# KeyBank Account Validation API

**Canonical:** https://apis.io/apis/keycorp/account-validation-api/  
**Provider:** KeyCorp — https://apis.io/providers/keycorp/  
**Base URL:** https://partner-api.key.com/accounts/validations/v2  
**Documentation:** https://developer.key.com/docs/actval/v2

KeyBank Account Validation 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 Account Validation, Payments, Fraud Prevention, and United States. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

The Account Validation v2 API verifies account details and ownership before commercial payments and transfers are initiated, matching the supplied account and owner information against the National Shared Database Resource, the financial industry's collaborative source of account status data. It exposes a verifyAccount operation plus a health check, and requires a KeyBank-issued secondaryId in addition to OAuth2 bearer tokens and client certificates. Base host is https://partner-api.key.com with a QV sandbox.

## Machine-readable artifacts (2)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/keycorp/refs/heads/main/openapi/keycorp-account-validation-openapi.yml
- **Documentation** — https://developer.key.com/docs/actval/v2

## 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 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 Check Services API](https://apis.io/apis/keycorp/check-services-api/)
- [KeyBank Webhooks](https://apis.io/apis/keycorp/webhooks/)

## Tags

Account Validation, Payments, Fraud Prevention, United States

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