eBay · Capability
eBay Order API — Guest_checkout_session

eBay Order API — Guest_checkout_session. 7 operations. Lead operation: Guest_checkout_session. Self-contained Naftiko capability covering one Ebay business surface.
Run with Naftiko EbayGuest_checkout_session
What You Can Do

POST
Initiateguestcheckoutsession — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/initiate
GET
Getguestcheckoutsession — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}
POST
Applyguestcoupon — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}/apply-coupon
POST
Removeguestcoupon — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}/remove-coupon
POST
Updateguestquantity — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}/update-quantity
POST
Updateguestshippingaddress — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}/update-shipping-address
POST
Updateguestshippingoption — Note: The Order API (v2) currently only supports the guest payment/checkout flow. If you need to support member payment/checkout flow, use the v1_beta version
/v1/guest-checkout-session/{checkoutsessionid}/update-shipping-option
MCP Tools

Capability Spec

naftiko: 1.0.0-alpha2
info:
  label: eBay Order API — Guest_checkout_session
  description: 'eBay Order API — Guest_checkout_session. 7 operations. Lead operation: Guest_checkout_session. Self-contained
    Naftiko capability covering one Ebay business surface.'
  tags:
  - Ebay
  - Guest_checkout_session
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    EBAY_API_KEY: EBAY_API_KEY
capability:
  consumes:
  - type: http
    namespace: order-guest-checkout-session
    baseUri: https://apix.ebay.com{basePath}
    description: eBay Order API — Guest_checkout_session business capability. Self-contained, no shared references.
    resources:
    - name: guest_checkout_session-initiate
      path: /guest_checkout_session/initiate
      operations:
      - name: initiateguestcheckoutsession
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur.<br><br>See <a href="/api-docs/static/rest-request-components.html#marketpl
            " target="_bl
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: guest_checkout_session-checkoutSessionId
      path: /guest_checkout_session/{checkoutSessionId}
      operations:
      - name: getguestcheckoutsession
        method: GET
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
    - name: guest_checkout_session-checkoutSessionId-apply_coupon
      path: /guest_checkout_session/{checkoutSessionId}/apply_coupon
      operations:
      - name: applyguestcoupon
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: guest_checkout_session-checkoutSessionId-remove_coupon
      path: /guest_checkout_session/{checkoutSessionId}/remove_coupon
      operations:
      - name: removeguestcoupon
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: guest_checkout_session-checkoutSessionId-update_quantity
      path: /guest_checkout_session/{checkoutSessionId}/update_quantity
      operations:
      - name: updateguestquantity
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: guest_checkout_session-checkoutSessionId-update_shipping_address
      path: /guest_checkout_session/{checkoutSessionId}/update_shipping_address
      operations:
      - name: updateguestshippingaddress
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    - name: guest_checkout_session-checkoutSessionId-update_shipping_option
      path: /guest_checkout_session/{checkoutSessionId}/update_shipping_option
      operations:
      - name: updateguestshippingoption
        method: POST
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: checkoutSessionId
          in: path
          type: string
          description: This path parameter specifies the unique eBay-assigned session identifier for a specific eBay marketplace.<br><br>This
            value is returned by the <a href="/api-do
          required: true
        - name: X-EBAY-C-MARKETPLACE-ID
          in: header
          type: string
          description: This header identifies the eBay marketplace where the order will occur. <br><br><span class="tablenote"><b>Note:</b>  For
            this method, this value must match the
          required: true
        - name: Content-Type
          in: header
          type: string
          description: 'This header indicates the format of the request body provided by the client. Its value should be set
            to <b>application/json</b>. <br><br> For more information, '
          required: true
        - name: X-EBAY-C-ENDUSERCTX
          in: header
          type: string
          description: This header is used to specify the <b>deviceId</b> for the device/user attempting to make the call.<br><br>It
            contains an alphanumeric string that allows a paym
        - name: body
          in: body
          type: object
          description: Request body (JSON).
          required: false
    authentication:
      type: bearer
      token: '{{env.EBAY_API_KEY}}'
  exposes:
  - type: rest
    namespace: order-guest-checkout-session-rest
    port: 8080
