KeyBank RTP Send Payment API
The RTP Send Payment API initiates instant, irrevocable payments over The Clearing House Real-Time Payments (RTP) network from commercial KeyBank accounts. Sharing KeyBank's combined RTP and Wire Payments service, it supports payment initiation, pre-submission validation, and RTP participant directory lookups by routing number so senders can confirm reachability before dispatch. Secured with OAuth2 bearer tokens and client certificates over https://partner-api.key.com, with a QV sandbox for integration testing.
KeyBank RTP Send Payment API is one of 10 APIs that KeyCorp publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Payments, Real-Time Payments, Commercial Banking, and United States. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.
This API exposes 5 operations across 5 paths, organized into 4 resource areas, and defines 13 schemas. It is described by OpenAPI 3.0.2, at version 1.3.3.
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 RTP Send Payment API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (bearerAuth).
Paths & Operations 5
Across 5 paths, the API surfaces 5 operations — 3 GET, 2 POST. They span 4 resource areas: HealthCheck, Initiate, Participant, Validate. Each is listed below with its method, path, parameters, and response codes.
Verify you can connect to the API service. A bearer token is required.
Send a payment.
Look up a RTP participating banks.
Perform validation checks for a payment transaction.
Schemas 13
The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are paymentTransactionRequestV1 (21 properties), paymentTransactionResponse (13 properties), serviceErrorData (10 properties), party (7 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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