Below is a list of relevant smart contracts and Github repositories for using and interacting with the Yearn product suite.
The Yearn ecosystem is controlled by YFI token holders who submit and vote on proposals that govern the ecosystem.
The v2 yield tokens can be used in one lender at a time. Currently being used on Curve’s Y Pool, Yearn’s yBTC pool and sUSD pool.
The v3 yield tokens allow the underlying assets to be spread across multiple lenders. Currently being used on Curve’s BUSD pool.
Vaults follow unique strategies that are designed to maximize yield of the deposited asset and minimize risk. The vaults are maintained by a
Controller which oversees the strategy execution. Strategies' generated profits are used to buy respective vault underlying asset.
Volatile assets can also participate in yield farming strategies as part of the Delegated Vaults. Currently, there is only one Delegated Vault: aLINK. The
Controller deposits LINK into AAVE and borrows stable coins (USDC). The initial health factor of these loans is always above 4, and if the health factor drops below 4 at any time the
Controller repays a portion of the debt in order to maintain a health factor above 4.
The stable coins borrowed (e.g., USDC, DAI, USDT, etc.) depend on the strategy selected by the
Controller. After obtaining stable coins the
Controller will deposit them into one of the yVaults identified above.
YFI holders govern the Yearn ecosystem and are eligible to receive a portion of protocol profits. Therefore, YFI represents a right to govern the platform and a claim on earnings. Profits are obtained from each of Yearn's products. In order to claim profits, YFI holders stake their tokens into the Governance contract.
The Vault Registry is the single source of truth for active Yearn vaults. The registry allows users to query for active Yearn vaults and vault metadata (details here).
On-chain uniswap pool ROI calculator
Allows on-chain rate comparison between Compound, Fulcrum, Aave, and dYdX.
An on-chain uniswap pool APR calculator. It calculates all values in ETH adjusted for the last year.
Contract for on-chain APR decision trees between Compound, Fulcrum, Aave, and dYdX.
On-chain stateless execution. Recommendations based on IearnAPR.
APR used for stateless
APR used for stateless