Deposit

Deposit USDC into a private deposit address using zero-knowledge proofs

Enter the amount and optionally specify who can redeem. You can generate a new secret or reuse an existing one to top up a deposit.

Leave empty for unbounded mode (any address can redeem with the secret). Specify addresses to restrict redemption to those beneficiaries only (max 4).

Leave empty to generate a new key. Paste an existing key to top up that deposit (must use same beneficiaries).

View code 
import { Domain, IbcCoreRegistry } from "@unionlabs/payments";
import { Payment, EvmWalletClient, EvmPublicClient } from "@unionlabs/payments/promises";
const UNIVERSAL_CHAIN_ID = Domain.UniversalChainId.make("base.8453");

// Create from viem clients (wagmi compatible)
const walletClient = await EvmWalletClient.fromViem(viemWalletClient);
const publicClient = await EvmPublicClient.fromViem(viemPublicClient);

// Generate a new payment key
const paymentKey = await Payment.generateKey();

// Derive the deposit address
const depositAddress = await Payment.getDepositAddress({
  paymentKey,
  beneficiaries: [],
  destinationChainId: UNIVERSAL_CHAIN_ID,
});

// Prepare all transactions
const requests = await Payment.prepareDeposit({
  depositAddress,
  amount: 1n,
  destinationChainId: UNIVERSAL_CHAIN_ID,
  srcErc20Address: USDC_ADDRESS,
  sourceWalletClient: walletClient,
});
// => [approve, wrap, transfer]