This repo contains JSONs files I've found useful for calculations related to currencies around the world.
Currently it has:
- world_sales_tax.json - global tax based on https://github.com/valeriansaliou/node-sales-tax but with finer US states taxes.
- iso4217_currency_codes.json - mapping of alpha-2 country codes to their currency originated with latest ISO4217.
- latest_rates.json - exchange rates cached from https://currencybeacon.com