> ## Documentation Index
> Fetch the complete documentation index at: https://docs.services.payward.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get soft quote

> Returns a short-lived indicative price for a wallet-funded onchain swap.

A soft quote carries no execution details and cannot be executed or retrieved later; nothing is persisted. Use [Create onchain quote](/api-reference/onchain-quotes/create-onchain-quote) to obtain an executable quote.

Set `amount` on exactly one of `from` or `to`; the other side is calculated when the soft quote is priced.



## OpenAPI

````yaml https://d2588n1sy4m36o.cloudfront.net/uat/merged/openapi.json post /v1/accounts/{account_id}/onchain-quotes/soft
openapi: 3.1.0
info:
  title: PWS Public API
  version: '1'
  description: >-
    Integrate with Payward Services to onboard users, manage accounts and funds,
    trade assets, and receive event notifications.
  contact:
    name: Payward Services
servers:
  - url: https://api.sandbox.services.payward.com
security: []
tags:
  - name: Assets
    description: List the assets PWS is willing to swap.
    x-displayName: Assets
  - name: Conversions
    description: >-
      Rule-driven and on-demand fiat ↔ crypto value movement, including
      conversion rules and deposits.
    x-displayName: Conversions
  - name: Auto Earn
    description: >-
      Manage Auto Earn preferences and retrieve allocation and reward
      information.
    x-displayName: Auto Earn
  - name: Bonded Earn
    description: >-
      Allocate funds to and deallocate funds from bonded earn strategies, review
      allocations, and track request status.
    x-displayName: Bonded Earn
  - name: Funding
    description: >-
      Discover deposit and withdrawal options, manage deposit addresses, and
      move funds between accounts.
    x-displayName: Funding
  - name: Derivative transfers
    description: >-
      Move funds between an account's spot balance and the same owner's futures
      balance.
    x-displayName: Derivative transfers
  - name: Portfolio
    description: 'Inspect a customer''s portfolio: balances, valuations, and transactions.'
    x-displayName: Portfolio
  - name: Ramp
    description: >-
      Support Ramp flows with discovery, quotes, limits, and hosted checkout
      experiences.
    x-displayName: Ramp
  - name: Reports
    description: Settlement and reconciliation reports for the partner.
    x-displayName: Reports
  - name: Swaps
    description: Account-funded quotes that lock a price until they expire or are executed.
    x-displayName: Swaps
  - name: Onchain quotes
    description: Wallet-funded quotes that return the data needed to settle onchain.
    x-displayName: Onchain quotes
  - name: Price trigger swaps
    description: Swaps that wait for a target price before submitting a trade.
    x-displayName: Price trigger swaps
  - name: Travel Rule verifications
    description: Travel Rule address ownership verification flows.
    x-displayName: Travel Rule verifications
  - name: Users
    description: >-
      User onboarding and status flows that the partner manages.


      - **Create User** provisions an account-owned user from an external
      reference and optional email.

      - **Get User** retrieves the user's profile, verification status, and
      required actions.


      Use the returned user `id` for calls that require the user's identifier.
    x-displayName: Users
  - name: Verifications
    description: Identity verification (KYC) submission and status for end users.
    x-displayName: Verifications
  - name: Webhooks
    description: >-
      Register HTTPS destinations to receive event deliveries, rotate signing
      secrets, and inspect, update, or delete existing subscriptions. Each
      subscription is owned by the authenticated partner; deliveries are signed
      with HMAC-SHA256 and retried on transient failures.
    x-displayName: Webhooks
paths:
  /v1/accounts/{account_id}/onchain-quotes/soft:
    parameters:
      - $ref: '#/components/parameters/AccountId'
    post:
      tags:
        - Onchain quotes
      summary: Get soft quote
      description: >-
        Returns a short-lived indicative price for a wallet-funded onchain swap.


        A soft quote carries no execution details and cannot be executed or
        retrieved later; nothing is persisted. Use [Create onchain
        quote](/api-reference/onchain-quotes/create-onchain-quote) to obtain an
        executable quote.


