What did that transaction really cost?
Paste a transaction hash. We'll find it, price the gas (including L2 data fees), and tell you if it went through a router that embeds a convenience fee — like the 0.875% built into wallet swap buttons.
We scan Ethereum, Base, Arbitrum, OP Mainnet and Polygon automatically. Solana support is next.
What we can spot
- • Gas actually paid — including the L1 data fee on Base and OP Mainnet that most interfaces hide.
- • Failed transactions — gas paid for nothing, the most common invisible fee.
- • Convenience-fee routers— MetaMask's swap router (0.875% embedded), plus recognized aggregator and bridge contracts.
Coming next sprint: Solana receipts, swap-size decoding for exact skim amounts, and a whole-wallet fee audit.