E

Eckari · FX Reference Rate

by Eckari

GETBase Sepolia

$0.002

per call · USDC on Base Sepolia

European Central Bank euro foreign exchange reference rate for a pair - the latest published fix or any date in the last 90 days. The ECB publishes EUR/XXX only, so inverse and cross rates are computed by Eckari from the same fix and named in rate_derivation. Reference rates, one per TARGET working day around 16:00 CET, not tradable market rates. Source and reuse conditions travel in meta.attribution. Use when: What is the ECB reference rate for EUR to USD?

Endpoint

GET https://api-staging.eckari.com/v1/fx/reference-rate

10

Calls / 30d

1

Unique payers / 30d

Aug 18

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
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://api-staging.eckari.com/v1/fx/reference-rate", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://api-staging.eckari.com/v1/fx/reference-rate?base=EUR&quote=USD" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "data": {
    "base": "EUR",
    "note": "no ECB fix published for today yet (weekend, TARGET closing day, or before the ~16:00 CET publication); the latest published fix is returned",
    "published_pairs_used": [
      "EUR/USD"
    ],
    "quote": "USD",
    "rate": "1.159300",
    "rate_date": "2026-08-17",
    "rate_derivation": "published",
    "rate_kind": "reference"
  },
  "meta": {
    "capability": "fx.reference_rate",
    "freshness": "near_live",
    "source": "ecb_fx",
    "version": "2.0.0"
  }
}

Payment details

Pay to0x7c0ba1d16322ee426d6508a74b571dd73a5a35da
AssetUSDC · 0x036cbd53842c5426634e7929541ec2318f3dcf7e
NetworksBase Sepolia
Schemesexact

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