USD to EUR Exchange Rate

USD to EUR Exchange Rate API

The rate in the converter above comes from the AllRatesToday API. Your app can call the same endpoint: mid-market USD/EUR, refreshed every 60 seconds, with no spread added. Get a free key (no card).

Get the live USD/EUR rate

curl "https://allratestoday.com/api/v1/rates?source=USD&target=EUR" \
  -H "Authorization: Bearer art_live_your_key"

Response (the rate shown is today's live value):

[
  {
    "rate": …,
    "source": "USD",
    "target": "EUR",
    "time": "<ISO timestamp>"
  }
]

Convert an amount

Add amount and the API does the multiplication:

curl "https://allratestoday.com/api/v1/rates?source=USD&target=EUR&amount=1000" \
  -H "Authorization: Bearer art_live_your_key"

{
  "from": { "currency": "USD", "amount": 1000 },
  "to": { "currency": "EUR", "amount": … },
  "rate": …,
  "source": "mid-market"
}

JavaScript and Python

import { AllRatesToday } from "@allratestoday/sdk";
const api = new AllRatesToday({ apiKey: process.env.ALLRATES_API_KEY });

const [q] = await api.rates({ source: "USD", target: "EUR" });
console.log(`1 USD = ${q.rate} EUR at ${q.time}`);

import requests

r = requests.get(
    "https://allratestoday.com/api/v1/rates",
    params={"source": "USD", "target": "EUR"},
    headers={"Authorization": "Bearer art_live_your_key"},
)
rate = r.json()[0]["rate"]
print(f"1000 USD = {1000 * rate:,.2f} EUR")

Several targets fit in one call (target=EUR,GBP,JPY), which is the cheapest way to price a list in many currencies. SDKs also exist for PHP, Go and Rust.

Historical USD/EUR rates

curl "https://allratestoday.com/api/historical-rates?source=USD&target=EUR&period=30d" \
  -H "Authorization: Bearer art_live_your_key"

Returns a daily series for 1d, 7d, 30d or 1y. History is part of the paid plans; a 1y request counts as 12 calls.

Official European Central Bank rate, no key

For invoices, tax and audit, the published central bank rate is usually what the rules ask for. The latest table needs no key, as long as a visible "Exchange rates by AllRatesToday" link is shown (terms):

curl "https://allratestoday.com/api/open/central-bank/ecb?source=USD&target=EUR"

Full reference: API documentation, including errors, quotas and CSV/XLSX output.

Official EUR Central Bank Rates

The rates above are live mid-market rates. For tax filings, customs valuations, audits, and compliant invoicing you often need the official reference rate published by European Central Bank instead. AllRatesToday also serves European Central Bank published rates as JSON, with history and a free latest-rates tier.

European Central Bank official rates → All central banks →

Tips for Integrating USD/EUR Rates

Here are best practices for using the AllRatesToday exchange rate API in your application:

• Cache responses locally: Rates update every 60 seconds. Cache the response and refresh on a timer to stay within your request quota and reduce latency.
• Use an SDK: Official packages for JavaScript, Python, PHP, Go and Rust handle authentication and parsing.
• Display the timestamp: Always show the rate timestamp from the API response so users know how fresh the data is.
• Handle errors gracefully: If the API is temporarily unavailable, fall back to the last cached rate and display a notice to users.
• Batch currency requests: Request multiple target currencies in a single call (e.g. target=USD,GBP,EUR) to reduce API usage.
• Use the history endpoint for charts: /api/historical-rates (paid plans) returns 1d, 7d, 30d and 1y daily series for trend charts.

Understanding Mid-Market Rates

The mid-market rate is the midpoint between the buy and sell prices of two currencies on the global markets. It represents the fairest exchange rate available, with no markup applied.

For example, if the mid-market rate is 1 USD = 100 EUR, a financial service might offer 1 USD = 97 EUR, keeping the 3% difference as their margin.

The AllRatesToday API returns the mid-market rate with no markup, so your application can show the fair rate and, if it needs to, add its own margin openly on top.

API Features

The AllRatesToday exchange rate API provides the following endpoints and capabilities:

• Live Rates: GET /api/v1/rates?source=USD&target=EUR returns the current mid-market rate, updated every 60 seconds.
• Multi-Currency: Request multiple targets in one call (e.g. target=EUR,USD,GBP) to minimize API requests.
• Historical Data (paid plans): GET /api/historical-rates?source=USD&target=EUR&period=7d returns a daily series for 1d, 7d, 30d or 1y.
• Currency Conversion: Pass an amount parameter to get the converted value directly, saving you from doing the math client-side.

All endpoints return JSON responses with rate, timestamp, source, and target fields. Authentication is via an API key passed in the Authorization header.