Western Alliance Bank Intrabank Transfer API
Initiates an intra-bank transfer between two Western Alliance Bank accounts and searchesintra-bank transfers as originator or beneficiary. The transfer returns a Payment MessageReference that is the universal identifier for the payment across the Intrabank Search,Intraday, Prior Day and Date Range APIs and the webhook. Family: Transactional APIs on the WAB API Developer Portal; 2 operations captured.
Western Alliance Bank Intrabank Transfer API is one of 26 APIs that Western Alliance Bancorporation publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Banking, Financial Services, Treasury Management, Payments, and Transfers. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.
This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version v1-v2.
Requests are made against 2 base URLs: https://api-connect.westernalliancebank.com, https://api-connect.westernalliancebanktest.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Western Alliance Bank Intrabank Transfer API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (bearerToken).
By default, every request must be authenticated.
bearerToken— Bearer token from GET /entitlements-get-token-eapi/api/v1/token (Token API); the guide labels it "IBT Token". Tokens are valid for a limited period (API Servic…
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.
Initiate an intra-bank transfer. "Accepted" means the request was formatted correctly, not that funds have posted.
Schemas 3
The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are IntraBankTransferRequest (9 properties), IntraBankTransferResponse (5 properties), ErrorEnvelope (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Western Alliance Bancorporation 12
Other APIs Western Alliance Bancorporation publishes across the network.
This is an independent, third-party profile of Western Alliance Bank Intrabank Transfer API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.