Aggregatoor

How this board is built

Every source this page holds is asked at the same moment for the same trade — SushiSwap V3 only when you pay with ETH — except one that is in rate-limit backoff, which is skipped rather than asked, and named in the sources panel. Nothing here is an estimate of an estimate: each figure is either something this page ran against the chain, or is marked as the source’s own claim.

The adjustments, and why each one is defensible

Gas is subtracted

A route’s output is worth what is left after it is paid for. Gas is converted into the receive token and subtracted on every pair, so a cheap route and an expensive one are compared on the same column. A source’s own site usually shows the figure before gas, which is why ours can read lower than theirs.

Their declared fee is shown, not subtracted

Where a source states its own cut, that number is printed in the AGG FEE column and left alone. It is not taken off their figure, because for most sources the output they quote already has it removed and subtracting it again would count it twice — and we have not established that one way or the other for every source on this board. The one exception is a fee a source itself marks as charged on top of its figure (LI.FI does), which is taken off.

Their transaction is run, and the measured figure wins

Any source that hands back executable calldata has it eth_called here before ranking. If the transaction returns less than the quote claimed, the measured number is the one shown and the gap is stated on the strip.

Direct DEXs are asked too

The DEX routers people swap on directly (Uniswap V2, SushiSwap V3) are quoted as their own sources, measured against their own contracts — a V3 router by running its swap, a V2 pair from its reserves and its fixed 0.3% rule. They are compared, not executed here, and they usually lose to a routed trade; they are on the board so you can see that they were checked. The board shows the top few routes that fit the screen; the full list of who was asked and who answered is in the sources column.

A route that cannot execute cannot lead

It still appears, with its number and the reason. It simply may not take the top slot, because a figure nobody can execute is not a price.

Paying with a token

An ERC-20 has to be approved before a router may spend it. The first time you pay with a token through a given router, this page asks your wallet to approve that router for that token, for exactly the amount of that swap and nothing more, so no standing allowance is left behind. Each swap paid with a token therefore takes two signatures: the approval, then the swap. It waits for the approval to confirm, then simulates the swap and asks for the second signature. Until you have approved, a rival’s route reads unchecked rather than won’t run: a transaction that fails for want of your approval says nothing about their routing.

A source that reports no gas is held to the worst case

Where a source will not say what its route costs to run and hands us no transaction we could measure ourselves, we give that row the highest gas figure anyone on this board reported, and the strip says gas not reported — worst case. That number is ours, not theirs. It is the floor we hold an unreported route to, it is never used to work out our own fee, and a source can remove it at any time by reporting its gas.

What is not done

No source is marked down for being a competitor. Where we could not run a route's own transaction, its figure is the source's claim — and if we have measured that source over-claiming in the past, we take that measured median off its number before ranking it. That correction is only ever a figure we measured by running their own quoted transactions against the chain (Nordstern: 992 of them), never one we chose, and it is the only penalty on this board that is not simply gas.

Recent swaps on this device

• none yet

The fee

Charged only out of the amount by which our own route beats the best rival, on the same net column the board ranks. If we do not beat them it is zero.

Disclaimer

Aggregatoor is an information tool, not financial advice, and nothing here is a recommendation to trade. We are non-custodial: we never hold your funds or your keys, and every transaction is signed by you, from your own wallet. When the best route is another service’s, the transaction you sign is theirs — it runs under their contract and their slippage floor, not ours. Quotes are readings taken at a block and move with the chain, so what you receive is settled when you sign, not when you look. The ranking is our own measurement and method. Use at your own risk: no warranty, and we are not liable for any loss.

This disclaimer was last changed on 22 September 2026.