        Set `amount` on exactly one of `from` or `to`; the other side is
        calculated when the soft quote is priced.
      operationId: getSoftQuote
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - from
                - to
                - network
              properties:
                from:
                  $ref: '#/components/schemas/OnchainQuotes_GetSoftQuoteFrom'
                to:
                  $ref: '#/components/schemas/OnchainQuotes_GetSoftQuoteTo'
                network:
                  $ref: '#/components/schemas/OnchainQuotes_WalletNetwork'
                  description: Network for which the indicative price is quoted.
            examples:
              indicative-price-for-buying-xstocks-with-usdc:
                summary: Indicative price for buying xStocks with USDC
                value:
                  from:
                    symbol: USDC
                    type: stablecoin
                  to:
                    symbol: TSLAx
                    type: xstock
                    amount: '10'
                  network: ethereum
      responses:
        '200':
          description: ''
          headers:
            X-Trace-Id:
              $ref: '#/components/headers/TraceId'
            Strict-Transport-Security:
              $ref: '#/components/headers/StrictTransportSecurity'
            Cache-Control:
              $ref: '#/components/headers/CacheControl'
          content:
            application/json:
              schema:
                type: object
                required:
                  - data
                properties:
                  data:
                    $ref: '#/components/schemas/OnchainQuotes_SoftQuote'
              examples:
                indicative-soft-quote:
                  summary: Indicative soft quote
                  value:
                    data:
                      from:
                        symbol: USDC
                        type: stablecoin
                        amount: '1853.4'
                      to:
                        symbol: TSLAx
                        type: xstock
                        amount: '10'
                      rate:
                        base:
                          symbol: TSLAx
                          type: xstock
                        quote:
                          symbol: USDC
                          type: stablecoin
                        price: '185.34'
        '400':
          description: ''
          headers:
            X-Trace-Id:
              $ref: '#/components/headers/TraceId'
            Strict-Transport-Security:
              $ref: '#/components/headers/StrictTransportSecurity'
            Cache-Control:
              $ref: '#/components/headers/CacheControl'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestError'
              examples:
                soft-quote-request-validation-failed:
                  $ref: '#/components/examples/swap-onchain-quote-validation'
        '401':
          $ref: '#/components/responses/SwapOnchainQuoteUnauthenticatedResponse'
        '403':
          description: ''
          headers:
            X-Trace-Id:
              $ref: '#/components/headers/TraceId'
            Strict-Transport-Security:
              $ref: '#/components/headers/StrictTransportSecurity'
            Cache-Control:
              $ref: '#/components/headers/CacheControl'
          content:
            application/json:
              schema:
                oneOf:
                  - $ref: '#/components/schemas/ForbiddenError'
                    title: Forbidden
                  - $ref: '#/components/schemas/OnchainQuotes_TradeLockedError'
                    title: Trade Locked
              examples:
                caller-is-not-allowed:
                  $ref: '#/components/examples/swap-onchain-quote-forbidden'
                trade-is-locked:
                  $ref: '#/components/examples/swap-onchain-trade-locked'
        '429':
          $ref: '#/components/responses/SwapOnchainQuoteResourceExhaustedResponse'
        '500':
          $ref: '#/components/responses/SwapOnchainQuoteInternalResponse'
        '503':
          $ref: '#/components/responses/SwapOnchainQuoteUnavailableResponse'
        '504':
          $ref: '#/components/responses/SwapOnchainQuoteDeadlineExceededResponse'
      security:
        - ApiKey: []
          ApiSign: []
          ApiNonce: []
components:
  parameters:
    AccountId:
      name: account_id
      in: path
      required: true
      example: WVSD33HRMGSZUBM7
      schema:
        $ref: '#/components/schemas/AccountId'
  schemas:
    OnchainQuotes_GetSoftQuoteFrom:
      description: >-
        Source side of a soft quote request. Set `amount` here when the source
        amount is fixed.
      type: object
      required:
        - symbol
        - type
      properties:
        symbol:
          $ref: '#/components/schemas/AssetSymbol'
          description: Source asset ticker symbol.
        type:
          $ref: '#/components/schemas/OnchainQuotes_AssetType'
          description: Classification of the source asset.
        amount:
          description: Decimal asset amount as a string to preserve precision.
          type: string
          maxLength: 32
          pattern: ^[0-9]+(\.[0-9]+)?$
    OnchainQuotes_GetSoftQuoteTo:
      description: >-
        Destination side of a soft quote request. Set `amount` here when the
        destination amount is fixed.
      type: object
      required:
        - symbol
        - type
      properties:
        symbol:
          $ref: '#/components/schemas/AssetSymbol'
          description: Destination asset ticker symbol.
        type:
          $ref: '#/components/schemas/OnchainQuotes_AssetType'
          description: Classification of the destination asset.
        amount:
          description: Decimal asset amount as a string to preserve precision.
          type: string
          maxLength: 32
          pattern: ^[0-9]+(\.[0-9]+)?$
    OnchainQuotes_WalletNetwork:
      description: Blockchain network used for wallet-funded onchain execution.
