---
title: "Simulate Card Authorization Requests"
method: POST
path: "/open-api/v3/vcc/simulate/auth"
tags: ["Test"]
---

# Simulate Card Authorization Requests

`POST /open-api/v3/vcc/simulate/auth`

## Request

- Base URL: `https://api-sandbox.interlace.money`
- URL: `https://api-sandbox.interlace.money/open-api/v3/vcc/simulate/auth`
- Auth: API key in header `x-access-token`

Simple endpoint to simulate authorization requests. Only available on `sandbox` environment.

## Request body

- SimulateAuthorizationRequest: simulate authorization request
  - `cardId` string, required: card id
  - `amount` string, required: USD amount
  - `merchantName` string: merchant name
  - `mcc` string: merchant category code

## Response `200`

OK

- SimulateAuthorizationResponse: simulate authorization response
  - `reasonCode` string: reason code
  - `responseCode` string: response code

## Other responses

- `400`: Bad Request

---

[API](https://skmtc.dev/interlace/apis/testing.md) - [All operations](https://skmtc.dev/interlace/apis/testing/llms.txt) - [OpenAPI document](https://skmtc.dev/interlace/apis/testing/revisions/b4539834d093?raw)