const response = await fetch("https://autopay.shakesco.com/codes", {
  method: "GET",
  headers: {
    Authorization: `Bearer ${API_KEY}`,
    "Content-Type": "application/json",
  },
});

const { currency_codes } = await response.json();
console.log(currency_codes);

{
  "id": 1,
  "currency_codes": [
    "USD",
    "EUR",
    "GBP",
    "KES",
    "INR",
    "JPY",
    "BTC",
    "ETH",
    "MATIC",
    "USDT",
    "USDC",
    "DAI",
    "..."
  ]
}