Banca d'Italia Exchange Rate API: Official EUR Rates as JSON

The Banca d'Italia publishes the official exchange rates that accounting, tax, and customs rules in Italy reference — published official rates, not moving market prices. This guide shows how to pull them as JSON: via a REST endpoint or the zero-dependency bdi-exchange-rate npm package.

What the Banca d'Italia publishes

• ~163 currencies against the euro — one of the broadest official tables anywhere, produced through the daily ESCB concertation procedure.
• History back to 2016 in our API — a decade of official prints, queryable by exact date or as a time series.
• The bank's own publication date on every response, so a rate is always citable.
• No gaps to trip over — weekends and Italian holidays resolve to the most recent published rates and are flagged explicitly.

The USD/EUR rate anchors the table, but the breadth is the point: where the ECB publishes ~30 reference rates, the Banca d'Italia concertation covers ~163 currencies — and it is the series Italian tax and accounting practice cites for euro conversion.

Why official rates, not market rates

A live mid-market feed answers "what is USD/EUR trading at right now?" — the right tool for checkouts and dashboards. But accountants, auditors, and tax authorities ask a different question: "which rate were you required to use for this date?" That answer comes from the Banca d'Italia's published rates, and it never changes after publication.

Get the latest rates (REST)

curl "https://allratestoday.com/api/v1/central-bank/bdi/latest" \
  -H "Authorization: Bearer YOUR_API_KEY"

The response is the bank's most recent published data — every rate and the publication date. The latest rates are available on every plan, including the free tier (300 requests/month, no credit card).

The npm SDK

npm install bdi-exchange-rate

import { getRate, getLatestRates } from 'bdi-exchange-rate';

// One pair at the official Banca d'Italia rate
const pair = await getRate('USD', 'EUR', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date);

// The bank's full published table
const table = await getLatestRates({ apiKey: 'art_live_...' });
console.log(table.rate_date, table.rates.length);

Zero dependencies, TypeScript types included, and it runs anywhere fetch exists — Node 18+, Bun, Deno, and edge runtimes.

Historical rates for an invoice date

import { getRatesForDate, getHistory } from 'bdi-exchange-rate';

// The official rates for an invoice date — non-publication days return
// the most recent published date, flagged via published_on_requested_date.
const day = await getRatesForDate('2026-06-30', { apiKey: 'art_live_...' });

// Time series for one pair
const series = await getHistory(
  { source: 'USD', target: 'EUR', from: '2026-01-01' },
  { apiKey: 'art_live_...' }
);

Historical dates and time series need a paid plan; the latest rates stay free.

Published vs derived pairs

If the Banca d'Italia does not print a pair directly, the API resolves it from the bank's published rates — an inverse, or a cross rate via EUR — and flags it derived: true with the method used. Official and computed values are never silently mixed, which is exactly the distinction an auditor will ask about.

A decade of the widest euro table

Our archive runs from 2016 — through the euro's slide to parity with the dollar in 2022 and back — across all ~163 quoted currencies. When an Italian audit asks for the official rate on an invoice date, in any currency from the Albanian lek to the Zambian kwacha, the answer is one API call away.

FAQ

Does the Banca d'Italia have an official exchange rate API?

The Banca d'Italia publishes its official rates on its own site, and AllRatesToday serves the same published rates as clean JSON via REST or the bdi-exchange-rate npm package. The latest table is free.

How often do Banca d'Italia rates update?

Once per business day, via the joint ESCB concertation procedure in the early afternoon CET. These are published official rates, not moving market prices — every API response carries the publication date so you can cite it.

Can I get the Banca d'Italia rate for a past date, like an invoice date?

Yes. The /central-bank/bdi/rates-for-date endpoint returns the official rates for any archived date. Non-publication days resolve to the most recent published date and are flagged, so your audit trail stays honest. Historical dates require a paid plan; latest rates are free.