KeyBank ACH Inquiry API
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.
KeyBank ACH Inquiry API is one of 10 APIs that KeyCorp publishes on the 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.
This API exposes 4 operations across 4 paths, organized into 2 resource areas, and defines 17 schemas. It is described by OpenAPI 3.1.0, at version 2.1.2.
Requests are made against 2 base URLs: https://partner-api-qv.key.com, https://partner-api.key.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
KeyBank ACH Inquiry API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (JWT) (bearerAuth).
By default, every request must be authenticated.
bearerAuth— Access token supplied in the Authorization header using the Bearer scheme (e.g. Authorization: Bearer {token}).
Paths & Operations 4
Across 4 paths, the API surfaces 4 operations — 3 GET, 1 POST. They span 2 resource areas: HealthCheck, ACH Transactions. Each is listed below with its method, path, parameters, and response codes.
Verify you can connect to the API service.
ACH Inquiry functions to list and retrieve ACH transaction details
Schemas 17
The contract defines 17 schemas that model the data the API accepts and returns. The most detailed are AchDetailTransaction (29 properties), AchListTransaction (22 properties), AchSettledTransaction (19 properties), Exception (6 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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