post https://api-sandbox.pismolabs.io/networktransactions/v1/authorizations
You can use this endpoint to simulate a real-world authorization from the network in the sandbox environment. This simulation does not go through all the card network services as it would in production, but it does check for card status and balance. The call gives you a chance to see how Pismo might respond to a network authorization. The fields returned can be used to cancel or confirm the request with this endpoint.
The simulator can be used to generate a network authorization event that you can receive and view , which can occur, in production, when Pismo cancels or confirms an authorization.
For more information, see the Simulate authorizations guide.