Western Alliance Bank Wires Request API

openapi: 3.1.0
info:
  title: Western Alliance Bank Wires Request API
  version: v1
  description: 'Submits a wire transfer request (Fedwire or other method of payment) from a virtual account.


    Derived mechanically from the ''Wires Request API'' Postman collection published on the WAB API Developer Portal (family:
    Transactional APIs). Every path, header, query parameter and request body comes from that collection; response bodies
    are not captured because the collection ships none.'
  contact:
    name: Western Alliance Bank API Developer Portal
    url: https://developer.westernalliancebank.com/s/
  termsOfService: https://www.westernalliancebancorporation.com/sites/default/files/2025-05/api-services-terms-conditions.pdf
  x-family: Transactional
  x-generated-from: postman
  x-source: https://developer.westernalliancebank.com/sfsites/c/cms/delivery/media/MCJUIZSAE2RBGVPGZKSFAQABOWGM
  x-source-page: https://developer.westernalliancebank.com/s/postman-collection
  x-provenance:
    generated: '2026-09-17'
    method: derived
    source: postman/western-alliance-bancorporation-wires-request-api.postman_collection.json
    note: Mechanical Postman -> OpenAPI conversion; no operations, parameters or examples were added beyond the collection.
servers:
- url: https://api-connect.westernalliancebank.com
  description: Production (Client ID / Client Secret and token issued at Treasury Management enrollment)
- url: https://api-connect.westernalliancebanktest.com
  description: Client UAT environment (all data must be fake / masked test data per the API Services Terms)
tags:
- name: Get Token
- name: Health Check
- name: Wires Request API
paths:
  /entitlements-get-token-eapi/api/v1/token:
    get:
      operationId: getToken
      summary: Get token
      tags:
      - Get Token
      parameters:
      - name: Scope
        in: query
        required: true
        schema:
          type: string
        example: Informational
      - name: appClientId
        in: header
        required: true
        schema:
          type: string
        description: Credential header (appClientId); value issued by Western Alliance Bank at enrollment. Never publish real
          values.
      - name: appClientSecret
        in: header
        required: true
        schema:
          type: string
        description: Credential header (appClientSecret); value issued by Western Alliance Bank at enrollment. Never publish
          real values.
      - name: X-Correlation-ID
        in: header
        required: true
        schema:
          type: string
          format: uuid
        description: Client-generated GUID used to correlate the request across WAB systems.
      - name: X-Source-System
        in: header
        required: false
        schema:
          type: string
      security: []
      responses:
        '200':
          description: Successful response. The published collection ships no saved response, so the response schema is not
            captured here.
  /trnsct-wires-rqst-eapi/api/v1/healthcheck:
    get:
      operationId: healthcheck
      summary: Healthcheck
      tags:
      - Health Check
      parameters:
      - name: X-Correlation-ID
        in: header
        required: true
        schema:
          type: string
          format: uuid
        description: Client-generated GUID used to correlate the request across WAB systems.
      - name: X-Source-System
        in: header
        required: false
        schema:
          type: string
      - name: X-Dependent-Ping
        in: header
        required: true
        schema:
          type: string
        example: 'false'
      security:
      - bearerToken: []
      responses:
        '200':
          description: Successful response. The published collection ships no saved response, so the response schema is not
            captured here.
  /trnsct-wires-rqst-eapi/api/v1/wires/transferRequest:
    put:
      operationId: wiresRequestAPI
      summary: Wires Request API
      tags:
      - Wires Request API
      parameters:
      - name: X-Correlation-ID
        in: header
        required: true
        schema:
          type: string
          format: uuid
        description: Client-generated GUID used to correlate the request across WAB systems.
