Swap

BullBearSwap Smart Routing Algorithm searches routes, compares with top DEX aggregators, and automatically gives you the better outcome.

We compare against top DEX aggregators
Swap Surplus Orders (soon) Limit Orders (soon)
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Rate-
Network Fee ⓘEstimated cost of submitting this swap on-chain. Shows "Gas not simulated" until a transaction-specific simulation exists, rather than inventing a number. Paid in gas by your wallet — it is never subtracted from the quoted amounts.-
Price Impact ⓘYour output measured against what independent on-chain oracle prices for both tokens imply you should get. Positive means you received MORE than implied, negative means less. Information only — it never blocks a quote.-
SlippageAuto
Minimum received-
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Smart Routing Algorithm activeComparing with top DEX aggregators
BullBearSwapSmart Routing
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CoW Swap
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1inch
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Velora
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Swap

Always the Best Rate

BBS searches across many DEXs to get you the best possible rate.

No Extra Cost if Others Win

If another aggregator gives a better rate, BBS routes there for free.

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More Than the Best Rival When BBS Wins

When our route is best, the extra above the best rival is split 50/50, capped at 6% of your output.

Powered by Smart Routing Algorithm

Proprietary algorithm compares thousands of routes in real time.

Why users win more

Beat the Best Rival, or Pay $0 Fee

BBS only earns from value we create above the best verified competitor.
BullBearSwap optimizes the trade around you.

No Partner Cut From Your Output

Many aggregators promote partners or referrals in ways that can reduce the user’s final output. BullBearSwap does the opposite. If another aggregator wins, we route there for absolutely no BBS fee.

If another aggregator wins, you still get the best route for $0 BBS fee.
When BBS beats the best rival, the extra above it is split 50/50 - capped at 6% of your output. The fee is set from the quote-time comparison. Prices can move before your transaction is mined, so the amount you receive can differ from the quote.
Typical model
Aggregator quote → Partner / referral cut → User gets less
BBS model Fee only from the extra
Beat the best rival → Extra split 50/50 → You keep half the extra
✓ No hidden cut. No referral tax. Rival wins = $0 BBS fee.

100% Lucky Slippage Goes To You

When execution improves after your quote, many systems keep some or all positive slippage. BullBearSwap returns 100% of that extra surplus to the user.

It is not part of the quote. It only appears after the swap is executed. The BBS fee is fixed when you get your quote, so anything the chain delivers above it stays with you. With sign & relay (Ethereum only), the network gas is paid from the output (capped, shown before you sign).

Quoted 1,000. Received 1,006?
The extra 6 is yours. All of it.
Quote1,000
⟶
Executed ↗1,006
⟶
Received1,006
+6 surplus to user
Why our fee is capped at 6%

When our routing wins big, you win bigger

On thin, low-liquidity tokens our routing can beat the best rival by 20% or more. A straight 50/50 split would make our fee large on exactly those trades, so we cap it at 6% of your output. Everything above the cap stays with you. We earn less on those trades - on purpose.

A real swap on PulseChain: 107 USDC → ALAMO
Piteas quoted261,370
PulseX quoted261,338
BBS delivered317,879+21.6% more ALAMO
Without the cap, our half would have been about 38,300 ALAMO. The cap held it to 20,287 (6%) - so about 18,000 more ALAMO stayed with the user.
See the transaction on PulseChain ↗
BBS only wins when the user wins.

Settlement contracts: Ethereum 0x0Db4…4b2B PulseChain 0x79E9…eC3d Security review