Nethermind is a high-performance, highly configurable Ethereum execution client built on .NET that runs on Linux, Windows, and macOS and supports Clique, Aura, and Ethash. With breakneck sync speeds and support for external plugins, it provides reliable access to rich on-chain data thanks to a high-performance JSON-RPC interface and node health monitoring with Grafana and Seq.

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. nethermind -c mainnet

In some cases, Visual C++ Redistributable may need an update:

winget install Microsoft.VCRedist.2015+.x64

1. winget install nethermind
2. nethermind -c mainnet

1. brew tap nethermindeth/nethermind
2. brew install nethermind
3. nethermind -c mainnet

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.