Live on Bitkub ChainContracts verified on KubScan

Fixed-rate swaps.Zero slippage, ever.

Dongkii pairs lock their exchange rate the moment liquidity is first added. No price curve to move against you — a 1,000-token trade clears at exactly the same rate as 1.

Launch app

Flat 0.001 KUB service fee per 100-token step · Bitkub Chain

Illustration — not live market data

Live on-chain

Fixed-rate pairs

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Recent swaps

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Swap→

Trade at the locked rate. The quote you see is the price you get — no curve, no surprises.

Pool→

The first deposit sets a pair's rate forever. Add liquidity in ratio, withdraw pro-rata.

Wrap→

KUB to KKUB and back in one click, 1:1. Wrap the native coin to trade it.

Ready to trade at a rate that holds?

Connect a wallet and swap in a few seconds — or add liquidity and set the rate for a new pair yourself.

Launch app Provide liquidity