Supported currencies
This page lists the cryptocurrencies and fiat currencies Txn supports, grouped by environment and currency type. For how each type behaves in API requests, see Currency types below.
Network fees are set at the network level and, along with per-currency deposit minimums, may change without notice.
Network codes in the Sandbox environment differ from those in Production — testnet networks are typically prefixed (tbtc, ttrx:usdt, hteth, etc.).
During the initial setup of your sandbox account, Txn adds test balances to your account. Reach out to your Txn integration manager if you need more test funds, including cryptocurrency testnet liquidity, to run your integration tests.
Currency types
Txn supports three classes of currency. The class determines where the currency can be used in the API.
Cryptocurrencies — settled on-chain. Used as the on-chain asset transferred to or from a wallet, and held as account balance on Txn.
Tradable fiat — fiat currencies in which you can hold an account balance on Txn. A master account is created for each tradable currency at company onboarding (see Accounts concept).
Display fiat — fiat currencies used only to present amounts to end users. Display currencies cannot hold a balance — the underlying settlement always happens in a tradable currency or cryptocurrency.
Where each currency type can be used
Invoice billedCurrency
✓
✓
✓
Invoice chargedCurrency
✓
—
—
Invoice targetCurrency
✓
✓
—
Payout currency
✓
✓
✓
Payout chargeCurrency
✓
✓
—
Payout payCurrency
✓
—
—
Payment link currency
✓
✓
✓
Payment link accountCurrency
✓
✓
—
Channel targetCurrency
✓
✓
—
Channel localCurrency
✓
✓
✓
Held as account balance
✓
✓
—
Production environment
Cryptocurrencies
2 The v2 suffix refers to the bridged USDC contract on Polygon. Use this code when integrating Polygon USDC; the legacy code is no longer accepted.
Tradable fiat
Euro
EUR
2
US Dollar
USD
2
British Pound
GBP
2
Canadian Dollar
CAD
2
New Zealand Dollar
NZD
2
Japanese Yen
JPY
0
Display fiat
Australian Dollar
AUD
2
Brazilian Real
BRL
2
Chilean Peso
CLP
0
Chinese Yuan
CNY
2
Colombian Peso
COP
2
Hong Kong Dollar
HKD
2
Indian Rupee
INR
2
Indonesian Rupiah
IDR
2
Malaysian Ringgit
MYR
2
Mexican Peso
MXN
2
New Taiwan Dollar
TWD
2
Nigerian Naira
NGN
2
Peruvian Sol
PEN
2
Philippine Peso
PHP
2
South African Rand
ZAR
2
South Korean Won
KRW
0
Thai Baht
THB
2
Turkish Lira
TRY
2
Vietnamese Dong
VND
0
Sandbox environment
The Sandbox environment supports a subset of the production cryptocurrencies for testing. The fiat currency catalogue is identical across environments, so the Tradable fiat and Display fiat tables above apply to Sandbox as well.
Cryptocurrencies
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