Dex aggregator for Avalanche. Use at your own risk.
UI available from https://yieldyak.com/swap
The Avalanche C-Chain is saturated with 10+ exchanges competing ~200M of liquidity. This creates the following issues for traders:
- Split liquidity: Traders are more likely to get affected by price impact and negative slippage since liquidity is split across many exchanges.
- Disconnected assets: Traders need to approve and swap on multiple platforms to swap between certain assets in the Avalanche ecosystem.
- No simple way to determine best price for swap: With all the options there is no clear way of knowing which exchange will offer the best price for a particular trade.
YY Swap solves these problems by finding and executing the most profitable trades for users.
- Multi-path trades (e.g. Pangolin > Gondola > Zero)
- Gas-cost considerations
- Easy to build on top of
YakRouter is the user-facing interface to check prices and make trades.
| Name | Address |
|---|---|
| YakRouter | 0xC4729E56b831d74bBc18797e0e17A295fA77488c |
Query YakRouter for the best trade execution.
Parameters
- amountIn[BigNumber]: Amount of tokens being sold
- tokenIn[String]: ERC20 token being sold (pass WAVAX address for AVAX)
- tokenOut[String]: ERC20 token being bought (pass WAVAX address for AVAX)
- steps[BigNumber]: Number of steps within which best path will be searched (max is 4)
- gasPrice[BigNumber]: Gas price in gwei (should be 225 GWEI now, but is planned be dynamic in the future)
router.findBestPathWithGas(
amountIn,
tokenIn,
tokenOut,
steps,
gasPrice
)Swap YakRouter to execute a trade.
Parameters
- trade[Array]: Array of paramters used for swapping
- amountIn[BigNumber]: Amount of tokens being sold
- amountOut[BigNumber]: Minimum amount of tokens bought
- path[Array]: Tokens being traded (in respective order)
- adapters[Array]: Adapters through which tokens will be traded (in respective order)
- to[String]: Address where output tokens should be sent to
- fee[BigNumber]: Optional fee in bps taken before the trades
router.swapNoSplit(trade, to, fee)router.swapNoSplitToAVAX(trade, to, fee);router.swapNoSplitFromAVAX(trade, to, fee, { value: amountIn });Adapters act as a common interface for YakRouter to interact with external contracts.
Adapters must offer methods: query and swap.
| Name | Address |
|---|---|
| BaguetteYakAdapterV0 | 0x5BaCF41D5D6B16183c2B980BcE0FbbE5ea125d2F |
| BridgeMigrationAdapterV0 | 0xd311F964Dd5bb5ecBd971592E845b0fb74c98b39 |
| BytesManipulationV0 | 0xdd892a0b5Bcfd435489e31D8e2ec9C9B83f85977 |
| CanaryYakAdapterV0 | 0x2BC16C1D9A5E6af362277ED424130cC6b2DDe2D9 |
| ComplusAdapterV0 | 0x273FcA9cd4C4873EFC303b0b61b5E5CB35CD9A70 |
| ElkYakAdapterV0 | 0xb2e51D2E2B85DbbE8C758C753b5BdA3f86Af05E4 |
| GondolaUSDTeDAIeYakAdapterV0 | 0xA5e0B490be8A2f8281e09d5920953c65e803a1DC |
| GondolaUSDTeTSDAdapterV0 | 0x4884E64D9Ae8e00e9Da80f0B7791c998ac8828B7 |
| GondolaUSDTeUSDCeAdapterV0 | 0x2296706d53e6522942E8714Bdbc2e50625C5d4D4 |
| GondolaYAKmYAKAdapterV0 | 0x10EF2400d1a7f64017e80669B218f30ca9816e22 |
| LydiaYakAdapterV0 | 0x1276350e5855B2BCD089722a678C7D16f3ab5923 |
| MiniYakAdapterV0 | 0xC3BEe4623A7aE76Ca0805078e98069DEbF79E826 |
| OliveYakAdapterV0 | 0x6E73F353e4AE3E5005daaD619F22D7C7B790c4f3 |
| PandaYakAdapterV0 | 0x4E5a8D1EB5250c766AD55eE18314a76Fcb92A867 |
| PangolinYakAdapterV0 | 0x3614657EDc3cb90BA420E5f4F61679777e4974E3 |
| PartyswapAdapterV0 | 0xFE6BB940bE3F8e42ece2382EBb0A1Ea21eb1420d |
| SnobF3YakAdapterV0 | 0x592E3D359E4A8Ed5f08f38806B1b7f70AA3DB4F2 |
| SnobS3YakAdapterV0 | 0x87E6989A7AB5C707608Fd6773Fe32413871F4C8e |
| SnobS4YakAdapterV0 | 0x599610cf20379B5D21A4A3Ea84CB76E0F2a5f70f |
| SushiYakAdapterV0 | 0x3f314530a4964acCA1f20dad2D35275C23Ed7F5d |
| SynapseAdapterV0 | 0x364FD64a98bD60aA798Ea8c61bb30d404102E900 |
| TraderJoeYakAdapterV0 | 0xDB66686Ac8bEA67400CF9E5DD6c8849575B90148 |
| YakRouterV0 | 0xC4729E56b831d74bBc18797e0e17A295fA77488c |
| YetiYakAdapterV0 | 0x9a76D67e67aE285856846C2Fa080adEcE60CfC9A |
| ZeroYakAdapterV0 | 0x0EF5922f909374ccd7841a81F44ab109648b7ba5 |
npm i -D
cp .env.sample > .env
AVALANCHE_FORK_RPCis Avalanche C-Chain RPC provider that will be used for the tests [ testing ]AVALANCHE_DEPLOY_RPCis Avalanche C-Chain RPC provider that will be used deployment [ deployment ]PK_DEPLOYERis private-key for the account that will deploy contracts [ deployment ]
npx hardhat test
npx hardhat deploy --network {your network}
This project is in alpha stage and is unaudited. Use at your own risk. Report bugs to Telegram admins
Project is licensed under GPL-3, although some parts of it might be less restrictive. Copyright© 2021 Yield Yak