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Both AVNU and Ekubo support private swaps through Chance. They also support swaps from a public Starknet balance.
Swap 3 USDC from my private balance to STRK. Compare AVNU and Ekubo, and keep the result private.
The Desk compares the routes for your amount and privacy choice. The quote includes the expected output, minimum received and applicable fees. On Ekubo, it also checks the executable quote against the router.

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Keep the result private

A private swap returns the proceeds and change to your private balance. If that route fails, the agent must not substitute a public swap. The trade uses public liquidity. Its amount and token pair can be visible even though the route hides the link to your spending wallet. See What stays private.

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Price movement

The default price tolerance is 1%. If you request a lower tolerance, it is preserved. This sets the maximum allowed movement from the quote; it is not an extra fee. Private swaps need a proof before submission. If the quote or proof expires, the agent can prepare a fresh one within your original amount, privacy choice and limits.

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If a swap fails

The Desk passes a contract’s failure reason to the agent where available. It can retry a recoverable problem with a fresh quote or proof, up to two repair attempts. An uncertain submission is checked first so a lost response does not become a second swap.