Gas And Fees
A source-aware briefing for checking the record before you act.
A source-aware briefing for checking the record before you act.
Gas pays for computation, not for success. A reverted transaction can still burn money.
Start with public records
Ethereum explains gas as the unit of computational effort required to execute operations. You pay for the work performed even when the transaction ultimately fails.
Source note
On swap interfaces, Uniswap notes that failures commonly come from slippage limits, insufficient native-token balance for network cost, expired deadlines, and unsupported token mechanics.
Source note
The fee model is predictable enough that surprises usually mean the operator skipped a check.
Primary sources
This is educational information only. It is not financial, legal, or investment advice. Always do your own research and verify everything yourself.
How to use this guide
Compare the source you plan to use against this briefing. Confirm it independently, and stop if the public record does not match the message.