# Wintrust Treasury Management API Banking (SFTP)

**Canonical:** https://apis.io/apis/wintrust-financial/wintrust-treasury-api-banking/  
**Provider:** Wintrust Financial — https://apis.io/providers/wintrust-financial/  
**Documentation:** https://www.wintrust.com/business-solutions/mid-market/banking/treasury-management.html

Wintrust Treasury Management API Banking (SFTP) is one of 2 APIs that [Wintrust Financial](https://apis.io/providers/wintrust-financial/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Treasury Management, Commercial Banking, Payments, File Transfer, and United States. The published artifact set on APIs.io includes API documentation.

Wintrust's commercial "API banking" for treasury clients. Rather than a documented REST API, Wintrust connects business customers directly to its secure file transfer protocol (SFTP) for account balance and activity reporting, payment file exchange (Positive Pay, ACH/NACHA, domestic and international wires, EDI, lockbox) and data-format translation (CSV to NACHA, EDI 820, TXT, BAI2). Delivered through the i-BusinessBanking treasury platform; no public OpenAPI specification, sandbox or self-serve developer portal is published — access is arranged through Treasury Management onboarding.

## Machine-readable artifacts (4)

- **Documentation** — https://www.wintrust.com/financial-education/2021/03/in-the-vault-with-treasury-management-focus-on-banking-technology.html
- **Documentation** — https://www.wintrustbank.com/commercial/resources/treasury-management/payables.html
- **Documentation** — https://www.wintrustbank.com/commercial/resources/treasury-management/receivables.html
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/wintrust-financial/refs/heads/main/apis.yml

## Other Wintrust Financial APIs (1)

- [Wintrust Open Banking Data Access (Plaid, aggregator-mediated)](https://apis.io/apis/wintrust-financial/wintrust-open-banking-aggregator-access/)

## Tags

Treasury Management, Commercial Banking, Payments, File Transfer, United States

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