Betsy

An all-in-one CLI tool to manage ERC 4337 infrastructure for local development and testing.

✨ Features include:

1. Ephemeral In-Memory Ethereum Execution Client(Geth)
   • Starts a fresh instance with each run, ensuring a clean slate every time.
   • Destroyed after each Betsy run.
2. Pre-funded accounts
   • Default accounts with pre-funded balances.
   • Includes private keys for easy access.
3. Pre-deployed contract
   • Type-safe Go binding for Account Abstraction contracts:
     • EntryPoint release v7
     • SimpleAccountFactory release v7
     • Additional contract: GlobalCounter.
4. ERC 4337 Bundler clients
   • Includes integration with:
     • Transeptor bundler
5. Realtime ERC 4337 userOp Mempool Explorer UI
   • Visualize the userOp mempool in real-time, offering an insightful view into current operations.

🚧 Coming soon:

1. Supported ERC 4337 bundlers**
   • Transeptor
   • Other bundlers (e.g. Aabundler, Okbund etc.)
2. Ethereum execution client forks for EVM mainnet and testnet. Run a fork of the Ethereum mainnet or testnet to test your AA smart contracts in a real-world environment.
3. Manage Entrypoint deposits, withdrawals, and stakes on local Entrypoint contract.
4. Realtime ERC 4337 Bundler bundle explorer UI. Visualize the bundler bundle production in real time.

Installation

For more information on installing Betsy, see the Installation guide.

Development

Information on how to set a development environment for Betsy.

Branches

The main branch acts as the development branch and is the repository's default branch. The main branch build will be marked as unstable in the version.

• Betsy's latest stable version can be found on branch release/x.y.z.

Running the CLI

Run the following command to start the CLI:

make run-cli

Running tests

To run the tests, execute the following command:

make test

Or to run the tests with coverage:

make test-coverage

Contributing

If you would like to contribute, please follow these guidelines here.

License

Licensed under the MIT.