress
cart.transactionDiscountAmount
cart.taxes
cart.totalTransactionAmount
cart.cartMetadata
cart.paymentNotes
cart.lineItems.taxInclusiveLineItemTotalAmount
cart.lineItems.transactionDiscountAmount
cart.lineItems.discounts
cart.lineItems.totalFeeAmount
cart.lineItems.transactionCharges
cart.lineItems.product
cart.lineItems.totalShippingAmount
cart.lineItems.shippingMethod
cart.lineItems.totalTaxAmount
cart.lineItems.taxeslineItemMetadata

August 21, 2024

API Release v1.5.4

Change

Feature changes for Checkout API
Feature name Description
Drop-In UI
  • Added the ability to mount and unmount the drop-in UI instance.
  • Added the Level - Command to the Event bus.
  • Added the following Message types to the Event bus:
    • PaymentValidationFailed
    • ExternalSubmitTriggered
    • UpdateIntentFailed

July 22, 2024

API Release v1.5.4

New

New features for Checkout API
Feature name Description
Fraud prevention

Safetech fraud tools help you retain legitimate purchases while preventing fraudulent transactions by determining whether an accountholder is a fraud risk. Checkout comes bundled with Safetch fraud screening .
PAZE PAZE is now supported as a method of payment.
API specification

API specification version 1.5.4 was released.

The following fields were added in the API specification v1.5.4:

New fields added to the API specification
Field name Description Endpoint
checkoutOptions.fraudCheckOptions.ignoreDeviceData Added to the request POST /intent - Set up checkout intent
checkoutOptions.fraudCheckOptions.consumerCreateTimestamp

Change

Feature changes for Checkout API
Feature name Description
Pay by Link

Added the option to perform an Action on the Pay by Link dashboard.