Fees and opening protection
Lots has a fixed permanent meme-swap fee and a temporary opening public buy fee. Gas and any component execution costs are additional. Transfers are untaxed.
Permanent trading fees
The creator selects 1–4% at launch. This rate is fixed thereafter. Sells always pay it; public buys pay it after the opening schedule ends.
There is no additional protocol launch-creation fee and no basket mint/redeem protocol fee. These exclusions do not remove gas, funding principal, component-market fees or price impact.
Opening public buys
The public buy fee starts at 90% and falls linearly over 50 actual Robinhood L2 blocks to the permanent rate. Approximately five seconds is an estimate, not the enforcement unit or a guaranteed wall-clock duration.
This is the total scheduled meme buy fee, not an additional 90% stacked on top of the permanent rate. The authenticated creator purchase within the launch transaction is the only fee exemption.
With n elapsed actual L2 blocks and permanent fee f in basis points:
n < 50: fee_bps = f + ceil((9000 − f) × (50 − n) / 50)
n ≥ 50: fee_bps = f
One basis point is 0.01 percentage points. The round-up is part of the specified schedule.
| Elapsed L2 blocks | Permanent 1% | Permanent 2% | Permanent 4% |
|---|---|---|---|
| 0 | 90% | 90% | 90% |
| 10 | 72.2% | 72.4% | 72.8% |
| 25 | 45.5% | 46% | 47% |
| 49 | 2.78% | 3.76% | 5.72% |
| 50 or more | 1% | 2% | 4% |
At a 90% fee, only a small part of the fee-bearing amount participates in the purchase before other costs and impact. Being first can therefore be extremely expensive. Read the executable fee, not just the launch timestamp.
The PRD requires actual L2 block numbering rather than Solidity's L1-derived block number. Robinhood documents this block-number distinction. Correct clock integration and the hook accounting required for a 90% fee remain validation items; these docs do not imply a standard reference initializer supports that rate unmodified.
First-30-second limits
For each authenticated final recipient, protected buys enforce both:
- Cumulative purchased meme tokens no greater than 5% of original issuance.
- Post-buy balance no greater than 5% of original issuance.
Each is 50 million original tokens. The creator purchase counts. Sells, transfers out and burns do not reset cumulative purchases. Incoming transfers may push a balance above the limit, but further protected buys then fail.
Both limits expire 30 seconds after launch and cannot restart. Their denominator stays the original billion after burns. A recipient limit is not proof of one person per wallet or prevention of coordinated buying.
The 50-block fee schedule and the 30-second limits are separate protections. One can have ended while the other remains active. Buybacks also respect applicable early caps.
Where fees go
All official-pool trading fees, including the opening fee, split 70% creator / 30% platform, in actual collected currencies.
| Example: $1,000 ordinary swap at 2% | Indicative amount |
|---|---|
| Total trading fee | $20 |
| Creator share | $14 |
| Platform share | $6 |
| Creator commits 50% of their share to buybacks | $7 committed; $7 claimable |
The opening creator purchase has no meme fee to split. There is no basket-creator share. Separate recipients claim independently from escrow, and a failing recipient must not block another recipient or swaps.
A rotation pays both applicable swaps. Fee-only drag is 1 − (1 − f1) × (1 − f2), before impact and gas. See rotation examples.
The integrated implementation must reconcile these approved shares with any external LP/protocol charges and dust. It must not silently add an undisclosed fee or reduce an approved share. Creator earnings covers claims and prospective wallet changes.