How infinitefamily works
A launchpad on Robinhood Chain where every coin is priced in the coin that came before it.
Most launchpads pair every new token with the same thing: ETH, SOL, or a stablecoin. infinitefamily does something different. The first coin is paired with the genesis coin. The second coin is paired with the first. The third with the second. Every launch becomes the currency of the next one, so demand for any link in the chain is demand for every link below it.
GENESIS ← #1 ← #2 ← #3 ← #4 ← …
You can still buy or sell any coin with plain ETH in one click. The site walks the chain for you.
What it is
- A smart contract on Robinhood Chain (an Ethereum layer 2 built by Robinhood; gas is paid in ETH) that enforces the chain rule: a new launch can only be paired with the most recent launch.
- A launch flow built on Doppler, the protocol Long.xyz uses. Every coin is born directly into a live Uniswap v4 pool with 100% of its supply on a price curve. No bonding-curve phase, no graduation, no migration. The pool a coin starts in is the pool it lives in forever.
- A website where anyone can launch the next link with an image and a name, and buy or sell any link using ETH.
How a launch works
- You pick a name, a ticker, and an image. The image and a small metadata file are hosted by the site.
- The site reads the current chain head and its price, and computes the starting price so your curve begins at a fixed market cap (default $5,000) and runs to $5,000,000.
- Your wallet sends one transaction. The contract checks you are pairing with the current head, mints exactly 1,000,000,000 tokens into a new Uniswap v4 pool against the head coin, locks the pool, wires the fee routing, and records your coin as the new head.
- Your coin is tradeable in the same block. From then on the next launch must pair with yours.
The launcher never needs to hold the previous coin. A launch costs gas only.
What the launcher controls, and what they don't
The launcher supplies four things: name, ticker, metadata URL, and the price range of the curve. Everything else is fixed in the contract and cannot be changed by anyone: total supply, 100% on the curve, no team allocation, no vesting, the fee schedule, the fee destinations, the pool lock, and the salt that determines the token address. Every link is the same shape.
The curve
Each pool is a Doppler multicurve pool: the whole supply is spread across a price range as concentrated liquidity, in the same layout Long.xyz uses.
| Portion of supply | Where it sits |
|---|---|
| 99.1% | the main curve, from the starting market cap up to the end market cap |
| 0.9% | a tail from the end of the main curve up to the maximum price |
Buying walks the price up the curve, selling walks it back down. Because the pool is permanent and locked, liquidity can never be pulled.
Anti-snipe window. For the first 10 seconds after launch the swap fee starts at 80% and decays to 1%. Bots that buy in the first block pay most of their purchase in fees, and all of it becomes permanent liquidity in the pool they sniped.
Fees: 1%, all of it back into the pool it came from
Every swap on every link pays a 1% fee. No creator cut, no platform cut, no treasury. The fee hook takes the 1% and immediately adds it back into the same pool as full-range liquidity that nobody can ever withdraw. It happens inside the swap transaction, automatically. Every trade on a coin makes that coin's pool deeper, and because buying any link crosses every pool below it, deeper pools everywhere are what let the chain keep growing.
| When | Swap fee | Where it goes |
|---|---|---|
| First 10 seconds after launch | 80% decaying to 1% | permanent liquidity in that pool |
| After that, forever | 1% | permanent liquidity in that pool |
Doppler's hook keeps 5% of hook fees for the protocol; the other 95% is compounded. There is no keeper, no trigger, and no address that can move any of it.
Buying and selling with ETH
Nobody wants to hold coin #3 just to buy coin #4. The Buy button does the whole route in one transaction through Uniswap's Universal Router:
buy #4: ETH → GENESIS → #1 → #2 → #3 → #4 sell #4: #4 → #3 → #2 → #1 → GENESIS → ETH
- The quote comes from the on-chain quoters for every hop, and the router enforces a minimum output. You can never receive less than the number the site showed minus the slippage you accepted.
- Multi-hop buys pay the 1% in each pool they cross, and each pool keeps its own share as liquidity.
- Auto slippage is the default. The site measures the route's price impact and sets a tolerance from that, the number of hops, and whether the target pool is still in its anti-snipe window. You can override it.
- Selling needs a one-time approval per coin, then a free signature each time.
Why deeper links cost more
Every hop is a real trade in a real pool, so each one adds gas (fractions of a cent on Robinhood Chain), the 1% fee, and price impact in every intermediate pool. Buying #4 pushes the price of #1, #2 and #3 as well, and deepens all three pools. That is the point of the design, but it also means long chains get more expensive to enter. Think of a chain as a season of a handful of links.
Prices
DexScreener and GMGN index Robinhood Chain and show every link once it has traded. For a brand-new link they cannot price yet, the site reads each pool and multiplies down the chain to the genesis coin, whose dollar price is known. That is why a coin launched ten seconds ago already shows a market cap here.
What can and can't happen
| Can the chain rule be bypassed? | No. The contract rejects any launch not paired with the current head. |
| Can a launcher give themselves tokens? | No. 100% of supply goes to the pool; supply and vesting are fixed. |
| Can liquidity be removed? | No. Pools are locked with no migration path. |
| Can the pad owner touch pools or tokens? | No. The owner can pause new launches, change the fee destination, and withdraw launch fees. Nothing else. |
| Two people launch at once? | The second fails because the head moved. They retry, now pairing with the winner. |
| Do coins migrate or graduate? | No. Same as Long.xyz: the launch pool is permanent. |
Numbers at a glance
| Chain | Robinhood Chain, id 4663, gas in ETH |
| Supply per coin | 1,000,000,000, all in the pool |
| Starting market cap | $5,000 |
| Main curve ends | $5,000,000 |
| Swap fee | 80% → 1% over the first 10 s, then 1% |
| Where fees go | 100% compounded into the pool they came from, locked forever |
| Creator's cut / platform cut | none |
| Launch cost | ~2M gas, under a cent today |