> For the complete documentation index, see [llms.txt](https://docs.thndr.io/integration/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.thndr.io/integration/server-webhooks/currencies.md).

# Currencies

## Match Currency

The match currency determines the standardized bet amounts for all players in the matchmaking pool:

* USD - Required if players participate in the global matchmaking
* Custom operator currency - Any currency chosen by the operator (e.g., “stars”). Players cannot participate in global matchmaking if it is not USD-pegged, which may increase waiting times.

## User Currency

Players always see amounts in their **user currency.** The player’s currency can be provided by operator during game launch (standard: [Authenticate Users](/integration/launch-game/standard/authenticate-users.md)  or custom: [Authenticate Users](/integration/launch-game/custom/authenticate-users.md)). Bet amounts are converted to this currency using exchange rates from [www.xe.com](https://www.xe.com/) (updated every 6 hours). Rates are frozen for the session and applied to both entry fees and potential payouts.

Conversion from match currency to user currency is supported for following [ISO 4217 codes](https://en.wikipedia.org/wiki/ISO_4217):

BTC, ARS, AZN, BRL, CLP, CNY, COP, EGP, EUR, GBP, GHS, IDR, INR, JPY, KES, KZT, MXN, NGN, PEN, RUB, RWF, THB, TRY, TZS, UAH, UGX, UZS, ZAR.

## API

All amounts in the API are expressed in the smallest unit of the currency (e.g., cents for USD, satoshis for BTC) in the user currency.

## Notes

* Some currencies do not have 2 decimal digits (e.g., CLP, JPY, RWF, UGX).
* BTC amounts are in satoshis
* More currencies can be added on operator's request