Bundler & Paymaster Infrastructure

The thirdweb SDK handles all the heavy lifting of bundling operations and covering gas fees with a turn key infrastructure. The thirdweb paymaster and bundler services are stand alone and can be used with any smart account contract without using the thirdweb SDKs.

On testnets, the only requirement is to obtain a free client id to get started. Once you're ready to deploy on mainnets, you will require an active billing account. You can configure your client id to restrict interactions only with your own contracts or with any contract.

Using a Custom Bundler & Paymaster

Smart Wallet is free to use with your own account abstraction infrastructure. To use your own paymaster & bundler, pass the bundlerUrl, paymasterUrl and paymasterAPI options to the SmartWallet:

class MyPaymaster extends PaymasterAPI {
  async getPaymasterAndData(
    userOp: Partial<UserOperationStruct>,
  ): Promise<string> {
    // your implementation, must return the signed paymaster data
  }
}

const config: SmartWalletConfig = {
  chain,
  gasless,
  factoryAddress,
  clientId,
  bundlerUrl: "your-bundler-url",
  paymasterUrl: "your-paymaster-url",
  paymasterAPI: new MyPaymaster(),
};