Token Launch Sniper (EVM)

An EVM-native token sniping bot that monitors factory contracts for new pair creation events and executes buy orders in the earliest possible block.

Detection Engine:

• Monitors Uniswap V2/V3 factory PairCreated events
• PancakeSwap factory monitoring
• Mempool scanning for pending addLiquidity transactions
• New contract deployment detection + auto-analysis
• Configurable chains: Ethereum, Base, BSC, Arbitrum

Anti-Rug Protection:

• Contract source code analysis (honeypot detection)
• Tax simulation — detect buy/sell tax before trading
• Liquidity lock verification (check if LP is locked)
• Owner privilege checks (mint, pause, blacklist functions)
• Max wallet and max transaction limit detection
• Renounced ownership verification

Execution:

• Buy in same block as liquidity add (block 0 sniping)
• Flashbots bundle submission for private txns
• Configurable gas priority (max priority fee)
• Multi-wallet support for splitting buys
• Token approval bundled with buy for speed

Auto-Sell Rules:

• Take profit at configurable multiples (2x, 5x, 10x)
• Trailing stop-loss
• Time-based sell (dump if no pump within N minutes)
• Sell on liquidity removal detection
• Partial profit-taking (sell 50% at 3x, rest at 10x)

Monitoring:

• Real-time token/pair activity feed
• P&L per snipe with ROI calculation
• Win rate and avg return tracking
• Gas spent analysis
• Rug pull detection history (avoided losses)

Tech Stack:

• TypeScript + ethers.js v6
• WebSocket for mempool + events
• Flashbots ethers provider
• PostgreSQL for history
• React dashboard
• Docker Compose deployment