Mastercard Commercial Event Notifications

Receive near real-time payment alerts enabling accurate completion and reconciliation of commercial payments.

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OpenAPI Specification

mastercard-commercial-event-notifications-openapi.yml Raw ↑
openapi: 3.0.3
info:
  title: Mastercard Commercial Event Notifications
  description: >-
    Receive near real-time payment alerts enabling accurate completion and
    reconciliation of commercial payments
  version: 1.2.0
  contact:
    name: API Support
    email: [email protected]
    url: https://developer.mastercard.com/support
servers:
  - url: https://api.mastercard.com/commercial-event-notifications
    description: Production server URL
  - url: https://sandbox.api.mastercard.com/commercial-event-notifications
    description: Sandbox server URL
tags:
  - name: FieldMapping
    description: >-
      FieldMapping Operations - Retrieving field information for notification
      message content
  - name: Subscription
    description: >-
      Subscription Operations - Creating, retrieving, updating and deleting
      subscriptions
  - name: Notifications
    description: Notification Operations - Retrieving collection of generated notifications
paths:
  /fieldmappings:
    get:
      summary: Retrieving fieldmappings
      description: >-
        Retrieve field information for notification message content, which can
        be used to set up subscription filter specifications for those
        notifications.
      tags:
        - Field Mapping
      operationId: getFieldMapping
      responses:
        '200':
          $ref: '#/components/responses/FieldMappingSuccess'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
  /subscriptions:
    post:
      summary: Creating subscriptions
      description: >-
        Create a subscription that will cause notifications to be generated for
        the specified events.
      tags:
        - Subscriptions
      operationId: createSubscription
      requestBody:
        $ref: '#/components/requestBodies/CreateSubscription'
      responses:
        '201':
          $ref: '#/components/responses/CreatedSubscription'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
      callbacks:
        pushNotificationsMessage:
          to registered notification url:
            post:
              requestBody:
                description: Push Notifications message for subscribed events
                content:
                  application/json:
                    schema:
                      type: array
                      items:
                        $ref: '#/components/schemas/notification'
              responses:
                '200':
                  description: >
                    Your server implementation should return this HTTP status
                    code

                    if the data was received successfully
    get:
      summary: Retrieving subscriptions
      description: Retrieve the subscriptions defined for this client.
      tags:
        - Subscriptions
      operationId: getAllSubscriptions
      parameters:
        - $ref: '#/components/parameters/subscriptionsOffsetParam'
        - $ref: '#/components/parameters/subscriptionsLimitParam'
        - $ref: '#/components/parameters/sortParam'
      responses:
        '200':
          $ref: '#/components/responses/GetSubscription'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
  /subscriptions/{id}:
    get:
      summary: Retrieving subscription by id
      description: Retrieve the details of a subscription.
      tags:
        - Subscriptions
        - Subscription
      operationId: getSubscription
      parameters:
        - $ref: '#/components/parameters/subscriptionIdParam'
      responses:
        '200':
          $ref: '#/components/responses/GetSubscriptionsById'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      summary: Updating subscription
      description: Update an existing subscription.
      tags:
        - Subscriptions
        - Subscription
      operationId: updateSubscription
      parameters:
        - $ref: '#/components/parameters/subscriptionIdParam'
      requestBody:
        $ref: '#/components/requestBodies/UpdateSubscription'
      responses:
        '200':
          $ref: '#/components/responses/UpdatedSubscription'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      summary: Deleting subscription
      description: >-
        Deletes a subscription, with the effect that no further notifications
        will be generated for that subscription.
      tags:
        - Subscriptions
        - Subscription
      operationId: deleteSubscription
      parameters:
        - $ref: '#/components/parameters/subscriptionIdParam'
      responses:
        '204':
          description: >-
            No content, indicates that the subscription has been deleted
            successfully
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
  /notifications:
    get:
      summary: Getting notifications
      description: >
        This endpoint represents the collection of notifications that have been
        generated for the client within the retention period for notifications.
