ToolVet
78trust / 100

Fx Rate

by FX rate (Chainlink on-chain) in Markets & finance

x402 APIPassing, checked 20 min ago

Currency exchange rate and conversion, read on chain from Chainlink FX feeds on Ethereum: pass ?from=EUR&to=JPY&amount=100. EUR, GBP, JPY, CHF, AUD, CAD, CNY, KRW, SGD, TRY, BRL, NZD, PHP, USD, plus gold (XAU) and silver (XAG). Cross rates come from two USD feeds, and each leg carries its feed address, round and age. A retired or unknown feed is refused before any charge.

GET
https://apexfaucet.xyz/api/x402/fx-rate
Price
$0.001
per call in USDC
Uptime
100%
last 30 days
Response time
271 ms
435 ms slowest 5%
Last check
Passed
20 min ago, next in 9 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://apexfaucet.xyz/api/x402/fx-rate

Each call costs $0.001 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://apexfaucet.xyz/api/x402/fx-rate?amount=100&from=EUR&to=USD

Parameters

ParameterTypeRequiredDescription
amountstringNoOptional amount to convert (default 1).
fromstringYes3-letter code: EUR, GBP, JPY, CHF, AUD, CAD, CNY, KRW, SGD, TRY, BRL, NZD, PHP, USD, or XAU / XAG for gold and silver.
tostringNoTarget code (default USD).

Example response

The provider's example. We can't check it without paying.

{
  "data": {
    "amount": 100,
    "block": 26184801,
    "blockTime": "2026-10-13T16:35:35.000Z",
    "converted": 112.01,
    "from": "EUR",
    "legs": [
      {
        "ageSeconds": 11503,
        "feed": "0xb49f677943BC038e9857d61E7d053CaA2C1734C1",
        "pair": "EUR/USD",
        "roundId": "92233720368547762553",
        "updatedAt": "2026-10-13T13:23:59.000Z",
        "usd": 1.1201
      }
    ],
    "method": "one Chainlink feed on Ethereum",
    "ok": true,
    "rate": 1.1201,
    "to": "USD"
  },
  "ok": true,
  "paid": 0.001
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://apexfaucet.xyz/api/x402/fx-rate?amount=100&from=EUR&to=USD'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://apexfaucet.xyz/api/x402/fx-rate?amount=100&from=EUR&to=USD' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapexfaucet.xyz%2Fapi%2Fx402%2Ffx-rate
const res = await pay("https://apexfaucet.xyz/api/x402/fx-rate?amount=100&from=EUR&to=USD");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://apexfaucet.xyz/api/x402/fx-rate?amount=100&from=EUR&to=USD")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
20 min agoPassed402180 ms$0.001
5 h agoPassed402271 ms$0.001
9 h agoPassed402366 ms$0.001
13 h agoPassed402435 ms$0.001
17 h agoPassed402279 ms$0.001
Show 3 older checks
21 h agoPassed402459 ms$0.001
25 h agoPassed402162 ms$0.001
29 h agoPassed402248 ms$0.001