# KeyBank Check Services API

**Canonical:** https://apis.io/apis/keycorp/check-services-api/  
**Provider:** KeyCorp — https://apis.io/providers/keycorp/  
**Base URL:** https://partner-api.key.com/commercial/checks/v1  
**Documentation:** https://developer.key.com/docs/check-services

KeyBank Check Services 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 Check Services, Commercial Banking, Payments, and United States. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

The Check Services API manages stop payments and check image retrieval for commercial KeyBank accounts. It exposes operations to place a stop payment, list and retrieve check images, and a health check, letting treasury and accounts-payable teams control and audit paper and electronic check activity programmatically. Authenticated with OAuth2 bearer tokens and mutual TLS client certificates over https://partner-api.key.com, with a QV sandbox environment for integration testing.

## Machine-readable artifacts (2)

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

## 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 ACH Inquiry API](https://apis.io/apis/keycorp/ach-inquiry-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 Webhooks](https://apis.io/apis/keycorp/webhooks/)

## Tags

Check Services, Commercial Banking, Payments, United States

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