Paste a Uniswap v3-style pool and find out what it will actually cost you — before you
send anything. Read from the pool's own storage at this block, never from an index. No wallet, nothing
signed.
Gas is fixed per trade, so it is a bigger share of a small one — the same pool can
be fine at 1 ETH and hopeless at 0.01. That is why the size selector sits next to the address.
THE REAL FILL · WALKED DOWN THE POOL'S OWN CURVE
SIZE
YOU GET
AVG PRICE
SLIPPAGE
ROUND TRIP
Not a spot price — the pool's own arithmetic, tick by tick, including the part of the
curve your order eats.
THE BOOK · WHERE MONEY IS ACTUALLY WAITING
BAND
BID DEPTH
ASK DEPTH
A range entirely on one side of spot holds one asset, so it can only trade one way —
a limit order somebody placed with real money and did not announce.
⛔ Why this exists. A pool can accept your swap, succeed, and return almost
nothing. Measured on Base: $9.57 in, $2.15 out — successful receipt, no revert. Nothing warns you.
⚠ Exact for this pool at this block. It reads the chain; it does not predict it. Not
financial advice. Built by a card and game studio — the same instruments run our
market terminal.