Vyper contracts used in Curve exchange pools.
Curve is an exchange liquidity pool on Ethereum designed for extremely efficient stablecoin trading and low risk, supplemental fee income for liquidity providers, without an opportunity cost.
Curve allows users to trade between correlated cryptocurrencies with a bespoke low slippage, low fee algorithm. The liquidity pool is also supplied to lending protocol where it generates additional income for liquidity providers.
- python3 version 3.6 or greater, python3-dev
- brownie - tested with version 1.11.0
- ganache-cli - tested with version 6.10.1
Curve contracts are compiled using Vyper, however installation of the required Vyper versions is handled by Brownie.
To get started, first create and initialize a Python virtual environment. Next, clone the repo and install the developer dependencies:
git clone https://github.com/curvefi/curve-contract.git
cd curve-contract
pip install -r requirements- New Curve pools are built from the contract templates at
contracts/pool-templates - Once deployed, the contracts for a pool are added to
contracts/pools
See the documentation within contracts and it's subdirectories for more detailed information on how to get started developing on Curve.
The test suite contains common tests for all Curve pools, as well as unique per-pool tests. To run the entire suite:
brownie testTo run tests on a specific pool:
pytest tests --pool <POOL NAME>Valid pool names are the names of the subdirectories within contracts/pools.
To deploy a new pool based on one of the templates:
- In
brownie_hooks.py, set the number of coins and decimal places. - In
scripts/deploy.py, set the constructor parameters and deployer account.
To deploy a pool based on StableSwapBase (without lending):
brownie run deploy base --network mainnetTo deploy a pool based on StableSwapYLend (with yearn-style lending):
brownie run deploy ylend --network mainnetCurve smart contracts have been audited by Trail of Bits. These audit reports are made available on the Curve website.
There is also an active bug bounty for issues which can lead to substantial loss of money, critical bugs such as a broken live-ness condition, or irreversible loss of funds.
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