      type: string
      enum:
        - ethereum
    OnchainQuotes_SoftQuote:
      description: >-
        A short-lived indicative price for a wallet-funded onchain swap. It
        carries no execution details and cannot be executed.
      type: object
      required:
        - from
        - to
        - rate
      properties:
        from:
          $ref: '#/components/schemas/OnchainQuotes_AssetAmount'
          description: Source asset and amount for the trade.
        to:
          $ref: '#/components/schemas/OnchainQuotes_AssetAmount'
          description: Destination asset and amount for the trade.
        rate:
          $ref: '#/components/schemas/OnchainQuotes_Rate'
          description: Indicative exchange rate for the soft quote.
    BadRequestError:
      title: Bad Request
      description: Request validation failed or the request could not be processed.
      oneOf:
        - title: Bad Request
          allOf:
            - $ref: '#/components/schemas/PwsValidationErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsValidationError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        status:
                          type: integer
                          format: int32
                          const: 400
                        code:
                          type: string
                          enum:
                            - bad_request
        - title: Gateway
          description: >-
            Gateway-level validation failure returned before the request reaches
            the service.
          allOf:
            - $ref: '#/components/schemas/PwsValidationErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsValidationError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        type:
                          type: string
                          const: service_error
                        status:
                          type: integer
                          format: int32
                          const: 400
                        code:
                          type: string
                          const: gateway
    ForbiddenError:
      title: Forbidden
      description: The caller is not allowed to perform this operation.
      oneOf:
        - title: Forbidden
          allOf:
            - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsGeneralError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        status:
                          type: integer
                          format: int32
                          const: 403
                        code:
                          type: string
                          enum:
                            - forbidden
        - title: Gateway
          description: Authorization failure returned by the API gateway.
          allOf:
            - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsGeneralError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        type:
                          type: string
                          const: service_error
                        status:
                          type: integer
                          format: int32
                          const: 403
                        code:
                          type: string
                          const: gateway
    OnchainQuotes_TradeLockedError:
      title: Trade Locked
      description: The trade cannot proceed because the source or destination is locked.
      allOf:
        - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
        - type: object
          required:
            - error
          properties:
            error:
              allOf:
                - $ref: '#/components/schemas/PwsGeneralError'
                - type: object
                  required:
                    - status
                    - code
                  properties:
                    status:
                      type: integer
                      format: int32
                      const: 403
                    code:
                      type: string
                      enum:
                        - trade_locked
    AccountId:
      description: Globally unique public identifier for an account.
      type: string
      minLength: 14
      maxLength: 42
    AssetSymbol:
      description: Symbol identifying an asset within its asset category.
      type: string
      minLength: 1
      maxLength: 16
    OnchainQuotes_AssetType:
      description: Asset classifications currently supported by Swap trading endpoints.
      type: string
      enum:
        - fiat
        - crypto
        - xstock
        - stablecoin
    OnchainQuotes_AssetAmount:
      description: An asset and the decimal amount denominated in that asset.
      type: object
      required:
        - symbol
        - type
        - amount
      properties:
        symbol:
          description: Asset ticker symbol, such as BTC, USD, or TSLAx.
          type: string
        type:
          $ref: '#/components/schemas/OnchainQuotes_AssetType'
          description: Classification of the asset.
        amount:
          description: Decimal amount as a string to preserve precision.
          type: string
    OnchainQuotes_Rate:
      description: Exchange rate applied to a quote or executed price-triggered swap.
      type: object
      required:
        - base
        - quote
        - price
      properties:
        base:
          $ref: '#/components/schemas/OnchainQuotes_AssetRef'
          description: Base asset of the rate pair.
        quote:
          $ref: '#/components/schemas/OnchainQuotes_AssetRef'
          description: Quote asset of the rate pair.
        price:
          $ref: '#/components/schemas/Price'
          description: Price of one unit of the base asset denominated in the quote asset.
    PwsValidationErrorEnvelope:
      description: Error envelope for request validation failures.
      type: object
      required:
        - error
      properties:
        error:
          $ref: '#/components/schemas/PwsValidationError'
          description: Validation error details.