      - name: X-Source-System
        in: header
        required: false
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                SystemIdentifier:
                  type: string
                WireConfirmationNumber:
                  type: string
                MethodOfPayment:
                  type: string
                ProcessingDate:
                  type: string
                Amount:
                  type: string
                Currency:
                  type: string
                VirtualAccountNumber:
                  type: string
                VirtualAccountName:
                  type: string
                VirtualAccountAddress1:
                  type: string
                VirtualAccountAddress2:
                  type: string
                VirtualAccountAddress3:
                  type: string
                OriginationAccountNumber:
                  type: string
                PaymentInformationCode:
                  type: string
                Intermediary1BankName:
                  type: string
                Intermediary1BankId:
                  type: string
                BeneficiaryAccountNumber:
                  type: string
                OBI:
                  type: string
                ProcessingInstruction:
                  type: string
                OriginatorName:
                  type: string
                OriginatorBankRoutingNumber:
                  type: string
                OriginatorAddress1:
                  type: string
                OriginatorAddress2:
                  type: string
                OriginatorAddress3:
                  type: string
                BeneficiaryBankIdType:
                  type: string
                BeneficiaryBankId:
                  type: string
                BeneficiaryName:
                  type: string
                BeneficiaryAddress1:
                  type: string
                BeneficiaryAddress2:
                  type: string
                BeneficiaryAddress3:
                  type: string
                BeneficiaryCountry:
                  type: string
                BeneficiaryBankAddress1:
                  type: string
                BeneficiaryBankAddress2:
                  type: string
                BeneficiaryBankAddress3:
                  type: string
                Intermediary2BankIdType:
                  type: string
                Intermediary2BankId:
                  type: string
                Intermediary2BankName:
                  type: string
                Intermediary2BankAddress1:
                  type: string
                Intermediary2BankAddress2:
                  type: string
                Intermediary2BankAddress3:
                  type: string
                Intermediary1BankIdType:
                  type: string
                Intermediary1BankAddress1:
                  type: string
                Intermediary1BankAddress2:
                  type: string
                Intermediary1BankAddress3:
                  type: string
            example:
              SystemIdentifier: BIN
              WireConfirmationNumber: BIN2975658797
              MethodOfPayment: FED
              ProcessingDate: '20221016'
              Amount: '00000000000000505'
              Currency: USD
              VirtualAccountNumber: '1234567'
              VirtualAccountName: VAN-ACCName
              VirtualAccountAddress1: 123, ABC Lane
              VirtualAccountAddress2: AZ
              VirtualAccountAddress3: ''
              OriginationAccountNumber: '8010334723'
              PaymentInformationCode: CTR
              Intermediary1BankName: WESTERN ALLIANCE BANK
              Intermediary1BankId: '222105980'
              BeneficiaryAccountNumber: '123456'
              OBI: ''
              ProcessingInstruction: ''
              OriginatorName: Test Company
              OriginatorBankRoutingNumber: '132402104'
              OriginatorAddress1: ''
              OriginatorAddress2: Ste 1400
              OriginatorAddress3: Phoenix, AZ 85004
              BeneficiaryBankIdType: FW
              BeneficiaryBankId: '222105980'
              BeneficiaryName: Test Group
              BeneficiaryAddress1: 1234 Anywhere St, Laveen
              BeneficiaryAddress2: AZ,85339
              BeneficiaryAddress3: AMM
              BeneficiaryCountry: US
              BeneficiaryBankAddress1: PHOENIX
              BeneficiaryBankAddress2: AZ
              BeneficiaryBankAddress3: ''
              Intermediary2BankIdType: ''
              Intermediary2BankId: ''
              Intermediary2BankName: ''
              Intermediary2BankAddress1: ''
              Intermediary2BankAddress2: ''
              Intermediary2BankAddress3: ''
              Intermediary1BankIdType: ''
              Intermediary1BankAddress1: ''
              Intermediary1BankAddress2: ''
              Intermediary1BankAddress3: ''
      security:
      - bearerToken: []
      responses:
        '200':
          description: Successful response. The published collection ships no saved response, so the response schema is not
            captured here.
components:
  securitySchemes:
    bearerToken:
      type: http
      scheme: bearer
      description: Bearer token returned by GET /entitlements-get-token-eapi/api/v1/token (Token API) in exchange for the
        appClientId + appClientSecret headers. Tokens are valid for a limited period (API Services Terms 6(c)(iii)).
    appClientId:
      type: apiKey
      in: header
      name: appClientId
      description: Client ID assigned by WAB at enrollment (used with appClientSecret on the token endpoint).
    appClientSecret:
      type: apiKey
      in: header
      name: appClientSecret
      description: Client Secret known only to the client and the WAB API gateway.