MEV Module¶
Maximal Extractable Value (MEV) bots — arbitrage, sandwich attacks, and liquidation.
Arbitrage Bot¶
Find and execute cross-DEX arbitrage opportunities.
from web3_agent_kit.mev import ArbitrageBot
bot = ArbitrageBot(
chain_manager=chain_manager,
wallet=wallet,
min_profit_usd=5.0,
max_gas_usd=2.0,
)
# Scan for opportunities
opportunities = bot.scan()
for opp in opportunities:
print(f"{opp.pair}: ${opp.estimated_profit:.2f} profit")
# Auto-execute profitable ones
bot.run()
Configuration¶
from web3_agent_kit.mev import ArbitrageConfig
config = ArbitrageConfig(
dexes=["uniswap", "sushiswap", "aerodrome"],
pairs=["WETH/USDC", "WETH/USDT", "WBTC/WETH"],
min_profit_usd=5.0,
max_gas_usd=2.0,
use_flashbots=True, # Submit via Flashbots to avoid frontrunning
)
bot = ArbitrageBot(config=config)
Liquidation Bot¶
Monitor and liquidate undercollateralized positions.
from web3_agent_kit.mev import LiquidationBot
bot = LiquidationBot(
chain_manager=chain_manager,
wallet=wallet,
protocols=["aave", "compound"],
)
# Monitor for liquidatable positions
bot.start(callback=lambda pos: print(f"💧 Liquidatable: {pos.user}"))
Flashbot Support¶
Submit bundles directly to block builders to avoid public mempool.