How it works
Launch
One transaction does everything: your coin is deployed, its Uniswap v3 pool is created, and the full 1,000,000,000 supply goes into a one-sided liquidity position whose NFT is locked in RainFeeLocker — all in the same block. Name, ticker, image, description and links are sealed inside the token contract itself, forever. The launch fee is 0.001 ETH; anything you send on top becomes an optional initial buy, executed atomically — and nobody else can buy in the launch block, so you can't be front-run at your own opening price. No presale, no team allocation.
Trade from block one
There is no curve phase — every buy and sell is a real Uniswap v3 swap against the locked pool, right in the rain.fun terminal (routed through the stateless RainSwapper contract, which always derives the pool from the DEX factory and never holds funds between transactions). The pool charges a 1% fee on every swap. Anti-snipe: for ~30 minutes after launch each buyer is capped at 2% of supply per wallet (2.2% cumulative pool buys); the cap counts per end user even through routers and aggregators, and a buy that would cross it partially fills and refunds the extra ETH in the same transaction. Sells and transfers are never restricted.
Graduate
Graduation is a milestone, not a migration: the factory reads the locked position live, and when its paired ETH depth reaches 4.2 ETH the coin counts as graduated. Nothing moves, nothing pauses — trading continues in the exact same locked pool.
Locked forever, fees in ETH, burn on every claim
RainFeeLocker has no function to withdraw liquidity — collecting swap fees is the only action it exposes. On each claim the ETH side is unwrapped and paid out in native ETH, split 50/50 creator/protocol (a hard-coded constant with no setter), while the entire token side of the fees is burned — every claim shrinks the supply. Rug by liquidity pull is structurally impossible, from the very first block.
FAQ
Can the team pull the liquidity?
No. RainFeeLocker holds the LP NFT and exposes exactly one action: collecting swap fees. There is no withdraw, decrease, or transfer for the position — not even for the contract owner. The source is verified on the explorer.
Can the platform change the rules of my coin?
No. Supply, the pool, the anti-snipe window, the sealed metadata and the 50/50 fee split are fixed at launch — the split is a hard-coded constant in the locker's bytecode with no setter. The only thing that can ever change is the wallet receiving the creator half of the fees, and only the creator can change it. Owner configuration on the factory affects future launches only.
Can trading be paused?
No. Trading is plain Uniswap swaps against a locked pool — nobody can pause buys or sells, ever. During the ~30 minute launch window buys are size-capped per wallet; sells are always free.
Do I need an account?
No. rain.fun is wallet-only: connect your own wallet (browser extension or WalletConnect) and trade — the platform never holds your funds or keys. A one-time sign-in signature is requested only for social actions like commenting or favoriting; trading never asks for it.
How do creator fees work?
Every swap pays a 1% pool fee. Half of the ETH side belongs to the coin's creator for the life of the coin — sealed in bytecode, it can never be changed. Claim any time with RainFeeLocker.collectFees(token): the payout is native ETH (you or your fee wallet can call it), and the token side of the claim is burned. You can point the creator half at any wallet — a team multisig, your artist — at launch or later.
Why does the supply shrink over time?
Trading fees accrue in both ETH and the coin itself. On every fee claim the coin side is sent to the burn address in full — creators are paid exclusively in ETH — so each claim permanently reduces the circulating supply.
Is metadata editable after launch?
No. Name, symbol, image, description and links are sealed on-chain at launch and are permanent.
Transparency
Every contract is verified on the block explorer. The protocol owner cannot touch user funds, launched tokens, or locked liquidity.
- RainLaunchFactory
- 0xE67BeF2a23384E05139184c76b0A77F2e9AcB29f ↗
- RainFeeLocker
- 0x57086Be6D8009c23D817a387Bfeb91ecF02A66D3 ↗
- RainSwapper
- 0xD5adc179B5F9a1E2aB2e398b84881c71918c0529 ↗
- Chain
- Robinhood Chain (id 4663)
- DEX
- Uniswap v3 (1% tier), one-sided LP locked in RainFeeLocker from block one
- Graduation
- display milestone at 4.2 ETH pool depth (~17x open mcap, ~$59k)