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Fx Rates

by ecb-fx-production.up.railway.app in Markets & finance

x402 APIPassing, checked 5 h ago

Official ECB euro foreign exchange reference rates (about 30 currencies) for the latest business day or any date since 1999, with base-currency cross rates and amount conversion. Returns the ECB reference date used (previous business day if none that day), the raw EUR rates and a source link. Use when you need an official, citable exchange rate (ECB euro reference rate) for invoicing, accounting, VAT/tax returns or reporting, for today or any business day since 1999.

GET
https://ecb-fx-production.up.railway.app/v1/fx/rates
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
216 ms
341 ms slowest 5%
Last check
Passed
5 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 · Watch with other listings

How to call it

GET https://ecb-fx-production.up.railway.app/v1/fx/rates

Each call costs $0.004 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://ecb-fx-production.up.railway.app/v1/fx/rates?base=EUR&symbols=USD%2CGBP%2CDKK

Parameters

ParameterTypeRequiredDescription
amountnumberNoAmount in base currency to convert (default 1)
basestringNoBase currency ISO 4217 (default EUR)
datestringNoYYYY-MM-DD (default latest); weekends/holidays use the previous ECB business day
symbolsstringNoComma-separated target currencies (default all)

Example response

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

Example response, 28 lines
{
  "amount": 1,
  "base": "EUR",
  "converted": {
    "DKK": 7.4608,
    "GBP": 0.8431,
    "USD": 1.0712
  },
  "ecb_eur_rates": {
    "DKK": 7.4608,
    "GBP": 0.8431,
    "USD": 1.0712
  },
  "legal": {
    "privacy": "https://ecb-fx-production.up.railway.app/privacy",
    "terms": "https://ecb-fx-production.up.railway.app/terms"
  },
  "rates": {
    "DKK": 7.4608,
    "GBP": 0.8431,
    "USD": 1.0712
  },
  "reference_date": "2026-10-16",
  "requested_date": "latest",
  "source_link": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html",
  "status": "ok",
  "use_when": "Use when you need an official, citable exchange rate (ECB euro reference rate) for invoicing, accounting, VAT/tax returns or reporting, for today or any business day since 1999."
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://ecb-fx-production.up.railway.app/v1/fx/rates?base=EUR&symbols=USD%2CGBP%2CDKK'

# 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://ecb-fx-production.up.railway.app/v1/fx/rates?base=EUR&symbols=USD%2CGBP%2CDKK' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fecb-fx-production.up.railway.app%2Fv1%2Ffx%2Frates
const res = await pay("https://ecb-fx-production.up.railway.app/v1/fx/rates?base=EUR&symbols=USD%2CGBP%2CDKK");
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://ecb-fx-production.up.railway.app/v1/fx/rates?base=EUR&symbols=USD%2CGBP%2CDKK")
    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
5 h agoPassed402165 ms$0.004
10 h agoPassed402216 ms$0.004
14 h agoPassed402341 ms$0.004