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Fees

Reiy collects fees only when an settles successfully. If an intent expires, is cancelled, or does not fill, the trader does not pay settlement fees.

What fees include

ComponentMeaning
Volume feeA small percentage of trade amount.
Surplus feeA share of surplus above the user’s protected minimum, capped by protocol parameters.
Total fee capA hard cap limiting the total fee per intent.
Solver fee shareThe part of total fees paid to the solver; the rest goes to the protocol FeeVault.
Fees are deducted from the settlement payout. The protocol verifies before settlement can complete.

Typical defaults

ParameterDefault
Standard volume fee0.0075% of trade
Correlated volume fee0.001% of trade
Surplus fee10% of surplus
Surplus fee cap0.1% of trade
Max total fee0.15% of trade
Solver fee share35% of total fee
For exact formulas and caps, use the technical reference.

Fee formulas

Review exact protocol fee calculations.

Make a trade

See the trader-facing fee flow.
Last modified on June 23, 2026