curl --request POST \
  --url https://api.pay.flipeet.io/api/v1/sandbox/simulate \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "reference": "inv_2201",
  "outcome": "success"
}
'

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({reference: 'inv_2201', outcome: 'success'})
};

fetch('https://api.pay.flipeet.io/api/v1/sandbox/simulate', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.pay.flipeet.io/api/v1/sandbox/simulate"

payload = {
    "reference": "inv_2201",
    "outcome": "success"
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "message": "Successful",
  "status": "success",
  "statusCode": 200,
  "data": {
    "id": "6f1c2b9e-3a4d-4e8f-9b0a-1c2d3e4f5a6b",
    "type": "crypto",
    "reference": "inv_2201",
    "status": "completed",
    "currency": "usdc",
    "network": "base",
    "amount": 100,
    "expectedAmount": 100,
    "feeAmount": 0.6,
    "address": "0x3c5b0e8d1f6a4b2c9e7d0a1b2c3d4e5f60718293",
    "txHash": "0x77aa3f0c9b1e2d4f6a8c0e1b3d5f7a9c1e3b5d7f9a1c3e5b7d9f1a3c5e7b19be",
    "metadata": {
      "customerId": "cus_77"
    },
    "livemode": false,
    "createdAt": "2026-11-04T10:21:09.000Z",
    "updatedAt": "2026-11-04T10:21:09.000Z"
  }
}

{
  "message": "Amount must be a positive number",
  "status": "error",
  "statusCode": 400,
  "code": "invalid_request",
  "details": {
    "errors": [
      "Amount must be a positive number"
    ]
  },
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Invalid or inactive API key",
  "status": "error",
  "statusCode": 401,
  "code": "authentication_failed",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Sandbox endpoints need a sandbox key (fpay_test_…)",
  "status": "error",
  "statusCode": 403,
  "code": "permission_denied",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Transaction not found",
  "status": "error",
  "statusCode": 404,
  "code": "not_found",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Reference payout_5510 already exists",
  "status": "error",
  "statusCode": 409,
  "code": "conflict",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Too many requests. Slow down and try again shortly.",
  "status": "error",
  "statusCode": 429,
  "code": "rate_limited",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}

{
  "message": "Internal server error",
  "status": "error",
  "statusCode": 500,
  "code": "internal_error",
  "details": null,
  "requestId": "req_5f0c2a9b8d7e4c1f9a3b6d2e1c0f7a8b",
  "timestamp": "2026-11-04T10:00:00.000Z"
}