Free tools / ECB exchange rate lookup

ECB euro exchange rates for any date

Look up the euro foreign-exchange reference rates published by the European Central Bank for any date since 1999, converted to any base currency, with an optional amount.

The result appears here as JSON.

One free check per tool and IP address per day. Nothing is stored.

What you get

Reference rates for the chosen date (last working day on weekends)
Optional converted amount
The source and the rate date

Not returned: Tradable quotes or advice: these are once-a-day reference rates.

Use it from code or an agent

curl "https://api.ambolt.dev/v1/fx-rate-ecb?base=EUR&symbols=%5B%22DKK%22%2C%22USD%22%5D&free=1"

Same tool as an MCP tool (fx_rate_ecb, free at 30 requests a minute), as a pay-per-call endpoint ($0.003 a call in USDC) and as an Apify Actor. Reference · Docs

Questions

How often are rates published?

Once per working day, around 16:00 Central European Time.

What about weekends?

You get the last working day before the date.

Can I get year-end rates?

Yes: enter 31 December of the year.