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POST AI agent ready /v1/currency/rates

Currency Rates API - Bulk ECB Exchange Rates

Fetches the full rate table from Frankfurter.dev for the given base currency (defaults to USD) and returns every cross rate in a single response. The date field reflects the business day the ECB published the rates.

Parameters

string

Base currency code (ISO 4217). Defaults to USD.

Code examples

curl -X POST https://api.botoi.com/v1/currency/rates \
  -H "Content-Type: application/json" \
  -d '{"base":"EUR"}'

When to use this API

Populate a currency selector with live prices

On an e-commerce product page, cache the rates from this endpoint for 1 hour and show prices in every supported currency. One call powers the entire picker without N individual conversion requests.

Batch convert order history

When generating a multi-currency revenue report, pull all rates once and convert thousands of rows in-process. Much cheaper than calling /v1/currency/convert per row.

FX rate alerting

Poll daily and compare to the previous day. Alert when any target currency moves more than 2% against the base, useful for treasury teams managing invoiced FX exposure.

Frequently asked questions

How often do rates update?
Once per business day at approximately 16:00 CET when the ECB publishes its reference rates. The date field in the response reflects the most recent business day with data.
Can I use any currency as the base?
Any of the 30+ ECB-tracked currencies. The same cross-rate set is available regardless of base; the values are just renormalized.
Why are some currencies missing?
Frankfurter follows the ECB reference list. Currencies outside that list (many emerging markets, some African currencies) are not published. Use a commercial FX provider for exotic pairs.
Is this suitable for trading?
No. ECB reference rates are mid-market midday prints, not tradable quotes. For execution-grade pricing use a real-time FX feed from a broker or bank.
What happens on weekends?
The endpoint returns the rates from the most recent business day. Saturday and Sunday responses are identical to Friday's.

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