        A GET on this endpoint retrieves the notifications in a paginated
        manner.
      tags:
        - Notifications
      operationId: getNotifications
      parameters:
        - $ref: '#/components/parameters/startDateParam'
        - $ref: '#/components/parameters/endDateParam'
        - $ref: '#/components/parameters/subscriptionNameParam'
        - $ref: '#/components/parameters/subjectNameParam'
        - $ref: '#/components/parameters/pushStatusParam'
        - $ref: '#/components/parameters/notificationsOffsetParam'
        - $ref: '#/components/parameters/notificationsLimitParam'
      responses:
        '200':
          $ref: '#/components/responses/GetNotificationResponse'
        '400':
          $ref: '#/components/responses/NotFound'
        '403':
          $ref: '#/components/responses/Forbidden'
components:
  schemas:
    Subscription:
      properties:
        id:
          description: >-
            Subscription id, auto-generated by the system and read-only for the
            client
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724070
        name:
          description: >-
            Subscription name - must be unique for the client and must comprise
            letters, numbers, dashes and underscores only. To check for
            uniqueness, you can retrieve the existing collection of
            subscriptions by performing a GET on the /subscriptions resource
          type: string
          minLength: 1
          maxLength: 50
          example: TEST_SUBSCRIPTION
        subjectType:
          description: >-
            The type of event to which this subscription refers. Currently
            allowed values are 'PAYMENT_AUTHORIZATION', 'PAYMENT_UPDATE',
            'CLEARING', 'BPC_PAYMENT_AUTHORIZATION', 'TOKEN_PROVISIONING_EVENT'
            and 'TOKEN_LIFECYCLE_EVENT'.
          type: string
          minLength: 1
          maxLength: 50
          enum:
            - PAYMENT_AUTHORIZATION
            - PAYMENT_UPDATE
            - CLEARING
            - BPC_PAYMENT_AUTHORIZATION
            - TOKEN_PROVISIONING_EVENT
            - TOKEN_LIFECYCLE_EVENT
          example: PAYMENT_AUTHORIZATION
        subscriberId:
          description: The id of the subscriber (client) to which the subscription belongs
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724071
        active:
          description: >-
            Denotes whether the subscription is active (in which case
            notifications will be generated for matching events) or not (in
            which case no notifications will be generated for this subscription)
          type: boolean
          example: true
        specifications:
          description: >-
            A list of criteria specifications that define what events will cause
            notifications to be generated. If the list of specifications is
            empty, then notifications will be generated for all events for the
            specified subject type that the client is entitled to receive.
          type: array
          items:
            $ref: '#/components/schemas/Specification'
      required:
        - name
        - active
        - subjectType
    Specification:
      description: >-
        Specifies criteria to determine whether an event should cause a
        notification to be generated.
      type: object
      properties:
        id:
          description: >-
            Specification id, auto-generated by the system and read-only for the
            client
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724072
        type:
          description: >-
            The type of item to which the criteria refers. Currently the type
            'FIELD' is allowed, which refers to matching a field in the
            notification itself
          type: string
          minLength: 1
          maxLength: 255
          default: FIELD
          example: FIELD
        operator:
          description: >-
            The operator that defines how this specification (criteria)
            logically relates to other specifications in the list. The first
            specification in the list will have an operator of 'WHERE' and
            subsequent specifications will have an 'AND' or 'OR' relationship
            with their preceding specification
          type: string
          minLength: 1
          maxLength: 255
          default: WHERE
          example: WHERE
        fieldMappingName:
          description: The name of the field that is to be checked
          type: string
          minLength: 1
          maxLength: 255
          example: purchaseRequest.rcnAlias
        fieldOperator:
          description: >-
            The check operation that is to be performed. Currently one of
            allowed values are 'EQUALS', 'GREATER_THAN', 'LESS_THAN', 'BETWEEN'
          type: string
          minLength: 1
          maxLength: 255
          default: EQUALS
          example: EQUALS
        expectedContent:
          $ref: '#/components/schemas/FieldContent'
        children:
          description: >-
            A list of nested child specifications, used where needed to
            implement complex matching logic
          type: array
          items:
            $ref: '#/components/schemas/Specification'
      required:
        - type
        - operator
        - fieldMappingName
        - fieldOperator
        - expectedContent
    FieldMapping:
      description: >-
        A collection of field definitions any of which can be used to specify
        matching criteria when creating a subscription.
