depositFunds

Transfer tokens from user's EOA to their Smart Wallet. Waits for transaction confirmation.

Supported assets:

• USDC (default): 6 decimals — e.g., "100000000" = 100 USDC
• WETH: 18 decimals — e.g., "1000000000000000000" = 1 WETH

Important for WETH deposits

You must deposit WETH (Wrapped ETH), not native ETH. If the user has ETH, they must wrap it to WETH first before depositing.

Minimum deposit

Chain	USDC	WETH
Base / Arbitrum	$5	0.001 WETH
Ethereum Mainnet	$10,000	5 WETH

Signature

depositFunds(userAddress: string, chainId: SupportedChainId, amount: string, asset?: "USDC" | "WETH"): Promise<DepositResponse>

Parameters

Parameter	Type	Required	Description
userAddress	string	✅	User's EOA address (owner of the Safe)
chainId	SupportedChainId	✅	Chain to deposit on
amount	string	✅	Amount in least decimal units (6 decimals for USDC, 18 decimals for WETH)
asset	"USDC" | "WETH"	❌	Asset to deposit (default: "USDC")

Returns

Deposit response with transaction hash and confirmation

Return Type

interface DepositResponse {
  success: boolean;
  txHash: string;
  smartWallet: string;
  amount: string;
}

Example

Deposit USDC (default)

// Deposit 100 USDC (6 decimals) to Safe on Base
const result = await sdk.depositFunds(
  "0xUser...",
  8453,
  "100000000" // 100 USDC = 100 * 10^6
);
console.log("Deposit confirmed:", result.txHash);
console.log("Smart Wallet:", result.smartWallet);

Deposit WETH

// Deposit 0.5 WETH (18 decimals) to Safe on Base
// IMPORTANT: User must have WETH, not ETH. Wrap ETH to WETH first if needed.
const result = await sdk.depositFunds(
  "0xUser...",
  8453,
  "500000000000000000", // 0.5 WETH = 0.5 * 10^18
  "WETH"
);
console.log("WETH deposit confirmed:", result.txHash);