Lux Docs

DeFi precompiles implement a complete financial stack as native EVM operations, achieving sub-microsecond execution latency.

DEX (Uniswap v4-Style)

Address	Name	Gas	Description
`0x0400`	PoolManager	50,000	Singleton AMM with flash accounting
`0x0401`	SwapRouter	10,000	Optimized swap routing
`0x0402`	HooksRegistry	3,000	Custom hook contracts
`0x0403`	FlashLoan	5,000	Flash loan facility

Flash Accounting

All operations within a transaction are netted. Token transfers happen only at the end, reducing gas costs for multi-hop swaps.

// Inside lock callback:
BalanceDelta delta = IPoolManager(0x0400).swap(key, params, hookData);
IPoolManager(0x0400).settle(currency0, amount0);
IPoolManager(0x0400).take(currency1, recipient, amount1);

Hook capabilities are encoded in the hook contract address (first 2 bytes). Available hooks: BeforeInitialize, AfterInitialize, BeforeSwap, AfterSwap, BeforeAddLiquidity, AfterAddLiquidity, BeforeDonate, AfterDonate.

Lending (Alchemist)

Address	Name	Gas	Description
`0x0410`	LendingPool	15,000	Supply/borrow with collateral
`0x0411`	InterestRate	5,000	Dynamic interest rate curves
`0x0412`	Liquidator	50,000	Liquidation engine

Perpetuals

Address	Name	Gas	Description
`0x0420`	PerpEngine	25,000	Perpetual futures (up to 1111x leverage)
`0x0421`	FundingRate	10,000	Funding rate calculation
`0x0422`	InsuranceFund	20,000	Insurance and auto-deleveraging

Liquid Staking

Address	Name	Gas	Description
`0x0430`	LiquidVault	20,000	Self-repaying loans (90% LTV)
`0x0431`	LiquidFx	25,000	L-token to underlying conversion
`0x0432`	LiquidToken	5,000	Liquid token registry (LUSD, LETH)
`0x0433`	YieldRouter	30,000	Yield strategy routing

Cross-Chain

Address	Name	Gas	Description
`0x0440`	TeleportBridge	50,000	Cross-chain transfer engine
`0x0441`	OmnichainRouter	40,000	Multi-chain liquidity routing

DeFi Precompiles