cronservices
Sign inStart free

Daily exchange rates to Slack or your store

Fetch the European Central Bank's reference rates every working day with the free Frankfurter API, and post them to chat or update your store's prices. No API key.

Example: EUR/USD in Slack every afternoon

The ECB publishes around 16:00 Central European Time on working days:

json
{
  "name": "EUR/USD to #finance",
  "cron": { "expression": "15 16 * * 1-5", "time_zone": "Europe/Berlin" },
  "nodes": [
    { "id": "rate", "frankfurter_latest": { "from": "EUR", "to": "USD" } },
    { "id": "post", "slack_send_message": {
        "webhook_url": "https://hooks.slack.com/services/T000/B000/XXXX",
        "text": "ECB reference rate for {{ $.date }}: 1 EUR = {{ $.rates.USD }} USD" } }
  ]
}

Example: several currencies into your store

For more than one currency, call Frankfurter with a request step:

json
{
  "name": "Daily exchange rates",
  "cron": { "expression": "30 16 * * 1-5", "time_zone": "Europe/Berlin" },
  "nodes": [
    { "id": "rates", "request": { "method": "GET", "endpoint": "https://api.frankfurter.app/latest?from=USD&to=EUR,GBP,CAD" } },
    { "id": "update", "request": {
        "method": "PUT",
        "endpoint": "https://shop.example.com/admin/api/currencies",
        "credential_id": "YOUR_STORE_TOKEN_ID",
        "body": "{ \"base\": \"USD\", \"as_of\": \"{{ $.date }}\", \"rates\": { \"EUR\": {{ $.rates.EUR }}, \"GBP\": {{ $.rates.GBP }}, \"CAD\": {{ $.rates.CAD }} } }" } }
  ]
}

Reference

Get an exchange rate from Frankfurter: frankfurter_latest

Sends GET https://api.frankfurter.app/latest (European Central Bank reference rates). No API key. Output for the next step: {"amount": 1, "base": "USD", "date": "2026-10-29", "rates": {"EUR": 0.92}}.

Field Type Notes
from string, required An ISO 4217 code, such as USD.
to string, required The ISO 4217 code to convert to, such as EUR.