      type: object
      properties:
        id:
          description: Field mapping id
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724073
        name:
          description: The name used to refer to the field in the specification criteria.
          type: string
          minLength: 1
          maxLength: 255
          example: purchaseRequest.rcnAlias
        displayName:
          description: Descriptive name of the field
          type: string
          minLength: 1
          maxLength: 255
          example: Purchase request RCN alias
        subjectType:
          description: >-
            The type of subject to which the field refers. Currently allowed
            values are 'PAYMENT_AUTHORIZATION', 'PAYMENT_UPDATE', 'CLEARING',
            'BPC_PAYMENT_AUTHORIZATION', 'TOKEN_PROVISIONING_EVENT' and
            'TOKEN_LIFECYCLE_EVENT'.
          type: string
          minLength: 1
          maxLength: 50
          example: PAYMENT_AUTHORIZATION
        contentType:
          description: >-
            What type of information the field (and therefore the matching
            criteria for that field) will contain. Currently one of allowed
            values are 'INTEGER', 'number', 'TEXT', 'DATE', 'CURRENCY'.
          type: string
          default: TEXT
          example: TEXT
    FieldContent:
      description: >-
        The structure used to specify what content in the field should cause a
        match.
      type: object
      required:
        - contentType
        - value
      properties:
        contentType:
          description: >-
            The type of value that is being checked. Currently one of allowed
            values are 'INTEGER', 'number', 'TEXT', 'DATE', 'CURRENCY'
          type: string
          minLength: 1
          maxLength: 255
          default: TEXT
          example: TEXT
        value:
          description: The actual value to be checked
          type: object
          example: Travel Expense RCN
        anotherValue:
          description: >-
            An additional value to be checked, if the match operator takes more
            than one value (e.g. 'BETWEEN')
          type: object
          example: Travel Expense RCN
    SubscriptionDetails:
      properties:
        id:
          description: >-
            Subscription id, auto-generated by the system and read-only for the
            client
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724070
        name:
          description: >-
            Subscription name - must be unique for the client and must comprise
            letters, numbers, dashes and underscores only. To check for
            uniqueness, you can retrieve the existing collection of
            subscriptions by performing a GET on the /subscriptions resource
          type: string
          minLength: 1
          maxLength: 50
          example: TEST_SUBSCRIPTION
        subjectType:
          description: >-
            The type of event to which this subscription refers. Currently
            allowed values are 'PAYMENT_AUTHORIZATION', 'PAYMENT_UPDATE',
            'CLEARING', 'BPC_PAYMENT_AUTHORIZATION', 'TOKEN_PROVISIONING_EVENT',
            'TOKEN_LIFECYCLE_EVENT'
          type: string
          minLength: 1
          maxLength: 50
          example: PAYMENT_AUTHORIZATION
        subscriberId:
          description: The id of the subscriber (client) to which the subscription belongs
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724071
        active:
          description: >-
            Denotes whether the subscription is active (in which case
            notifications will be generated for matching events) or not (in
            which case no notifications will be generated for this subscription)
          type: boolean
          example: true
        specifications:
          description: >-
            A list of criteria specifications that define what events will cause
            notifications to be generated. If the list of specifications is
            empty, then notifications will be generated for all events for the
            specified subject type that the client is entitled to receive.
          type: array
          items:
            $ref: '#/components/schemas/SpecificationDetails'
      required:
        - name
        - active
        - subjectType
    SpecificationDetails:
      description: >-
        Specifies criteria to determine whether an event should cause a
        notification to be generated.
