curl -X GET https://checkout.noxpay.io/v2/naas/balance \
  -H "api-key: <key>" \
  -H "X-Timestamp: 2026-05-27T14:30:00Z" \
  -H "X-Correlation-ID: a1b2c3d4-e5f6-4789-abcd-000000000001" \
  -H "X-Signature: <assinatura-dos-headers>"

import requests

# Headers assinados
headers = sign_get_headers(private_key, "a1b2c3d4-e5f6-4789-abcd-000000000001")
headers["api-key"] = "<key>"
response = requests.get(
    "https://checkout.noxpay.io/v2/naas/balance",
    headers=headers,
)
print(response.json())

// Headers assinados
const headers = signGETHeaders("a1b2c3d4-e5f6-4789-abcd-000000000001");
headers["api-key"] = "<key>";
const response = await fetch("https://checkout.noxpay.io/v2/naas/balance", {
  method: "GET",
  headers,
});
const data = await response.json();

{
  "balances": [
    { "currency": "USDT_ERC20", "available": "1250.00" },
    { "currency": "BTC",       "available": "0.04500000" }
  ]
}