Western Alliance Bancorporation
Western Alliance Bancorporation (NYSE: WAL) is the parent of Western Alliance Bank, a top-performing US commercial bank. Its WAB API Developer Portal (developer.westernalliancebank.com, built on Salesforce Experience Cloud with MuleSoft Anypoint API Community Manager) publishes treasury-management APIs on the api-connect.westernalliancebank.com gateway in six families - Informational (balances, intraday, prior-day and date-range transactions, statements, check images, stop payments), Transactional (book transfer, wires, intrabank transfer, ACH beta), Utility (token), Embedded Finance, Digital Assets (TassatPay beta) and Corporate Trust. Access requires Treasury Management enrollment; the bank issues a Client ID / Client Secret exchanged for a time-limited bearer token, and the intrabank transfer surface pushes ISO 20022-coded status webhooks.
Western Alliance Bancorporation publishes 26 APIs on the APIs.io network, including Western Alliance Bank Check Image API, Western Alliance Bank Stop Payments API, Western Alliance Bank Book Transfer API, and 23 more. Tagged areas include Banking, Financial Services, Treasury Management, Payments, and Account.
The Western Alliance Bancorporation catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Western Alliance Bancorporation’s developer surface includes signup flow, API reference, getting-started guide, documentation, FAQ, support, engineering blog, and 51 more developer resources.
Kin Score
APIs 26
Individual APIs this provider publishes, each with its own machine-readable definition.
Western Alliance Bank Check Image API
Retrieves the image of a paid check by account, check date, check number, trace number and amount. Family: Informational APIs on the WAB API Developer Portal; 3 operations captu...
Western Alliance Bank Stop Payments API
Places a stop-payment order on a check (or range) and looks up existing stop payments on an account. Family: Informational APIs on the WAB API Developer Portal; 4 operations cap...
Western Alliance Bank Book Transfer API
Moves funds between two Western Alliance accounts held by the same client (book transfer). Family: Transactional APIs on the WAB API Developer Portal; 2 operations captured.
Western Alliance Bank Intrabank Transfer API
Initiates an intra-bank transfer between two Western Alliance Bank accounts and searches intra-bank transfers as originator or beneficiary. The transfer returns a Payment Messag...
Western Alliance Bank API (Treasury Management)
Western Alliance Bank's commercial open-banking API lets approved business clients interact directly with WAB systems to access balance and transaction information, retrieve che...
Western Alliance Bancorporation ACH Request API
The ACH Request API from Western Alliance Bancorporation — 1 operation(s) for ach request.
Western Alliance Bancorporation Balance API
The Balance API from Western Alliance Bancorporation — 1 operation(s) for balance.
Western Alliance Bancorporation Client Data API
The Client Data API from Western Alliance Bancorporation — 1 operation(s) for client data.
Western Alliance Bancorporation Date Range Transaction History API
The Date Range Transaction History API from Western Alliance Bancorporation — 1 operation(s) for date range transaction history.
Western Alliance Bancorporation Deposite API
The Deposite API from Western Alliance Bancorporation — 2 operation(s) for deposite.
Western Alliance Bancorporation Get Balance API
The Get Balance API from Western Alliance Bancorporation — 2 operation(s) for get balance.
Western Alliance Bancorporation Get Bank Statement API
The Get Bank Statement API API from Western Alliance Bancorporation — 1 operation(s) for get bank statement api.
Western Alliance Bancorporation Get Tassat Login Token API
The Get Tassat Login Token API from Western Alliance Bancorporation — 1 operation(s) for get tassat login token.
Western Alliance Bancorporation Get Token API
The Get Token API from Western Alliance Bancorporation — 1 operation(s) for get token.
Western Alliance Bancorporation Get User Token API
The Get User Token API from Western Alliance Bancorporation — 1 operation(s) for get user token.
Western Alliance Bancorporation Get WAB Token API
The Get WAB Token API from Western Alliance Bancorporation — 1 operation(s) for get wab token.
Western Alliance Bancorporation Health Check API
The Health Check API from Western Alliance Bancorporation — 12 operation(s) for health check.
Western Alliance Bancorporation Intrabank Search API
On-demand lookup of intra-bank transfers; a fallback when the webhook is missed, not a replacement for it.
Western Alliance Bancorporation Redeem API
The Redeem API from Western Alliance Bancorporation — 2 operation(s) for redeem.
Western Alliance Bancorporation Send API
The Send API from Western Alliance Bancorporation — 2 operation(s) for send.
Western Alliance Bancorporation Transaction History Intraday API
The Transaction History Intraday API from Western Alliance Bancorporation — 2 operation(s) for transaction history intraday.
Western Alliance Bancorporation Transaction History Priorday API
The Transaction History Priorday API from Western Alliance Bancorporation — 2 operation(s) for transaction history priorday.
Western Alliance Bancorporation Transactions API
The Transactions API from Western Alliance Bancorporation — 1 operation(s) for transactions.
Western Alliance Bancorporation Wallet balance API
The Wallet balance API from Western Alliance Bancorporation — 1 operation(s) for wallet balance.
Western Alliance Bancorporation Wallet Names API
The Wallet Names API from Western Alliance Bancorporation — 1 operation(s) for wallet names.
Western Alliance Bancorporation Wires Request API
The Wires Request API API from Western Alliance Bancorporation — 1 operation(s) for wires request api.
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Postman Collections 15
Ready-to-run Postman collections for exercising this provider's APIs.
ACH EAPI | Beta
POSTMANAll Account Balance API
POSTMANAll Account Intraday API
POSTMANAll Account Priorday API
POSTMANBank Statement API
POSTMANBook Transfer API
POSTMANCheck image API
POSTMANDate Range Transactions API
POSTMANSingle Account Balance API
POSTMANSingle Account Intraday API
POSTMANSingle Account Priorday API
POSTMANStop Payments API
POSTMANTassatPay EAPI | Beta
POSTMANToken API
POSTMANWires Request API
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Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Western Alliance Bancorporation Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Event Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 6
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
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Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 19
Properties that don't map to a standard resource type
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Source (apis.yml)
Work with this as data
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