      type: object
      properties:
        id:
          description: >-
            Specification id, auto-generated by the system and read-only for the
            client
          type: string
          minLength: 1
          maxLength: 255
          readOnly: true
          example: >-
            CNSa91bf379b48a593fd17f07f431bad8fb296796498f4e9982ea134394c1fa4f071556724072
        type:
          description: >-
            The type of item to which the criteria refers. Currently the type
            'FIELD' is allowed, which refers to matching a field in the
            notification itself
          type: string
          minLength: 1
          maxLength: 255
          default: FIELD
          example: FIELD
        operator:
          description: >-
            The operator that defines how this specification (criteria)
            logically relates to other specifications in the list. The first
            specification in the list will have an operator of 'WHERE' and
            subsequent specifications will have an 'AND' or 'OR' relationship
            with their preceding specification
          type: string
          minLength: 1
          maxLength: 255
          default: WHERE
          example: WHERE
        fieldMapping:
          readOnly: true
          allOf:
            - $ref: '#/components/schemas/FieldMapping'
        fieldOperator:
          description: >-
            The check operation that is to be performed. Currently one of
            allowed values are 'EQUALS', 'GREATER_THAN', 'LESS_THAN', 'BETWEEN'
          type: string
          minLength: 1
          maxLength: 255
          default: EQUALS
          example: EQUALS
        expectedContent:
          $ref: '#/components/schemas/FieldContent'
        children:
          description: >-
            A list of nested child specifications, used where needed to
            implement complex matching logic
          type: array
          items:
            $ref: '#/components/schemas/SpecificationDetails'
      required:
        - type
        - operator
        - fieldMappingName
        - fieldOperator
        - expectedContent
    ICCPAuthorizationNotificationContent:
      description: >-
        The content of the notification, the structure of which depends on the
        subject.
      type: object
      properties:
        messageTypeIndicator:
          description: >-
            Message Type Identifier. Following are the possible values for
            messageTypeIndicator: 0110 (Authorization Response), 0120
            (Authorization Advice), 0400 (Reversal Request) and 0420 (Reversal
            Advice).
          type: string
          minLength: 4
          maxLength: 4
          example: '0110'
        systemTraceAuditNumber:
          description: >-
            Systems Trace Audit Number (STAN) is a number a message initiator
            assigns to uniquely identify a transaction. This value is derived
            from DE 11.
          type: string
          minLength: 1
          maxLength: 255
          example: '011174'
        financialNetworkCode:
          description: >-
            Financial network code derived from DE 63, subfield 1 identifies the
            specific program or service (for example, the financial network,
            financial program, or card program) with which the transaction is
            associated.
          type: string
          example: MCC
        banknetReferenceNumber:
          description: >-
            Banknet reference number derived from DE 63, subfield 2 is generated
            by the Authorization Platform for each originating message it
            routes. The reference number is guaranteed to be a unique value for
            any transaction within the specified financial network on any
            processing day.
          type: string
          example: Q4A91A
        transactionAmount:
          description: >-
            The transaction amount represented in minor units, which are the
            smallest units of a currency. The value is determined by the number
            of decimal places associated with the currency. Refers to DE 63,
            subfield 2.
          type: number
          example: 7550
        transactionCurrencyCode:
          description: Currency of the transaction (merchant currency) refers to DE 49.
          type: string
          example: USD
        billingAmount:
          description: >-
            Cardholder billing amount (DE 6) indicates the transaction amount in
            the issuers currency. It is the amount billed to the cardholder in
            the cardholder account currency, excluding cardholder billing fees
            and is represented in minor units, which are the smallest units of a
            currency. The value is determined by the number of decimal places
            associated with the currency.
          type: number
          example: 7550
        billingCurrencyCode:
          description: >-
            The currency code of the cardholder billing defines the currency of
            DE 6 (Amount, Cardholder Billing).
          type: string
          example: USD
        responseCode:
          description: >-
            DE 39 (Response Code) defines the disposition of a previous message
            or an action taken as a result of receipt of a previous message.
