# Western Alliance Bank API (Treasury Management)

**Canonical:** https://apis.io/apis/western-alliance-bancorporation/wab-treasury-management-api/  
**Provider:** Western Alliance Bancorporation — https://apis.io/providers/western-alliance-bancorporation/  
**Documentation:** https://developer.westernalliancebank.com/s/

Western Alliance Bank API (Treasury Management) is one of 17 APIs that [Western Alliance Bancorporation](https://apis.io/providers/western-alliance-bancorporation/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Treasury Management, Open Banking, and Payments. The published artifact set on APIs.io includes API documentation.

Western Alliance Bank's commercial open-banking API lets approved business clients interact directly with WAB systems to access balance and transaction information, retrieve check images, initiate funds transfers, and place stop payments. Documented publicly as an open-banking capability; API specifications and endpoints are gated behind the WAB Developer Hub and issued credentials.

## Machine-readable artifacts (3)

- **Documentation** — https://developer.westernalliancebank.com/s/
- **Documentation** — https://www.westernalliancebancorporation.com/commercial/treasury-management
- **TermsOfService** — https://www.westernalliancebancorporation.com/sites/default/files/2025-05/api-services-terms-conditions.pdf

## Other Western Alliance Bancorporation APIs (12)

- [Western Alliance Bank Token API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-token-api/)
- [Western Alliance Bank All Account Balance API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-all-account-balance-api/)
- [Western Alliance Bank Single Account Balance API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-single-account-balance-api/)
- [Western Alliance Bank All Account Intraday API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-all-account-intraday-api/)
- [Western Alliance Bank Single Account Intraday API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-single-account-intraday-api/)
- [Western Alliance Bank All Account Priorday API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-all-account-priorday-api/)
- [Western Alliance Bank Single Account Priorday API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-single-account-priorday-api/)
- [Western Alliance Bank Date Range Transactions API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-date-range-transactions-api/)
- [Western Alliance Bank Bank Statement API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-bank-statement-api/)
- [Western Alliance Bank Check Image API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-check-image-api/)
- [Western Alliance Bank Stop Payments API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-stop-payments-api/)
- [Western Alliance Bank Book Transfer API](https://apis.io/apis/western-alliance-bancorporation/western-alliance-bancorporation-book-transfer-api/)

## Tags

Treasury Management, Open Banking, Payments

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/western-alliance-bancorporation/wab-treasury-management-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/western-alliance-bancorporation/.