Swiss National Bank Exchange Rate API

Official Swiss National Bank (Switzerland) daily exchange rates as JSON: 26 currencies, history back to 1914. The published CHF rates required for tax, audits, and compliant invoicing.

Swiss National Bank official daily exchange rates as JSON: 26 currencies against the CHF, history back to 1914. Latest table on every plan. Get your API key.

About Swiss National Bank

The Swiss National Bank publishes official franc exchange rates through its data portal. The SNB publishes monthly averages (no daily official series exists), with history reaching back to 1914 — one of the longest official exchange rate records anywhere.

• Official website: www.snb.ch
• Official rate publication: Exchange rates — SNB data portal

Quick start

One request for the pair you need — EUR to CHF at the official Swiss National Bank rate:

curl "https://allratestoday.com/api/v1/central-bank/snb/latest?source=EUR&target=CHF" \
  -H "Authorization: Bearer art_live_your_key"

Or the bank's full published table:

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

On paid plans, any historical date or a daily time series:

curl "https://allratestoday.com/api/v1/central-bank/snb/history?source=EUR&target=CHF&from=2025-01-01" \
  -H "Authorization: Bearer art_live_your_key"

Latest published rates (2026-07-31)

The most recent table as published by Swiss National Bank — exactly what the /latest endpoint returns right now. Values are CHF per 1 unit of each currency:

Base	Quote	Type	Rate
ARS	CHF	monthly_average	0.00055
AUD	CHF	monthly_average	0.56415
BRL	CHF	monthly_average	0.1582971
CAD	CHF	monthly_average	0.57392
CNY	CHF	monthly_average	0.1195218
CZK	CHF	monthly_average	0.0382249
DKK	CHF	monthly_average	0.123796
EUR	CHF	monthly_average	0.92538
GBP	CHF	monthly_average	1.08371
HKD	CHF	monthly_average	0.1032988
HUF	CHF	monthly_average	0.0025763
JPY	CHF	monthly_average	0.004987500000000001
KRW	CHF	monthly_average	0.0005437
MXN	CHF	monthly_average	0.0463868
MYR	CHF	monthly_average	0.19841989999999998
NOK	CHF	monthly_average	0.0834064
NZD	CHF	monthly_average	0.46811
PLN	CHF	monthly_average	0.2143088
RUB	CHF	monthly_average	0.0104
SEK	CHF	monthly_average	0.08374480000000001
SGD	CHF	monthly_average	0.62733
THB	CHF	monthly_average	0.0241791
TRY	CHF	monthly_average	0.017201
USD	CHF	monthly_average	0.81002
XDR	CHF	monthly_average	1.1004
ZAR	CHF	monthly_average	0.04922

Node.js / TypeScript client

A dedicated zero-dependency npm package wraps these endpoints — snb-exchange-rate:

npm install snb-exchange-rate

import { getRate } from 'snb-exchange-rate';

const pair = await getRate('EUR', 'CHF', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date);

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

Why use the official Swiss National Bank rate?

Live market rates move continuously, but tax filings, customs declarations, audits, and statutory accounting in Switzerland and beyond typically require the official rate published by Swiss National Bank for a given date — a fixed, citable number that never changes after publication. This API serves those published tables with the bank's own rate_date on every response; weekends and holidays return the most recent published date, which is the rate compliance rules require you to apply.

Pairs the bank doesn't print directly are resolved from its table (inverse or cross via CHF) and explicitly flagged "derived": true — so what the bank printed and what was computed are never confused.

Endpoints

• GET /api/v1/central-bank/snb/latest — latest table or single pair (all plans)
• GET /api/v1/central-bank/snb/{YYYY-MM-DD} — the table for any date (paid plans)
• GET /api/v1/central-bank/snb/history — daily time series, up to 5,000 rows (paid plans)
• GET /api/v1/central-bank/snb/availability — publication calendar: the dates the bank actually published (all plans)

Full parameter reference in the API documentation. Every request counts toward your plan's monthly quota — rates change once per business day, so caching a day's table locally makes a small quota go far.

Frequently asked questions

Is there an API for Swiss National Bank exchange rates?

Yes — this one. Official daily CHF rates as clean JSON, latest table on every plan including free.

How often are the rates updated?

Swiss National Bank publishes undefined; the API ingests each new table shortly after publication (latest: 2026-07-31).

Are these the official rates?

Yes — ingested from Swiss National Bank's own published data, served unmodified with the bank's publication date. Anything computed rather than published is flagged derived.

Other central banks

All covered central banksCoverage, endpoints, and plans US Federal Reserve (H.10)United States — official USD rates Bank of EnglandUnited Kingdom — official GBP rates People's Bank of China (CFETS)China — official CNY rates Reserve Bank of AustraliaAustralia — official AUD rates Bank of RussiaRussia — official RUB rates Central Bank of TürkiyeTürkiye — official TRY rates Banco Central do Brasil (PTAX)Brazil — official BRL rates Bank IndonesiaIndonesia — official IDR rates Reserve Bank of IndiaIndia — official INR rates Bank of CanadaCanada — official CAD rates Bank Negara MalaysiaMalaysia — official MYR rates Central Bank of Sri LankaSri Lanka — official LKR rates Czech National BankCzech Republic — official CZK rates European Central BankEurozone — official EUR rates Narodowy Bank PolskiPoland — official PLN rates Norges BankNorway — official NOK rates Sveriges RiksbankSweden — official SEK rates Central Bank of NigeriaNigeria — official NGN rates Central Bank of KuwaitKuwait — official KWD rates Central Bank of BahrainBahrain — official BHD rates Central Bank of AzerbaijanAzerbaijan — official AZN rates Central Bank of Bosnia and HerzegovinaBosnia and Herzegovina — official BAM rates Bulgarian National BankBulgaria — official EUR rates Central Reserve Bank of PeruPeru — official PEN rates Bank of JapanJapan — official JPY rates Hong Kong Monetary AuthorityHong Kong — official HKD rates Bank of IsraelIsrael — official ILS rates Central Bank of ArgentinaArgentina — official ARS rates South African Reserve BankSouth Africa — official ZAR rates Reserve Bank of New ZealandNew Zealand — official NZD rates