KOLs Tracker monitors in real-time purchases from 400+ KOL (Key Opinion Leaders) wallets on pump.fun. When multiple KOLs buy the same token, the system generates instant alerts via Server-Sent Events. Configurable filters for ATH (min/max) and minimum KOL buyers threshold help identify promising tokens.

Architecture: Helius webhook for enhanced Solana transactions, Flask server with REST API, SQLite for persistent storage, historical backfill with per-day tracking. Web UI with alert dashboard, blockchain explorer, KOL wallet management. Webhook latency ~1-5 seconds from on-chain transaction.