MegaETH EVM

A specialized Ethereum Virtual Machine (EVM) implementation tailored for MegaETH specifications, built on top of revm and op-revm.

Crates

Crate	Description
mega-evm	Core EVM implementation with MegaETH specs (EQUIVALENCE through REX7)
mega-system-contracts	Solidity system contracts with Rust bindings
mega-evme	CLI tool for EVM execution (run, tx, replay)
mega-t8n	Standalone state transition (t8n) tool
state-test	Ethereum state test runner

Installation

Install the CLI tool from crates.io:

cargo install mega-evme --locked

The --locked flag ensures the exact tested dependency versions are used.

Or build from source:

cargo build --release -p mega-evme

Prebuilt binary

Every release also attaches a prebuilt mega-evme (Linux x86_64, built on ubuntu-24.04) and a SHA256SUMS file to its GitHub Release. Download both, verify the checksum, and make the binary executable:

sha256sum --check --ignore-missing SHA256SUMS
chmod +x mega-evme
./mega-evme --version

The same binary is published to the MegaETH artifact registry for internal use.

Development

This repository uses git submodules. Clone with submodules:

git clone --recursive https://github.com/megaeth-labs/mega-evm.git

Or if you've already cloned, initialize submodules:

git submodule update --init --recursive

Building

cargo build

Testing

cargo test

Documentation

• mega-evm specification
• Architecture

License

MIT OR Apache-2.0