OpenViSTAI · Agents · Blockchain · Crypto
Submit a project
Menu
Infrastructure

Evmone

Evmone is a C++ implementation of the Ethereum Virtual Machine that exposes the EVMC API and can be imported as an execution module by Ethereum client projects.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Evmone — OpenViST project profile in Infrastructure.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Evmone when an Ethereum client or C++ application needs a reusable EVM implementation rather than a complete end-user blockchain application.

Who it is for

  • Ethereum client developers
  • C++ developers embedding EVM execution
  • Teams building self-hosted Ethereum-compatible execution components

Documented uses

  • Execute EVM smart-contract code through a standalone implementation.
  • Replace or integrate an Ethereum client's EVM through the EVMC interface.
  • Build, test and benchmark an EVM execution module from source.
Before you choose

Requirements & limits

The repository is public and licensed under Apache-2.0. Source builds are documented for Linux, macOS and Windows; the technical classification also identifies server and self-hosted use.

  • EVMC is the documented integration interface.
  • The project requires C++20.
  • Baseline is the default interpreter; Advanced adds extensive bytecode analysis, indirect call threading and block-level gas and stack precomputation.
  • The intx and ethash libraries provide documented arithmetic and Keccak-related dependencies.
  • Full expmod precompile support requires GMP at build and execution time.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Build the evmone EVMC module

Configure and compile the evmone shared library and its documented test and benchmark tools.

Before you start

  • A source checkout with recursive submodules
  • CMake
  • A C++20-capable build environment
  • GMP if full expmod precompile support is required

Steps

  1. Clone the repository recursively and change into its directory.

  2. Configure the build with CMake; Linux and macOS use the documented CMake configuration, while Windows uses the Visual Studio 2019 x64 generator.

  3. Build the project with parallel compilation.

  4. Run the documented unit-test executable or benchmark tool.

Expected outcome

A compiled evmone EVMC module, with documented test and benchmark executables available from the build.

Guide limitations

  • Full expmod precompile implementation requires GMP at build and execution time; default stubs cover known inputs.
  • The evidence documents compilation and local test or benchmark commands, not a complete Ethereum client deployment.
Documentation 1 ↗
Source-based practical guide

Use evmone as a geth EVM plugin

Connect the evmone shared library to a geth build that supports EVMC.

Before you start

  • A modified geth version with EVMC support
  • The evmone shared library
  • A geth installation that accepts the documented --vm.evm option

Steps

  1. Obtain a geth build with EVMC support, such as the fork referenced in the repository.

  2. Download or build the evmone shared library.

  3. Start geth with --vm.evm pointing to the evmone shared library.

Expected outcome

The EVMC-enabled geth process is configured to use evmone in place of geth's internal EVM.

Guide limitations

  • The repository states that a modified geth version is required.
  • The guide documents client configuration, not execution verification or compatibility guarantees.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
2 October 2026
Original website title
ipsilon/evmone · Official homepage title · retained in its source language
How we review sourcesSuggest a correction