# KeyBank ACH Inquiry API

**Canonical:** https://apis.io/apis/keycorp/ach-inquiry-api/  
**Provider:** KeyCorp — https://apis.io/providers/keycorp/  
**Base URL:** https://partner-api.key.com/accounts/transactions/v1  
**Documentation:** https://developer.key.com/docs/achinquiry

KeyBank ACH Inquiry API is one of 10 APIs that [KeyCorp](https://apis.io/providers/keycorp/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include ACH, Inquiry, Reporting, and United States. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

The ACH Inquiry API lets commercial clients check the current status and detail of ACH transactions posted to their KeyBank accounts. It provides operations to list ACH transactions, retrieve full detail by PAR number, look up settled items by settlement transaction id, and a health check, supporting reconciliation and exception handling workflows. Secured with OAuth2 bearer tokens and client certificates over https://partner-api.key.com with a QV sandbox environment for testing.

## Machine-readable artifacts (2)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/keycorp/refs/heads/main/openapi/keycorp-ach-inquiry-openapi.yml
- **Documentation** — https://developer.key.com/docs/achinquiry

## Other KeyCorp APIs (9)

- [KeyBank Account Information API](https://apis.io/apis/keycorp/account-information-api/)
- [KeyBank ACH Origination API](https://apis.io/apis/keycorp/ach-origination-api/)
- [KeyBank Wire Transfer API](https://apis.io/apis/keycorp/wire-transfer-api/)
- [KeyBank RTP Send Payment API](https://apis.io/apis/keycorp/rtp-send-payment-api/)
- [KeyBank Account Validation API](https://apis.io/apis/keycorp/account-validation-api/)
- [KeyBank Wire Inquiry API](https://apis.io/apis/keycorp/wire-inquiry-api/)
- [KeyBank RTP Inquiry API](https://apis.io/apis/keycorp/rtp-inquiry-api/)
- [KeyBank Check Services API](https://apis.io/apis/keycorp/check-services-api/)
- [KeyBank Webhooks](https://apis.io/apis/keycorp/webhooks/)

## Tags

ACH, Inquiry, Reporting, United States

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