    PwsValidationError:
      description: Standard PWS API error object for request validation failures.
      type: object
      required:
        - type
        - status
        - instance
        - code
      properties:
        type:
          description: Machine-readable error class.
          type: string
        status:
          description: HTTP status code returned for this error.
          type: integer
          format: int32
        instance:
          description: Request identifier for this specific error occurrence.
          type: string
        code:
          description: Stable machine-readable error code.
          type: string
        doc_url:
          description: Optional link to documentation for this error.
          type: string
          format: uri
        causes:
          description: Validation failures that contributed to the error.
          type: array
          items:
            $ref: '#/components/schemas/PwsErrorCause'
    UnauthenticatedError:
      title: Unauthenticated
      description: Authentication credentials are missing, invalid, or not accepted.
      oneOf:
        - title: Unauthenticated
          allOf:
            - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsGeneralError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        status:
                          type: integer
                          format: int32
                          const: 401
                        code:
                          type: string
                          enum:
                            - unauthenticated
        - title: Gateway
          description: Authentication failure returned by the API gateway.
          allOf:
            - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
            - type: object
              required:
                - error
              properties:
                error:
                  allOf:
                    - $ref: '#/components/schemas/PwsGeneralError'
                    - type: object
                      required:
                        - status
                        - code
                      properties:
                        type:
                          type: string
                          const: service_error
                        status:
                          type: integer
                          format: int32
                          const: 401
                        code:
                          type: string
                          const: gateway
    PwsGeneralErrorEnvelope:
      description: Error envelope for operational or domain failures.
      type: object
      required:
        - error
      properties:
        error:
          $ref: '#/components/schemas/PwsGeneralError'
          description: General error details.
    PwsGeneralError:
      description: Standard PWS API error object for non-validation failures.
      allOf:
        - $ref: '#/components/schemas/PwsErrorBase'
        - type: object
          properties:
            causes:
              description: Additional error details, when present.
              type: array
              items:
                type: object
                additionalProperties: true
    ResourceExhaustedError:
      description: The request was rate limited or a resource quota was exhausted.
      allOf:
        - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
        - type: object
          required:
            - error
          properties:
            error:
              allOf:
                - $ref: '#/components/schemas/PwsGeneralError'
                - type: object
                  required:
                    - status
                    - code
                  properties:
                    status:
                      type: integer
                      format: int32
                      const: 429
                    code:
                      type: string
                      enum:
                        - resource_exhausted
    InternalError:
      description: An unexpected server-side error occurred.
      allOf:
        - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
        - type: object
          required:
            - error
          properties:
            error:
              allOf:
                - $ref: '#/components/schemas/PwsGeneralError'
                - type: object
                  required:
                    - status
                    - code
                  properties:
                    status:
                      type: integer
                      format: int32
                      const: 500
                    code:
                      type: string
                      enum:
                        - internal
    UnavailableError:
      description: The service is temporarily unavailable.
      allOf:
        - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
        - type: object
          required:
            - error
          properties:
            error:
              allOf:
                - $ref: '#/components/schemas/PwsGeneralError'
                - type: object
                  required:
                    - status
                    - code
                  properties:
                    status:
                      type: integer
                      format: int32
                      const: 503
                    code:
                      type: string
                      enum:
                        - unavailable
    DeadlineExceededError:
      description: The request deadline was exceeded before a response could be produced.
      allOf:
        - $ref: '#/components/schemas/PwsGeneralErrorEnvelope'
        - type: object
          required:
            - error
          properties:
            error:
              allOf:
                - $ref: '#/components/schemas/PwsGeneralError'
                - type: object
                  required:
                    - status
                    - code
                  properties:
                    status:
                      type: integer
                      format: int32
                      const: 504
                    code:
                      type: string
                      enum:
                        - deadline_exceeded
    OnchainQuotes_AssetRef:
      description: Reference to an asset by ticker symbol and classification.
      type: object
      required:
        - symbol
        - type
      properties:
        symbol:
          description: Asset ticker symbol, such as BTC, USD, or TSLAx.
          type: string
        type:
          $ref: '#/components/schemas/OnchainQuotes_AssetType'
          description: Classification of the asset.
    Price:
      description: >-
        Price of one unit of an asset or instrument in the applicable quote
        units.
      type: string
      minLength: 1
      maxLength: 64
      pattern: ^[0-9]+(\.[0-9]+)?$
    PwsErrorCause:
      description: A single request validation failure.
      type: object
      required:
        - field
        - message
      properties:
        field:
          description: Dot-notation path to the offending request field.
          type: string
        message:
          description: Human-readable explanation of the failed validation rule.
          type: string
    PwsErrorBase:
      description: Common fields present on every PWS API error object.
      type: object
      required:
        - type
        - status
        - instance
        - code
      properties:
        type:
          description: Machine-readable error class.
          type: string
        status:
          description: HTTP status code returned for this error.
          type: integer
          format: int32
        instance:
          description: Request identifier for this specific error occurrence.
