currency

Fetch exchange rates and convert money amounts through the free, key-less Frankfurter API (ECB-sourced fiat rates, updated daily ~16:00 CET). Prefer os.http.request GET; if the host allowlist is not null, it must include api.frankfurter.dev.

Fiat only — no crypto, no precious metals on v1. Rates refresh on business days, so weekend/holiday requests return the most recent business-day rate.

Endpoints (v1, stable)

Base URL: https://api.frankfurter.dev/v1