Create a Liquidity Pool on Arbitrum One

Choose a Uniswap version, give the tool your ERC-20 address, pick ETH or USDC as the quote token, and enter how much of each to deposit. That ratio becomes your token's opening price. One signature creates the pool, funds both sides, optionally buys in for you, and disposes of the LP however you asked. The pool is live on Uniswap the moment it confirms.

A liquidity pool is a smart contract that holds the tokens on both sides of a market, which lets anyone swap one for the other on a decentralized exchange without needing a counterparty. Its price comes from the ratio of tokens in the pool, so a purchase takes some of one side out, puts the other side in, and shifts the price. Anyone who deposits becomes a liquidity provider and earns a cut of every swap in proportion to their share of the pool.

Yes. A deployed ERC-20 with no pool has no price and nowhere to trade. Creating the pool is the step that turns a token contract into something people can buy, and there is no application or approval anywhere in that process on a DEX.

Uniswap, on Arbitrum One, and you pick between v2, v3 and v4. That is where essentially all new listing activity on the chain happens: counting pool creation events over a recent 30-day window, Uniswap's three versions accounted for roughly 97% of every new pool on Arbitrum, and it holds about two thirds of the chain's DEX liquidity and around three quarters of its trading volume. You can also open a Uniswap pool through Uniswap's own interface, which costs nothing beyond gas, but you sequence the approval, the opening price and your first buy yourself.

On Arbitrum, real launches still mostly land on v3, with v4 second and growing. v2 is the simplest option and gives you a fungible LP token. v3 concentrates your deposit into a chosen price band and is the most common choice here. v4 keeps every pool inside one shared contract, which makes it dramatically cheaper to open, and it is the only version where a permanent lock still pays you the trading fees. One reassurance about v4: hooks are optional and the overwhelming majority of v4 pools on Arbitrum use none at all.

The standard advice is 0.3%, but that is not what Arbitrum actually does. Looking at new Uniswap v3 pools opened on Arbitrum over a recent month, the large majority opened at the 1% tier rather than 0.3%, which fits a chain where most new pairs are thin and volatile enough that liquidity providers want paying properly for holding them. 0.3% remains reasonable if you expect steady two-way flow. On v4 there is no fixed tier list at all, so the options offered here are our shortlist rather than a protocol constraint.

ETH by a wide margin. Among new Uniswap v3 pools on Arbitrum in a recent month, WETH was the quote token on the great majority of pairs, and the first buy works on ETH-paired pools. One quirk worth knowing: v4 pools hold native ETH directly rather than WETH, so there is no wrapping step there. If you want your base token priced in a stablecoin instead, use native USDC at 0xaf88...5831. Do not use USDC.e, the older bridged token, and be careful because this is a genuine trap: USDC.e still reports its symbol on-chain as USDC, so wallets show two entries that look identical. Only the token name distinguishes them, and the bridged one carries a fraction of the supply and almost none of the new pools. This tool pairs against the native one.

Arbitrum's ordering rules make this a different question than on other chains, and it is worth knowing what you are actually up against. Arbitrum has run an ordering auction since April 2025: bidders buy an express lane for a round, and every transaction outside that lane has a 200 millisecond delay added to its arrival time. Arbitrum blocks are about 250 milliseconds. Independent research covering millions of express lane transactions found that three entities won more than 99% of those auctions. So the realistic risk is not that somebody sees your pool coming, it is that the first ordering slot after it opens has already been bought by someone else. A buy placed inside the creation transaction sidesteps that entirely, because it is not competing for ordering at all.

Tokenry charges 0.002 ETH, and Uniswap charges nothing to open a pool, so the rest is Arbitrum gas. Measured from real pool creation transactions on the network, a v2 pool costs in the region of fifteen cents, a v3 pool around a quarter of a dollar, and a v4 pool a couple of cents. Guides that quote fifty to two hundred dollars for creating a v3 pool are quoting Ethereum mainnet figures and are wrong by orders of magnitude here.

Arbitrum charges one gas price covering both the network's own computation and the cost of posting your transaction data to Ethereum, folding the second into extra gas units rather than a separate line. The received wisdom is that the L1 data portion dominates on layer 2. For pool creation it does not, and the gap is dramatic: on a real Arbitrum v3 pool creation, the L1 portion was a few hundred gas units out of more than five million, well under a hundredth of the total. Opening a pool is a computation-heavy transaction, not a data-heavy one, so it benefits fully from Arbitrum's cheap execution.

The amounts you deposit set the initial price between them, so there is no price field to fill in. Depositing 4,000,000 tokens against 2 ETH opens the pool at 0.0000005 ETH per token, and multiplying that figure by your total supply gives the market cap you are implying. The tool shows the result as you type, so working backwards from a target price is straightforward.

There is no minimum and no correct number, but the quote side is the one that matters. That is the pool's capacity to absorb buying, and a shallow one means every trade jerks the price around, which anyone reading a chart can see. Deposit an amount you are content to leave in place, since removing it later moves the price and is permanently visible on-chain.

Impermanent loss is the main one: an automated market maker sells whichever asset is climbing, so a token that rises sharply leaves you holding more ETH and fewer tokens than if you had simply held both. Beyond that, both deposited assets stay exposed to price, and you are relying on the pool contracts, which for Uniswap is a well-audited and long-running codebase. Burning or locking the position is the risk you control least afterwards, because neither can be reversed.

It depends what you want from it. Arbitrum holds substantial capital in decentralized finance, but most of it sits in lending markets, perpetuals and real-world asset products rather than in DEX pools, and the chain's DeFi liquidity in pools is a fraction of what those protocols hold. What that means for a launch is that the trading crowd is genuinely present and sophisticated, and that a new pool competes for attention against yield opportunities elsewhere. It also means one thing worth correcting: ARB incentive programmes are not going to seed your pool. The DAO's recent incentive season targeted leverage looping in lending protocols, not liquidity provision for new tokens.

On v2 you receive LP tokens that represent your share of the pool, while v3 and v4 give you a position NFT instead. Whichever you get, there are three options and they are not equivalent. Keeping it leaves you able to withdraw, which anyone can see and read as a risk. Burning removes that possibility permanently, though on a v3 position it destroys the fee claim along with it, because the NFT holds both. The v4 lock is the one worth knowing about: the position goes to a fee-forwarding contract from Uniswap's own liquidity launcher code base, deployed for your pool, where nobody can ever withdraw it while the trading fees still route to you.

Not for most tokens. Anything deployed through Tokenry carries a permit function, so the approval becomes a signature with no gas attached. Permit2 covers many other tokens if your wallet has used Uniswap before. Only a token supporting neither needs a conventional approval first, and the tool identifies which case applies before you commit to anything.

Use v2 for that. Tokens move from your wallet into the pair directly on that path, so a contract that exempts its owner behaves normally, and where a cut is still taken the ETH side is rescaled so your intended opening price holds. Concentrated versions verify that the amount received matches the amount promised and reject the deposit otherwise, so v3 and v4 will not accept a taxing token unless the launcher address is exempted in your contract first.

Yes, provided the position was not burned or locked. Add liquidity deepens the pool at its current ratio, and remove liquidity withdraws anything from 1% to 100%, returning both assets plus any fees a v3 or v4 position has accumulated.