            Response codes also are used to indicate approval or decline of a
            transaction. In the event an authorization is declined, the response
            code indicates the reason for rejection and may indicate an action
            to be taken at the card acceptor (for example, capture card).
          type: string
          example: '00'
        authorizationCode:
          description: >-
            DE 38 (Authorization ID Response) contains the online authorization
            code provided by the issuer on the original authorization response.
            It is a transaction response ID code that the authorizing
            institution assigns. DE 38 is used to transmit a card issuers
            authorization code for Authorization transactions. In general, the
            authorization code used in DE 38 may be any combination of
            alphanumeric characters.
          type: string
          example: '502359'
        transmissionRawDate:
          description: >-
            DE 7, subfield 1 (Date) is the date (UTC) that the message was
            entered into the Mastercard Network in the format MMDD.
          type: string
          example: '1103'
        transmissionRawTime:
          description: >-
            DE 7, subfield 2 (Time) is the time (UTC) that the message was
            entered into the Mastercard Network in the format HHmmss.
          type: string
          example: '101611'
        settlementDate:
          description: >-
            Referring to DE 15, the reporting date to which a transaction
            applies in the format MMDD. This is the UTC date that the
            authorization is processed, not the date on which settlement will
            occur.
          type: string
          example: '0930'
        cardHolderTransactionTypeCode:
          description: DE 3, subfield 1 describes the specific transaction type.
          type: string
          example: '00'
        posTransactionStatus:
          description: >-
            DE 61, subfield 7 indicates the purpose or status of the request.
            Following are the possible values for posTransactionStatus:  0
            (Normal request [original presentment]),  2 (Identity Check Phone
            Order),  3 (ATM Installment Inquiry),  4 (Preauthorization
            request),  5 (Time Based Payment Authorization RequestBrazil
            domestic transactions),  6 (ATC Update),  8 (Account Status Inquiry
            Service (ASI)),  9 (Tokenization Request/Notification).
          type: string
          example: '0'
        traceId:
          description: >-
            Contains data from DE 63 (Network Data), subfield 1 (Financial
            Network Code) and subfield 2 (Banknet Reference Number) and DE 15
            (Date, Settlement) that is in the original Authorization Request
            Response/0110 message.
          type: string
          example: 'MCC9999991231  '
        merchant:
          description: Merchant details
          type: object
          properties:
            merchantId:
              description: >-
                DE 42 (Card Acceptor ID Code) identifies the card acceptor that
                defines the point of the transaction in both local and
                interchange environments. DE 42 is used as a merchant ID to
                uniquely identify the merchant in a POS transaction.
              type: string
              example: '497520000000000'
            categoryCode:
              description: >-
                DE 18 (Merchant Type) is the classification (card acceptor
                business code/merchant category code [MCC]) of the merchants
                type of business or service.
              type: string
              example: '5542'
            name:
              description: >-
                DE 43 (Acceptor Name and Location), subfield 1 (Acceptor Name)
                contains the merchant name against the merchant id. Merchant
                name is the merchant doing business as name.
              type: string
              example: JASPERHITECH
            city:
              description: >-
                ContainsDE 43 (Acceptor Name and Location), subfield 3 (Acceptor
                City) indicates the city of the merchant.
              type: string
              example: Jasper
            stateOrCountryCode:
              description: >-
                DE 43, subfield 5 contains the ISO 3166-1 country code of the
                merchant.
              type: string
              example: TN
        realPaymentCard:
          description: Real Payment Card Details
          type: object
          properties:
            number:
              description: >-
                DE 2 (Primary Account Number [PAN]) is a series of digits
                (represented masked) used to identify a customer account or
                relationship.
              type: string
              example: '************0112'
            expiryMonth:
              description: >-
                DE 14 (Date, Expiration) specifies the year and month after
                which an issuer assigns a cardholders card to be expired.
              type: string
              example: '12'
            expiryYear:
              description: >-
                DE 14 (Year, Expiration) specifies the year and month after
                which an issuer assigns a cardholders card to be expired.
