EIP-1559

EIP-1559 is the fee-market change that splits transaction fees into a protocol-set base fee that is burned and a priority tip paid to the validator.

Before EIP-1559, users blindly bid gas prices in a first-price auction. The upgrade introduced a base fee set by the protocol per block that adjusts with demand and is burned rather than paid out, plus a priority fee tip that rewards validators. Senders specify a max fee and a max priority fee, and the wallet computes the effective price. This made fee estimation more predictable and reduced overpayment. Our decoded transaction data surfaces base fee, priority fee, and effective gas price per transaction, and archive queries let you reconstruct historical base fees per block.