UserOp Manager

A developer tool designed for managing, testing, and debugging ERC-4337 User Operations. This application provides a streamlined interface to execute the full lifecycle of a User Operation: Preparation, Paymaster Sponsorship, Signing, and Sending to a bundler.

Features

• Prepare: Construct User Operations for value transfers.
• Sponsor: Interact with a Paymaster service to sponsor gas fees.
• Sign: Sign User Operations using a local private key.
• Send: Dispatch operations to an ERC-4337 Bundler and track transaction status.
• Configuration: Easily configure chain settings, bundler URLs, and account details.

Prerequisites

• Node.js
• pnpm

Getting Started

1. Install dependencies:

   pnpm install

2. Start the application:

   pnpm start

3. Open your browser at: http://localhost:4337