cryptocurrency purchases through our fiat-to-crypto partners


Initiates a top up tx with the specified provider right from the dapp. Please refer below for supported values of params and providers

const paymentStatus = await torus.initiateTopup(provider, params);


  • provider - enum (required) : The specified payment partner. Supported options for provider are moonpay wyre coindirect

  • params - PaymentParams (optional) : The topup tx params. used to autofill the form for that specific provider

    • selectedAddress - string (optional): The address to top up

    • selectedCurrency - string (optional) : The fiat currency supported. e.g.: "USD". In case an unsupported currency is specified, it throws

    • fiatValue - Number (optional) : The fiat value. It must be between the max and min value supported by that provider

    • selectedCryptoCurrency - string (optional) : The crypto currency supported. e.g.: "ETH". In case an unsupported crypto currency is specified, it throws


  • Promise<boolean> : Returns a promise which resolves to a boolean indicating whether user has successfully completed the flow


torus.paymentProviders = {
moonpay: {
minOrderValue: 24.99,
maxOrderValue: 2000,
validCurrencies: ['USD', 'EUR', 'GBP'],
validCryptoCurrencies: ['ETH', 'DAI', 'TUSD', 'USDC', 'USDT']
wyre: {
minOrderValue: 20,
maxOrderValue: 250,
validCurrencies: ['USD'],
validCryptoCurrencies: ['ETH', 'DAI', 'USDC']
rampnetwork: {
minOrderValue: 1,
maxOrderValue: 10000,
validCurrencies: ['GBP', 'EUR'],
validCryptoCurrencies: ['ETH', 'DAI', 'USDC']
interface PaymentParams {
selectedAddress?: string;
selectedCurrency?: string;
fiatValue?: Number;
selectedCryptoCurrency?: string;


const paymentStatus = await torus.initiateTopup('wyre');
const paymentStatus = await torus.initiateTopup('moonpay', {
selectedCurrency: "USD",
fiatValue: 50,
selectedCryptoCurrency: "ETH",
selectedAddress: "0xabc..."
const paymentStatus = await torus.initiateTopup('rampnetwork', {
selectedCurrency: "USD"