          type: string
        code:
          description: Stable machine-readable error code.
          type: string
        doc_url:
          description: Optional link to documentation for this error.
          type: string
          format: uri
  headers:
    TraceId:
      description: Trace identifier for the request. Include it when contacting support.
      schema:
        type: string
        example: 4bf92f3577b34da6a3ce929d0e0e4736
    StrictTransportSecurity:
      description: Enforces HTTPS for the duration specified by `max-age`.
      schema:
        type: string
        example: max-age=31536000; includeSubDomains; preload
    CacheControl:
      description: Prevents caching of sensitive financial data. Always `no-store`.
      schema:
        type: string
        enum:
          - no-store
        example: no-store
  examples:
    swap-onchain-quote-validation:
      summary: Onchain quote request validation failed
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 400
          code: bad_request
          causes:
            - field: to.amount
              message: must match pattern "^[0-9]+(\.[0-9]+)?$"
    swap-onchain-quote-forbidden:
      summary: Caller is not allowed
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 403
          code: forbidden
    swap-onchain-trade-locked:
      summary: Trade is locked
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 403
          code: trade_locked
    swap-onchain-quote-unauthenticated:
      summary: Authentication failed
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 401
          code: unauthenticated
    swap-onchain-quote-resource-exhausted:
      summary: Rate limit exceeded
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 429
          code: resource_exhausted
    swap-onchain-quote-internal:
      summary: Internal error
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 500
          code: internal
    swap-onchain-quote-service-unavailable:
      summary: Service unavailable
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 503
          code: unavailable
    swap-onchain-quote-deadline-exceeded:
      summary: Request deadline exceeded
      value:
        error:
          type: onchain_quote_error
          instance: 5f4d2a8e-91a4-4d6c-8a17-9b1e2c3f4a5b
          status: 504
          code: deadline_exceeded
  responses:
    SwapOnchainQuoteUnauthenticatedResponse:
      description: ''
      headers:
        X-Trace-Id:
          $ref: '#/components/headers/TraceId'
        Strict-Transport-Security:
          $ref: '#/components/headers/StrictTransportSecurity'
        Cache-Control:
          $ref: '#/components/headers/CacheControl'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/UnauthenticatedError'
          examples:
            authentication-failed:
              $ref: '#/components/examples/swap-onchain-quote-unauthenticated'
    SwapOnchainQuoteResourceExhaustedResponse:
      description: ''
      headers:
        X-Trace-Id:
          $ref: '#/components/headers/TraceId'
        Strict-Transport-Security:
          $ref: '#/components/headers/StrictTransportSecurity'
        Cache-Control:
          $ref: '#/components/headers/CacheControl'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ResourceExhaustedError'
          examples:
            rate-limit-exceeded:
              $ref: '#/components/examples/swap-onchain-quote-resource-exhausted'
    SwapOnchainQuoteInternalResponse:
      description: ''
      headers:
        X-Trace-Id:
          $ref: '#/components/headers/TraceId'
        Strict-Transport-Security:
          $ref: '#/components/headers/StrictTransportSecurity'
        Cache-Control:
          $ref: '#/components/headers/CacheControl'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InternalError'
          examples:
            internal-error:
              $ref: '#/components/examples/swap-onchain-quote-internal'
    SwapOnchainQuoteUnavailableResponse:
      description: ''
      headers:
        X-Trace-Id:
          $ref: '#/components/headers/TraceId'
        Strict-Transport-Security:
          $ref: '#/components/headers/StrictTransportSecurity'
        Cache-Control:
          $ref: '#/components/headers/CacheControl'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/UnavailableError'
          examples:
            service-unavailable:
              $ref: '#/components/examples/swap-onchain-quote-service-unavailable'
    SwapOnchainQuoteDeadlineExceededResponse:
      description: ''
      headers:
        X-Trace-Id:
          $ref: '#/components/headers/TraceId'
        Strict-Transport-Security:
          $ref: '#/components/headers/StrictTransportSecurity'
        Cache-Control:
          $ref: '#/components/headers/CacheControl'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/DeadlineExceededError'
          examples:
            request-deadline-exceeded:
              $ref: '#/components/examples/swap-onchain-quote-deadline-exceeded'
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: API-Key
      description: Your public API key. Identifies the partner making the request.
    ApiSign:
      type: apiKey
      in: header
      name: API-Sign
      description: HMAC signature over the request, computed with your private key.
    ApiNonce:
      type: apiKey
      in: header
      name: API-Nonce
      description: Monotonically increasing nonce included in the request signature.

````