Create a Liquidity Pool on Ink and Make Your Token Tradeable on Uniswap

ETH you need for an Ink pool: fee, gas and deposits

Every cost of a new liquidity pool on Ink, and who receives it. The Tokenry fee is 0.005 ETH, paid in the pool transaction, and Tokenry receives it. Gas is paid in ETH to the network: an execution fee plus a security fee (the L1 data fee) for publishing to Ethereum (Ink docs). Your deposits are your token plus ETH or USDC, in the amounts you choose, and they go to the new pool, not to Tokenry. A first buy is optional: it is the amount you choose, with no Tokenry fee, spent in the new pool for your token. Burn or lock is optional too, with no Tokenry fee; gas applies.

With an ETH pair, your wallet sends the fee, the ETH deposit and any first buy in the pool transaction. Keep ETH for gas on top of that, including the security fee, which Ink's docs say is generally the larger part. Any approval adds its own gas.

If the transaction fails on-chain, nothing changes, but the gas is still spent.

How the 3 Uniswap versions differ on Ink

Each Uniswap version on Ink gives your pool a different swap fee, price range and kind of holding.

Uniswap v2 has a 0.3% swap fee, covers every price with no range to set, and gives you LP tokens.

Uniswap v3 offers 0.01%, 0.05%, 0.3% or 1% as the swap fee (0.3% pre-selected), a full range or a custom range, and gives you a position NFT.

Uniswap v4 offers 0.01%, 0.05%, 0.3% or 1% in the tool (1% pre-selected), a full range or a custom range, and gives you a position NFT.

A token with a tax needs v2 with ETH. A fee tier or a custom price range needs v3 or v4. A lock that keeps your fees claimable needs an Ink Uniswap v4 pool.

The swap fee goes to the liquidity providers whose liquidity is in range when a trade happens, less any Uniswap protocol fee (Uniswap docs). A custom range on v3 or v4 earns nothing while the price is outside it.

On an ETH pair you deposit native ETH on every version. A v4 pool keeps it as ETH, while v2 and v3 pools hold it as WETH.

Set the opening price of your pool

The opening price of a new pool on Ink is the pair-side deposit divided by the token deposit. For example, 1,000,000,000 tokens and 1 ETH open the pool at 0.000000001 ETH per token. The same tokens with 2,000 USDC open it at 0.000002 USDC per token. These numbers are arithmetic, not a recommendation.

Each pair, Uniswap version and fee tier is its own pool, with its own price and liquidity. So an ETH pool and a USDC pool for your token are 2 separate pools.

If the pool already exists, the tool adds to it at its current price instead of setting a new one. To top up a pool later, add liquidity on Ink.

What burning LP or locking a v4 position does on Ink

Burning LP or locking liquidity on Ink is off by default. When you turn it on, the result depends on the version. On v2, the LP tokens are burned. On v3, the position is burned, and its fees can no longer be claimed. On v4, the position is locked forever, and you can still claim its swap fees.

Either choice is permanent: nobody, you included, can ever withdraw that deposit. Before you continue, the tool asks you to tick "I understand this cannot be undone."

The v4 lock is a contract made for your position. Claiming its fees costs gas only, with no Tokenry fee: claim pool fees on Ink.

If you keep the liquidity instead, it stays in your wallet, and you can add to it or remove it later.

Buy first in the pool transaction

A first buy at launch is optional in the Ink liquidity pool creator. You enter an amount in the coin the pool pairs with, such as ETH or USDC.

The buy runs in the same transaction as the pool creation, from the new pool, right after your deposit goes in. After the buy, the price is above the opening price you set. On v3 and v4, a first buy needs a price range that includes the opening price.

Up to 10 of your other wallets can also buy right after the pool transaction confirms. Each buys in its own transaction, with its own funds and gas in ETH. Their keys stay in your browser and are never sent to Tokenry. A wallet skips its buy if the price moves past the limit you set.