TRC20 fee quote - measured on chain (TRON)
https://a01-139-59-46-185.sslip.io/v1/trc20-fee-quoteOverview
What a USDT (TRC20) transfer on TRON actually costs, from TronGrid receipts rather than documentation. Base energy 14,650 if the recipient holds USDT, 29,650 if their slot is empty; penalty ratio 3.3881x measured identical across 99 transfers in 4 samples; 6.43 or 13.03 TRX billed when the sender has no energy. Corrected in public twice; every number reproducible.