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Cronos

Cronos is an Ethereum-compatible blockchain network built with Cosmos SDK technology. Its Go repository provides software and instructions for building a full node and running a local development network.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Cronos — OpenViST project profile in Layer 1.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Cronos when your work targets an Ethereum-compatible network built with Cosmos SDK technology, or when you need the repository’s node software and local development-network guidance.

Who it is for

  • Developers building applications for an EVM-compatible chain.
  • Teams seeking to run a self-hosted Cronos full node.
  • Builders who want a local multi-node network for development.

Documented uses

  • Build Cronos full-node software.
  • Start and manage a local two-node development network with Pystarport.
  • Use the linked local-devnet documentation to interact with a local chain and send a transaction.
  • Build or adapt applications targeting the Cronos EVM.
Before you choose

Requirements & limits

The repository is publicly visible and includes contribution guidance. Its README identifies Apache 2.0 as the license.

  • The chain combines EVM compatibility with Cosmos SDK technology.
  • The README documents a full-node build command and points to separate instructions for local devnet setup and chain interaction.
  • Pystarport is a separate development tool used to manage the documented two-node devnet; its quick start requires Python 3.8 or above.

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 Cronos full-node software

Build the full-node software from the Cronos repository.

Before you start

  • A local copy of the Cronos repository.
  • A build environment capable of running the repository's Makefile.

Steps

  1. From the repository root, run the command below.

    Documented command
    make build

  2. To enable the documented RocksDB build option, use COSMOS_BUILD_OPTIONS=rocksdb make install instead of the default build command.

Expected outcome

The documented build command completes the full-node software build; the optional command installs with the RocksDB build option.

Guide limitations

  • The README does not specify operating-system or toolchain versions, or steps for installing build dependencies.
  • The command builds the node software; running a local development network requires a separate procedure.
Documentation 1 ↗
Source-based practical guide

Start a two-node Cronos development network with Pystarport

Start and manage the two-node development network defined by the Cronos Pystarport configuration.

Before you start

  • Python 3.8 or above.
  • Pystarport installed with python3 -m pip install pystarport.
  • The Cronos repository files, including ./scripts/cronos-devnet.yaml.
  • On Linux or macOS, ensure $HOME/.local/bin is on PATH; the README gives export PATH=/usr/local/bin:$HOME/.local/bin:$PATH as an example.

Steps

  1. On Linux, install Python 3.8 or above; the README gives a CPython 3.9.5 source-build procedure.

  2. If needed on Linux or macOS, set PATH using the documented export command.

  3. Install Pystarport with the command below.

    Documented command
    python3 -m pip install pystarport

  4. From the repository root, start the network with pystarport serve --config ./scripts/cronos-devnet.yaml.

  5. Check node status with pystarport supervisorctl status; stop all nodes with pystarport supervisorctl stop all.

Expected outcome

Pystarport starts the configured two-node development network; its supervisor command reports status and can stop all nodes.

Guide limitations

  • The Python source-build procedure is specifically given for Linux; the PATH guidance applies to Linux or macOS.
  • The instructions cover a local development network, not a production deployment or transaction workflow.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
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Sources checked
17 October 2026
Original website title
crypto-org-chain/cronos · Official homepage title · retained in its source language
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