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Fees

The trading fee is the only value extractable from a launch: the quote asset buyers pay for tokens stays locked in the position forever. The fee has one constant and one variable:

  • The house takes 0.10% of every trade’s volume. Always has (since gen-3), on every chain the launchpad runs on.
  • Everything a trade pays beyond that goes to the coin’s creator, or is burned. Nothing else has a hand out.

Both are immutable per coin: the numbers are constructor arguments on ownerless contracts with no setters. A coin keeps the deal it launched with, forever.

What a trade pays

Section titled “What a trade pays”
  • Buys pay 0.25% of the quote, flat, forever: 0.10% of volume to the house, 0.15% to the creator.
  • Sells pay the same 0.25% quote leg, split the same way, plus a burn: an extra rate taken in the launch token itself and destroyed. Nobody receives the burned leg: not the creator, not the house. It is permanent supply reduction of the coin being sold.

The burn rate starts high at launch and decays linearly by block to a permanent floor. The creator picks one of three fixed curves at launch (the totals below include the 0.25% quote leg):

Preset Sell fee at launch Permanent floor Decay window
Standard (default) 5% 1% 43,200 blocks (~72 min)
Chill 2% 1% 43,200 blocks (~72 min)
Diamond 10% 1% 86,400 blocks (~2.4 h)

At the floor, a sell pays 1% total: the 0.25% quote leg plus 0.75% burned. The curve table is baked into the hook: a launch can pick an entry, never invent one, and the hook’s immutable maxFee ceiling (10%) bounds everything. Every launch emits a LaunchManifest event with its exact terms, so the numbers a coin page shows are read from the chain, not from marketing copy.

Why this shape: it makes launch-window dumping expensive (and deflationary for the coin when it happens) while keeping buys and steady-state trading cheap: 1% round-trip once the curve settles.

Claiming fees

Section titled “Claiming fees”

There is nothing to claim. The hook takes the fee at swap time, accrues it per pool, and releases it to the creator and the ops treasury; the burn leg is destroyed, never accrued to anyone. Position principal is never moved (invariant L2): fee flow can never touch locked liquidity.

Earlier generations

Section titled “Earlier generations”

Coins from earlier factory generations keep the economics they launched with: the same 0.10% house take, a flat 1% fee with 0.90% of volume to the creator (and, on the very first generation, a buyback leg). All of it still runs and still pays out. See Earlier generations.

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