Nethermind is a high-performance, highly configurable full Ethereum protocol execution client built on .NET that runs on Linux, Windows, and macOS, and supports Clique, Aura, and Ethash. Nethermind offers very fast sync speeds and support for external plugins. Enjoy reliable access to rich on-chain data thanks to high-performance JSON-RPC based on the Kestrel web server. Healthy node monitoring is secured with Grafana analytics and Seq logging.

Nethermind documentation is available at docs.nethermind.io.

Mainnet Goerli Sepolia Holesky Gnosis (xDai) Chiado Energy Web Volta

Release builds are available on the Releases page and at downloads.nethermind.io.

• Ubuntu / Debian

  sudo apt-get install libsnappy-dev

• CentOS / Fedora

  sudo dnf install -y snappy
  sudo ln -s `find /usr/lib64/ -type f -name "libbz2.so.1*"` /usr/lib64/libbz2.so.1.0

1. sudo add-apt-repository ppa:nethermindeth/nethermind
   If command not found: sudo apt-get install software-properties-common
2. sudo apt-get install nethermind
3. To run directly: nethermind -c mainnet
   or with the assistant: nethermind

Install Visual C++ Redistributable:

winget install Microsoft.VCRedist.2015+.x64

1. winget install nethermind
2. To run directly: nethermind.exe -c mainnet
   or with the assistant: nethermind-launcher.exe

brew install lz4 snappy zstd

1. brew tap nethermindeth/nethermind
2. brew install nethermind
3. To run directly: nethermind -c mainnet
   or with the assistant: nethermind-launcher

The official Docker images of Nethermind are available on Docker Hub.

In case of any Docker image need to be updated in the repository, you can update the digest of these images as follows:

docker inspect --format='{{index .RepoDigests 0}}' <image_name>

The output should show the image digest, and then you can copy that to the FROM tag in the Dockerfile.

Install .NET SDK

git clone --recursive https://github.com/nethermindeth/nethermind.git

cd nethermind/src/Nethermind/Nethermind.Runner
dotnet run -c release -- -c mainnet

cd nethermind/src/Nethermind

# Run Nethermind tests:
dotnet test Nethermind.sln -c release

# Run Ethereum Foundation tests:
dotnet test EthereumTests.sln -c release

BEFORE you start work on a feature or fix, please read and follow our contribution guide to help avoid any wasted or duplicate effort.

If you believe you have found a security vulnerability in our code, please report it to us as described in our security policy.

Nethermind is an open-source software licensed under the LGPL-3.0.