Carbon is a fully decentralized protocol for automating on-chain trading strategies.
Some examples of the advanced features Carbon offers:
- Linked limit & ranged orders
- Automated Strategies
- Non-custodial and fully decentralized
- Asymmetric & Irreversible Liquidity
- All standard ERC-20 tokens supported (excluding rebase/fee-on-transfer tokens)
- MEV Resistant
The repository is part of the bug bounty program. See the details here.
The security policy is available here.
As a first step of contributing to the repo, you should install all the required dependencies via:
pnpm installYou will also need to create and update the .env file if you’d like to interact or run the unit tests against mainnet forks (see .env.example)
Testing the protocol is possible via multiple approaches:
You can run the full test suite via:
pnpm testYou can also run the test suite with additional stress tests via:
pnpm test:nightlyThis suite is called “nightly” since it’s scheduled to run every day at midnight against the release and production branches (see nightly.yml).
You can test new deployments (and the health of the network) against a mainnet fork via:
pnpm test:deployThis will automatically be skipped on an already deployed and configured deployment scripts and will only test the additional changeset resulting by running any new/pending deployment scripts and perform an e2e test against the up to date state. This is especially useful to verify that any future deployments and upgrades, suggested by the DAO, work correctly and preserve the integrity of the system.
- 99.3% Statements 424/427
- 92.55% Branches 298/322
- 99.28% Functions 137/138
- 99.28% Lines 548/552
------------------------|----------|----------|----------|----------|----------------|
File | % Stmts | % Branch | % Funcs | % Lines |Uncovered Lines |
------------------------|----------|----------|----------|----------|----------------|
carbon/ | 99.61 | 93.43 | 98.51 | 99.7 | |
CarbonController.sol | 98.67 | 89.77 | 96.55 | 98.84 | 94 |
Pairs.sol | 100 | 85.71 | 100 | 100 | |
Strategies.sol | 100 | 97.92 | 100 | 100 | |
carbon/interfaces/ | 100 | 100 | 100 | 100 | |
ICarbonController.sol | 100 | 100 | 100 | 100 | |
fees/ | 100 | 87.5 | 100 | 100 | |
FeeBurner.sol | 100 | 87.5 | 100 | 100 | |
fees/interfaces/ | 100 | 100 | 100 | 100 | |
IFeeBurner.sol | 100 | 100 | 100 | 100 | |
token/ | 94.12 | 90 | 100 | 94.12 | |
ERC20Burnable.sol | 100 | 100 | 100 | 100 | |
Token.sol | 93.55 | 90 | 100 | 93.55 | 92,142 |
token/interfaces/ | 100 | 100 | 100 | 100 | |
IERC20Burnable.sol | 100 | 100 | 100 | 100 | |
utility/ | 100 | 93.75 | 100 | 100 | |
Constants.sol | 100 | 100 | 100 | 100 | |
MathEx.sol | 100 | 100 | 100 | 100 | |
OnlyProxyDelegate.sol | 100 | 100 | 100 | 100 | |
Upgradeable.sol | 100 | 75 | 100 | 100 | |
Utils.sol | 100 | 100 | 100 | 100 | |
utility/interfaces/ | 100 | 100 | 100 | 100 | |
IUpgradeable.sol | 100 | 100 | 100 | 100 | |
IVersioned.sol | 100 | 100 | 100 | 100 | |
voucher/ | 100 | 92.5 | 100 | 97.96 | |
Voucher.sol | 100 | 92.5 | 100 | 97.96 | 249 |
voucher/interfaces/ | 100 | 100 | 100 | 100 | |
IVoucher.sol | 100 | 100 | 100 | 100 | |
------------------------|----------|----------|----------|----------|----------------|
All files | 99.3 | 92.55 | 99.28 | 99.28 | |
------------------------|----------|----------|----------|----------|----------------|In order to audit the test coverage of the full test suite, run:
pnpm test:coverageIt’s also possible to audit the test coverage of the deployment unit-tests only (which is especially useful when verifying that any future deployments and upgrades are properly covered and tested before the DAO can consider to execute them):
pnpm test:coverage:deploySimilarly to the regular test suite, it’s also possible to audit the test coverage of the stress test suite via:
pnpm test:coverage:nightlyThe contracts have built-in support for deployments on different chains and mainnet forks, powered by the awesome hardhat-deploy framework (tip of the hat to @wighawag for the crazy effort him and the rest of the contributors have put into the project).
You can deploy the fully configured Carbon protocol on any network by setting up the HARDHAT_NETWORK environmental variable in .env and running:
pnpm deploy:prepare && pnpm deploy:networkThe deployment artifacts are going to be in deployments/{network_name}.
If deploying a licensed deployment on a network, it's recommended to fork the carbon-contracts repo and push the deployment artifacts after deployment.
If you want to verify the contracts after deployment, please set up the VERIFY_API_KEY environmental variable to the etherscan api key.
There’s also a special deployment mode which deploys the protocol to a tenderly fork. You should set up TENDERLY_NETWORK_NAME to the network name in .env and run:
pnpm deploy:forkYou can also deploy the protocol to a tenderly testnet. You should set up TENDERLY_NETWORK_NAME to the network name in .env and run:
pnpm deploy:testnet