Get real-time crypto buy/sell activity from Smart Money wallets, KOL influencer wallets, and personally followed wallets via GMGN API — alpha signals, whale tracking, meme token copy-trading ideas on Solana, BSC, Base, or Ethereum. Use when user asks what smart money or KOLs are buying, wants whale alerts, on-chain alpha, or copy-trade signals. (For a specific wallet address, use gmgn-portfolio.)