# ACH Origination

**Canonical:** https://apis.io/apis/first-horizon/ach-origination/  
**Provider:** First Horizon — https://apis.io/providers/first-horizon/  
**Documentation:** https://developers-test.firsthorizon.com/solutions/ach-tokenization

ACH Origination is one of 5 APIs that [First Horizon](https://apis.io/providers/first-horizon/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include ACH, Payments, Tokenization, NACHA, and United States. The published artifact set on APIs.io includes API documentation and authentication docs.

The ACH Origination API lets First Horizon Treasury Management clients originate ACH transactions directly from their ERP or accounting system via a RESTful interface, paired with an ACH Tokenization Solution that replaces sensitive bank account numbers with tokens to support security and NACHA compliance. Authorized with OAuth 2.0 and available in a sandbox for build-and-test. Documented in HTML on the developer portal; no public OpenAPI specification is downloadable.

## Machine-readable artifacts (3)

- **Documentation** — https://developers-test.firsthorizon.com/solutions/ach-tokenization
- **Authentication** — https://developers-test.firsthorizon.com/apis/v0/oauth
- **DeveloperPortal** — https://developers-test.firsthorizon.com/

## Other First Horizon APIs (4)

- [Move Money Transfer v1](https://apis.io/apis/first-horizon/move-money-transfer-v1/)
- [Account Information](https://apis.io/apis/first-horizon/account-information/)
- [ABA Lookup v1](https://apis.io/apis/first-horizon/aba-lookup-v1/)
- [BIC Lookup v1](https://apis.io/apis/first-horizon/bic-lookup-v1/)

## Tags

ACH, Payments, Tokenization, NACHA, United States

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/first-horizon/ach-origination/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/first-horizon/.