Cronos is the first Ethereum-compatible blockchain network built on Cosmos SDK technology. Cronos aims to massively scale the DeFi, GameFi, and overall Web3 user community by providing builders with the ability to instantly port apps and crypto assets from other chains while benefiting from low transaction fees, high throughput, and fast finality.
336
stars
691
commits
Go
primary language
Sep 10, 2026
updated
README
Table of Contents
- Table of Contents
- 1. Description
- 2. Contributing
- 3. License
- 4. Documentation
- 5. Build full node
- 6. Start a local Development Network and Node
- 7. Send Your First Transaction
- 8. Testing
- 9. Pystarport Quick Start
- 10. Useful links
1. Description
Cronos is the Crypto.org EVM chain that aims to massively scale the DeFi ecosystem.
2. Contributing
Please abide by the Code of Conduct in all interactions, and the contributing guidelines when submitting code.
3. License
4. Documentation
5. Build full node
# COSMOS_BUILD_OPTIONS=rocksdb make install
make build
6. Start a local Development Network and Node
Please follow this documentation to run a local devnet.
7. Send Your First Transaction
After setting the local devnet, you may interact with the your local blockchain by following this documentation.
8. Testing
There are different tests that can be executed in the following ways:
CI Testing
we use Nix as our CI testing environment and use gomod2nix to convert go modules into nix packages.
Therefore, to install gomod2nix is required:
go install github.com/nix-community/gomod2nix@latest
And then, you can run:
gomod2nix generate
to update gomod2nix.toml if any go package has changed.
9. Pystarport Quick Start
you can install pystarport to manage nodes for development.
install latest python (for linux)
python version should be 3.8 or above. you can install python like this.
git clone git@github.com:python/cpython.git
cd cpython
git checkout tags/v3.9.5
./configure
make
sudo make install
set path (for linux or for mac)
in some cases, if there are multiple python versions, pystarport cannot be found.
then adjust python path.
also $HOME/.local/bin should be included to the PATH.
export PATH=/usr/local/bin:$HOME/.local/bin:$PATH
install pystarport
python3 -m pip install pystarport
quick start
run two nodes devnet
pystarport serve --config ./scripts/cronos-devnet.yaml
get status
pystarport supervisorctl status
stop all
pystarport supervisorctl stop all
10. Useful links
- Project Website
- Technical Documentation
- Community chatrooms (non-technical): Discord Telegram
- Developer community channel (technical):
- Ethermint by Tharsis
- Cosmos SDK documentation
- Cosmos Discord
- Pystarport
Contributors
(top 30 of 46)
Similar repos
Languages
Go
54.7%
Python
32.0%
Solidity
4.5%
Nix
3.1%
Jsonnet
2.2%
Shell
1.8%
Cronos is the first Ethereum-compatible blockchain network built on Cosmos SDK technology. Cronos aims to massively scale the DeFi, GameFi, and overall Web3 user community by providing builders with the ability to instantly port apps and crypto assets from other chains while benefiting from low transaction fees, high throughput, and fast finality.
336
stars
691
commits
Go
primary language
Sep 10, 2026
updated
README
Table of Contents
- Table of Contents
- 1. Description
- 2. Contributing
- 3. License
- 4. Documentation
- 5. Build full node
- 6. Start a local Development Network and Node
- 7. Send Your First Transaction
- 8. Testing
- 9. Pystarport Quick Start
- 10. Useful links
1. Description
Cronos is the Crypto.org EVM chain that aims to massively scale the DeFi ecosystem.
2. Contributing
Please abide by the Code of Conduct in all interactions, and the contributing guidelines when submitting code.
3. License
4. Documentation
5. Build full node
# COSMOS_BUILD_OPTIONS=rocksdb make install
make build
6. Start a local Development Network and Node
Please follow this documentation to run a local devnet.
7. Send Your First Transaction
After setting the local devnet, you may interact with the your local blockchain by following this documentation.
8. Testing
There are different tests that can be executed in the following ways:
CI Testing
we use Nix as our CI testing environment and use gomod2nix to convert go modules into nix packages.
Therefore, to install gomod2nix is required:
go install github.com/nix-community/gomod2nix@latest
And then, you can run:
gomod2nix generate
to update gomod2nix.toml if any go package has changed.
9. Pystarport Quick Start
you can install pystarport to manage nodes for development.
install latest python (for linux)
python version should be 3.8 or above. you can install python like this.
git clone git@github.com:python/cpython.git
cd cpython
git checkout tags/v3.9.5
./configure
make
sudo make install
set path (for linux or for mac)
in some cases, if there are multiple python versions, pystarport cannot be found.
then adjust python path.
also $HOME/.local/bin should be included to the PATH.
export PATH=/usr/local/bin:$HOME/.local/bin:$PATH
install pystarport
python3 -m pip install pystarport
quick start
run two nodes devnet
pystarport serve --config ./scripts/cronos-devnet.yaml
get status
pystarport supervisorctl status
stop all
pystarport supervisorctl stop all
10. Useful links
- Project Website
- Technical Documentation
- Community chatrooms (non-technical): Discord Telegram
- Developer community channel (technical):
- Ethermint by Tharsis
- Cosmos SDK documentation
- Cosmos Discord
- Pystarport
Similar repos
Contributors
(top 30 of 46)
Languages
Go
54.7%
Python
32.0%
Solidity
4.5%
Nix
3.1%
Jsonnet
2.2%
Shell
1.8%