ToolVet
78trust / 100

Fx Rates

by Official Macro & FX Data in Markets & finance

x402 APIPassing, checked 4 h ago

Use when an agent needs an official exchange rate to convert prices, invoices or portfolios: ECB euro reference rates for ~30 currencies (USD, GBP, CHF, JPY, CNY …), latest or for any day since 1999, with any base currency (cross rates computed from the ECB fix). Returns the exact rate date. Source named in every answer. Bad input: HTTP 400 before payment; unknown currency or outage is not charged.

GET
https://x402-apis.pages.dev/v1/fx-rates
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
65 ms
715 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

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://x402-apis.pages.dev/v1/fx-rates

Each call costs $0.002 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://x402-apis.pages.dev/v1/fx-rates?base=USD&symbols=EUR%2CCHF%2CGBP

Parameters

ParameterTypeRequiredDescription
basestringNoBase currency, 3 letters, default EUR. Any ECB reference currency.
datestringNoDay as YYYY-MM-DD (1999-01-04 or later). Default: latest. Weekends/holidays return the previous ECB fix.
symbolsstringNoComma-separated target currencies, e.g. USD,CHF,GBP. Default: all.

Example response

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

{
  "attribution": "Source: European Central Bank (ECB Data Portal, data-api.ecb.europa.eu). Reuse permitted with source acknowledged.",
  "base": "USD",
  "date": "2026-10-13",
  "rates": {
    "CHF": 0.82418,
    "EUR": 0.885113,
    "GBP": 0.761234
  },
  "retrievedAt": "2026-10-13T15:10:00.000Z",
  "source": "European Central Bank – euro foreign exchange reference rates"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-apis.pages.dev/v1/fx-rates?base=USD&symbols=EUR%2CCHF%2CGBP'

# 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://x402-apis.pages.dev/v1/fx-rates?base=USD&symbols=EUR%2CCHF%2CGBP' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-apis.pages.dev%2Fv1%2Ffx-rates
const res = await pay("https://x402-apis.pages.dev/v1/fx-rates?base=USD&symbols=EUR%2CCHF%2CGBP");
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://x402-apis.pages.dev/v1/fx-rates?base=USD&symbols=EUR%2CCHF%2CGBP")
    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
4 h agoPassed402595 ms$0.002
8 h agoPassed402369 ms$0.002
12 h agoPassed402715 ms$0.002
17 h agoPassed40254 ms$0.002
21 h agoPassed40243 ms$0.002
Show 8 older checks
25 h agoPassed40251 ms$0.002
29 h agoPassed402526 ms$0.002
33 h agoPassed40256 ms$0.002
37 h agoPassed40265 ms$0.002
41 h agoPassed40257 ms$0.002
45 h agoPassed40285 ms$0.002
2 days agoPassed40268 ms$0.002
2 days agoPassed40228 ms$0.002