Exchange Rates

Last 30 days

Uptime

100%

Response time

183 ms typical, 183 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://agent402.tools/api/exchange-rates?currencies=usd%2Ceur%2Ceth%2Cxau"

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fexchange-rates
const res = await pay("https://agent402.tools/api/exchange-rates?currencies=usd%2Ceur%2Ceth%2Cxau");
console.log(await res.json());

Example input

{
  "currencies": "usd,eur,eth,xau"
}

Example output

{
  "base": "BTC",
  "cached": false,
  "count": 4,
  "fetchedAt": "2026-08-22T13:20:00.000Z",
  "rates": [
    {
      "code": "usd",
      "name": "US Dollar",
      "perBtc": 77018,
      "type": "fiat",
      "unit": "$"
    },
    {
      "code": "eur",
      "name": "Euro",
      "perBtc": 65600.2,
      "type": "fiat",
      "unit": "€"
    },
    {
      "code": "eth",
      "name": "Ether",
      "perBtc": 31.813,
      "type": "crypto",
      "unit": "ETH"
    },
    {
      "code": "xau",
      "name": "Gold - Troy Ounce",
      "perBtc": 22.91,
      "type": "commodity",
      "unit": "XAU"
    }
  ],
  "source": "coingecko"
}

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