Voltaire

Modular and lighting-fast Python-Rust Bundler for Ethereum EIP-4337 Account Abstraction

Using an instance

For a quick bundler instance, use one of our public hosted endpoints for your development.

Deployment

Deploy Voltaire using the latest docker image

docker run --net=host --rm -ti ghcr.io/candidelabs/voltaire/voltaire-bundler:latest --bundler_secret $BUNDLER_SECRET --rpc_url $RPC_URL --rpc_port $PORT --ethereum_node_url $ETHEREUM_NODE_URL --chain_id $CHAIN_ID --verbose --unsafe --disable_p2p

Development

Ubuntu: Get started testing the bundler in 5 minutes

Install Poetry

curl -sSL https://install.python-poetry.org | python3 -

Install dependencies

poetry install

Make sure you are using the right python version

poetry env use python3.11

Install Docker

Follow the installation guide to install docker on ubuntu

Post docker installation

Follow the instruction for docker's post linux instalation

Start geth

docker run --rm -ti --name geth -p 8545:8545 ethereum/client-go:v1.10.26 \
  --miner.gaslimit 12000000 \
  --http --http.api personal,eth,net,web3,debug \
  --http.vhosts '*,localhost,host.docker.internal' --http.addr "0.0.0.0" \
  --ignore-legacy-receipts --allow-insecure-unlock --rpc.allow-unprotected-txs \
  --dev \
  --verbosity 4 \
  --nodiscover --maxpeers 0 --mine --miner.threads 1 \
  --networkid 1337

Deploy the EntryPoint and fund the signer (in another terminal)

geth --exec 'loadScript("scripts/deploy.js")' attach http://0.0.0.0:8545

Set env values

source scripts/init-params 

Run the bundler

poetry run python3 -m voltaire_bundler --entrypoint $ENTRYPOINT --bundler_secret $BUNDLER_SECRET --chain_id 1337 --verbose

Test the bundler by cloning eth-infinitism/bundler-spec-tests

Follow the instruction in eth-infinitism/bundler-spec-tests to install dependencies and run the test

P2P rust section development

Install Rust

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Install build dependencies

sudo apt install musl-tools
rustup target add x86_64-unknown-linux-musl

Build the rust section using poetry script

poetry run build_p2p

Contributions

Thank you for considering contributing to open-source code! We welcome contributions and are grateful for even the smallest of fixes.

If you want to contribute today or follow along with the contributor discussion, you can use our main discord to chat with us about the development of Voltaire.

License

LGPL

Acknowledgments

None of this would have been possible without the following teams and organizations below:

• EIP-4337: Account Abstraction via Entry Point Contract specification
• eth-infinitism/bundler
• Lighthouse: Ethereum consensus client
• The Ethereum Foundation throught the Ecosystem Support Grants Program (ESP).