Fees, precisely

What a launch and a trade cost, which amounts fees apply to, and where they go.

FX separates launch fees, protocol trading fees, native liquidity fees, and optional creator or holder allocations.

The figures below describe V6 revision 6, deployed on Arc mainnet. See release status for current availability and deployed contracts for the release identity.

Creation fee

Every successful launch pays 10 USDC, including the dedicated official $FX launch.

Allocation	Amount
Reserved for $FX market purchases	9 USDC
Operations	1 USDC

Network gas is additional. Supply and starting valuation do not change the creation fee.

Trading fees

These are nominal rates per launched-token pool leg, on both buys and sells. One basis point, or bp, equals 0.01%.

Market	Protocol	Creator	Holder rewards	Native LP	Nominal baseline
FX-pair token pool	0.10%	0	0	0.05%	0.15%
Ordinary single-currency pool	0.10%	0–10%	Off, or 0.03%–10%	0.20%	0.30% + creator + holder
Dedicated official $FX/USDC	0.10%	0.50% to the revenue vault	0	0.20%	0.80%

Ordinary creator and holder rates are fixed at launch. FX-pair markets and the dedicated $FX market have holder rewards disabled.

The table adds nominal rates for comparison. Hook fees and native LP fees can use different bases, so the sum is not an exact deduction from one common amount.

The fee bases

FX’s hook collects protocol, creator, and holder fees in the pool’s quote currency.

• Buy: ordinary hook fees apply to gross quote input.
• Sell: ordinary hook fees apply to gross quote proceeds before hook deductions.
• Exact output: the required amount is grossed up to account for the deductions.

The native pool charges its own fee on the asset entering that pool. On a token purchase, that is the quote currency remaining after hook deductions. On a sale, it is the launched token.

Ordinary ERC-20 transfers do not carry a launchpad trading tax.

A 1,000-USDC example

Consider a direct purchase of official $FX after the opening surcharge has expired, with no additional Uniswap core protocol fee:

Gross USDC input                        1,000.000
Hook fees: 0.10% + 0.50%                    6.000
USDC remaining for the native pool       994.000
Native LP fee: 0.20% of 994                 1.988
Combined fee deduction                     7.988

This is 7.988 USDC, rather than exactly 8 USDC. Price impact and integer rounding also affect execution. The quoter’s per-leg amounts are the useful values for an actual order.

Additional route costs

Cost	When it applies
Opening buy surcharge	Purchases during a launch’s configured opening window
External currency-pool fee	Each time a route uses that currency pool
Uniswap core protocol fee	When enabled by the underlying PoolManager’s controller
Network gas	The transaction submitted to the network

FX adds no separate router or quoter surcharge.

A cycle with two FX token legs and a 0.05% currency hop has a nominal cost of 0.15% + 0.15% + 0.05% = 0.35%, before any opening surcharge, core fees, gas, or price impact.

Where the fees go

Fee	Destination
FX protocol fee	Collected as protocol revenue; eligible realized USDC enters the 90/10 split
Opening surcharge	Entirely protocol revenue; eligible realized USDC enters the same split
Ordinary creator fee	The launch creator
Ordinary holder reward fee	That token’s eligible holders, through its reward ledger
Official $FX creator allocation	Permanently attributed to the revenue vault
Canonical locked LP fees	Available to compound into that locked position
Other LP and external currency fees	The corresponding liquidity providers or venue controller

Creator claims, holder rewards, and LP principal are separate from protocol revenue. Foreign-currency protocol fees enter the revenue split only after conversion into actual received USDC.

The opening window

Understand the temporary buy surcharge.

$FX and protocol revenue

Follow the 90/10 split from receipt to market purchase.