curl --request POST \
  --url https://api.pay.flipeet.io/api/v1/sandbox/balance/top-up \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "asset": "usdc",
  "amount": 5000
}
'

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({asset: 'usdc', amount: 5000})
};

fetch('https://api.pay.flipeet.io/api/v1/sandbox/balance/top-up', 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/balance/top-up"

payload = {
    "asset": "usdc",
    "amount": 5000
}
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": [
    {
      "currency": "cngn",
      "available": 0
    },
    {
      "currency": "usdc",
      "available": 15000
    },
    {
      "currency": "usdt",
      "available": 10000
    }
  ]
}

{
  "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": "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"
}