    description: REST adapter for eBay Order API — Guest_checkout_session. One Spectral-compliant resource per consumed operation,
      prefixed with /v1.
    resources:
    - path: /v1/guest-checkout-session/initiate
      name: guest-checkout-session-initiate
      description: REST surface for guest_checkout_session-initiate.
      operations:
      - method: POST
        name: initiateguestcheckoutsession
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.initiateguestcheckoutsession
        with:
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}
      name: guest-checkout-session-checkoutsessionid
      description: REST surface for guest_checkout_session-checkoutSessionId.
      operations:
      - method: GET
        name: getguestcheckoutsession
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.getguestcheckoutsession
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}/apply-coupon
      name: guest-checkout-session-checkoutsessionid-apply-coupon
      description: REST surface for guest_checkout_session-checkoutSessionId-apply_coupon.
      operations:
      - method: POST
        name: applyguestcoupon
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.applyguestcoupon
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}/remove-coupon
      name: guest-checkout-session-checkoutsessionid-remove-coupon
      description: REST surface for guest_checkout_session-checkoutSessionId-remove_coupon.
      operations:
      - method: POST
        name: removeguestcoupon
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.removeguestcoupon
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}/update-quantity
      name: guest-checkout-session-checkoutsessionid-update-quantity
      description: REST surface for guest_checkout_session-checkoutSessionId-update_quantity.
      operations:
      - method: POST
        name: updateguestquantity
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.updateguestquantity
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}/update-shipping-address
      name: guest-checkout-session-checkoutsessionid-update-shipping-address
      description: REST surface for guest_checkout_session-checkoutSessionId-update_shipping_address.
      operations:
      - method: POST
        name: updateguestshippingaddress
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.updateguestshippingaddress
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/guest-checkout-session/{checkoutsessionid}/update-shipping-option
      name: guest-checkout-session-checkoutsessionid-update-shipping-option
      description: REST surface for guest_checkout_session-checkoutSessionId-update_shipping_option.
      operations:
      - method: POST
        name: updateguestshippingoption
        description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
          flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
          version
        call: order-guest-checkout-session.updateguestshippingoption
        with:
          checkoutSessionId: rest.checkoutSessionId
          X-EBAY-C-MARKETPLACE-ID: rest.X-EBAY-C-MARKETPLACE-ID
          Content-Type: rest.Content-Type
          X-EBAY-C-ENDUSERCTX: rest.X-EBAY-C-ENDUSERCTX
          body: rest.body
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: order-guest-checkout-session-mcp
    port: 9090
    transport: http
    description: MCP adapter for eBay Order API — Guest_checkout_session. One tool per consumed operation, routed inline through
      this capability's consumes block.
    tools:
    - name: span-class-tablenote-b-note-b-order-api
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.initiateguestcheckoutsession
      with:
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-2
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: order-guest-checkout-session.getguestcheckoutsession
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-3
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.applyguestcoupon
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-4
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.removeguestcoupon
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-5
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.updateguestquantity
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-6
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.updateguestshippingaddress
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.
    - name: span-class-tablenote-b-note-b-order-api-7
      description: <span class="tablenote"><b>Note:</b> The Order API (v2) currently only supports the guest payment/checkout
        flow. If you need to support member payment/checkout flow, use the <a href="/api-docs/buy/order_v1/resources/methods">v1_beta
        version
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: order-guest-checkout-session.updateguestshippingoption
      with:
        checkoutSessionId: tools.checkoutSessionId
        X-EBAY-C-MARKETPLACE-ID: tools.X-EBAY-C-MARKETPLACE-ID
        Content-Type: tools.Content-Type
        X-EBAY-C-ENDUSERCTX: tools.X-EBAY-C-ENDUSERCTX
        body: tools.body
      outputParameters:
      - type: object
        mapping: $.