Up · Crypto Price

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://currency-api-production-4a8d.up.railway.app/crypto/price", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "coin": "bitcoin",
    "vs_currency": "usd"
  }),
});
const data = await res.json();

curl -X POST \
  "https://currency-api-production-4a8d.up.railway.app/crypto/price" \
  -H "Content-Type: application/json" \
  -d '{"coin":"bitcoin","vs_currency":"usd"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "cached": false,
  "change_24h_pct": 1.85,
  "coin_id": "bitcoin",
  "market_cap": 1327000000000,
  "price": 67250,
  "query": "bitcoin",
  "source": "CoinGecko",
  "vs_currency": "usd"
}