              type: string
              example: '24'
        virtualPaymentCard:
          description: Virtual Payment Card Details
          type: object
          properties:
            number:
              description: >-
                DE 48, subelement 33, subfield 2 (Account Number) indicates the
                PAN (represented masked) mapping account number.
              type: string
              example: '************6213'
            expiryMonth:
              description: >-
                DE 48, subelement 33, subfield 3 (Expiration Date) indicates the
                expiration date of the PAN mapping account in format YYMM.
              type: string
              example: '09'
            expiryYear:
              description: >-
                DE 48, subelement 33, subfield 3 (Expiration Date) indicates the
                expiration date of the PAN mapping account in format YYMM.
              type: string
              example: '27'
        inControlOnBehalfServiceResult:
          description: >-
            In Control Service Result details, derived from DE 48 (Additional
            DataPrivate Use). DE 48 is reserved for private organizations to
            define data unique to specific networks or specific programs and
            services. DE 48 provides other supplemental data in a message when a
            specific ISO-designated data element is not available. It is a
            free-format, variable-length data element that may be used for
            multiple purposes.
          type: object
          properties:
            rcnServiceResultCode:
              description: >-
                In Control RCN Spend Control Service (generally will be null).
                DE 48, subelement 71 (On-behalf [OB] Services) notifies the
                issuer of the On-behalf Service performed on the transaction and
                the results. Subelement 71 will support up to ten services for a
                transaction.
              type: string
              example: ''
            vcnServiceResultCode:
              description: >-
                VCN Service Result Code. DE 48, subelement 71 (On-behalf [OB]
                Services) notifies the issuer of the On-behalf Service performed
                on the transaction and the results. Subelement 71 will support
                up to ten services for a transaction.
              type: string
              example: V
        originalMessage:
          description: >-
            Original message identifying information, in the case of a follow-up
            message. DE 90 (Original Data Elements) is the data elements in the
            original message, intended to identify a transaction for correction
            or reversal.
          type: object
          properties:
            messageTypeIndicator:
              description: >-
                DE 90, subfield 1 (Original Message Type Identifier) indicates
                the Message Type Identifier (MTI) of the original message.
              type: string
              minLength: 4
              maxLength: 4
              example: '0110'
            systemTraceAuditNumber:
              description: >-
                DE 90, subfield 2 (Original DE 11 [Systems Trace Audit Number])
                indicates the Systems Trace Audit Number (STAN) that was in DE
                11 of the original message.
              type: string
              example: '11174'
            transmissionRawDateTime:
              description: >-
                DE 90, subfield 3 (Original DE 7 [Transmission Date and Time])
                indicates the Transmission Date and Time that was in DE 7 of the
                original message.
              type: string
              example: '1029112800'
        advice:
          description: Advice information (valid for advice messages only, MTI=04xx).
          type: object
          properties:
            reasonCode:
              description: >-
                DE 60, subfield 1 (Advice Reason Code) indicates to the receiver
                of an Advice message the specific reason for the transmission of
                the Advice message.
              type: string
              example: '650'
        replacementAmounts:
          description: >-
            Replacement amounts, applicable for reversals, indicate the new
            values that replace the amounts in the original transaction. These
            amounts are represented in minor units, which are the smallest unit
            of a currency and vary depending on the number of decimal places
            used by the currency.
          type: object
          properties:
            transactionAmount:
              description: >-
                DE 95, subfield 1 (Actual Amount, Transaction) indicates the
                actual transaction amount. The amount for the replacement
                transaction represented in minor units, which are the smallest
                units of a currency. The value is determined by the number of
                decimal places associated with the currency.
              type: number
              example: 1200
            settlementAmount:
              description: >-
                DE 95, subfield 2 (Actual Amount, Settlement) indicates the
                actual settlement amount in the settlement currency. The amount
         

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# Full source: https://raw.githubusercontent.com/api-evangelist/mastercard/refs/heads/main/openapi/mastercard-commercial-event-notifications-openapi.yml