> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-eb-mini-app-ia-overhaul.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# isWalletACoinbaseSmartWallet

The `isWalletACoinbaseSmartWallet` utility is designed to verify if a given sender address is a Smart Wallet proxy with the expected implementation before sponsoring a transaction.

## Usage

<CodeGroup>
  ```tsx code
  // @noErrors: 2352 2801 2719 2305
  import { isWalletACoinbaseSmartWallet } from '@coinbase/onchainkit/wallet';
  import { http } from 'viem';
  import { baseSepolia } from 'viem/chains';
  import type { UserOperation } from 'permissionless';
  import { type PublicClient, createPublicClient } from 'viem';

  export const publicClient = createPublicClient({
    chain: baseSepolia,
    transport: http(),
  });

  const userOperation = { sender: '0x123' } as UserOperation<'v0.6'>;

  if (isWalletACoinbaseSmartWallet({ client: publicClient, userOp: userOperation })) {
    console.log('The sender address is a valid smart wallet proxy.');
  } else {
    console.log('The sender address is not a valid smart wallet proxy.');
  }
  ```

  ```ts return value
  true;
  ```
</CodeGroup>

## Returns

[`IsWalletACoinbaseSmartWalletResponse`](/onchainkit/wallet/types#iswalletacoinbasesmartwalletresponse)

## Parameters

[`isWalletACoinbaseSmartWalletOptions`](/onchainkit/wallet/types#iswalletacoinbasesmartwalletoptions)