FX Converter

FX Converter provides instant cross-currency calculations by applying the current exchange rate to the input amount. It supports any pair of ISO 4217 currencies and accepts an optional date to fetch historical rates for analysis.
Conceptually, the tool queries a rate for from_currency to to_currency, computes converted_value = amount * rate, and returns result, rate, and timestamp. It handles identical currencies by returning the original amount.
Who benefits: developers integrating pricing, ecommerce teams displaying multi-currency catalogs, travelers estimating costs, and finance staff performing budgeting. Unique value lies in fast, auditable rate data and straightforward inputs suitable for automated pipelines. Core features include input validation, latest and historical rate lookups, explicit rate timestamp, configurable output precision, and robust error handling for missing or unsupported data.