How to Claim the 400 UNI Airdrop: Eligibility and Steps

The 400 UNI airdrop was a token distribution Uniswap announced in September 2020. The UNI token was created to give holders a say in how the Uniswap protocol is governed, and the team chose to send a share of the supply to people who had already used the protocol.

Each eligible address received 400 UNI. The reward was not a purchase and did not require payment. It was a one-time distribution based on past activity, which is why many people who had only swapped a small amount on the exchange later discovered they had a claim.

The airdrop is now a historical event, so the useful question today is not how to join it but how to confirm whether you qualified, whether a claim is still available to you, and how to handle the tokens if you already hold them. The sections below cover each step in order.

If you remember using Uniswap before the cutoff, the rest of this guide shows how to verify that and what to watch out for. If you never used the protocol before September 2020, the airdrop itself does not apply to you, and you should be cautious of any message claiming otherwise.

Eligibility was tied to activity on Uniswap before a snapshot date in early September 2020. People who had swapped tokens, provided liquidity, or otherwise interacted with the protocol before that date were included, using the wallet addresses they controlled at the time.

To check your own situation, follow these steps:

• Identify every wallet address you used with Uniswap before September 2020. Many people used more than one.
• Look up each address in a public block explorer and review its transaction history for interactions with Uniswap contracts dated before the cutoff.
• Note whether the address is one you still control with its seed phrase or hardware device. You must be able to sign transactions from it to claim.

If an address shows no pre-cutoff activity, it was almost certainly not eligible. If it does show activity, the Uniswap app and official support documentation are the places to confirm that the address is on the eligible list and to see the amount it can claim.

Do not rely on a screenshot, a forum post, or a third-party tool that says you qualified. The only reliable confirmation comes from checking the official Uniswap channels directly.

Claiming requires a wallet you control, a small amount of the network's native currency for transaction fees, and access to the official Uniswap interface. The general process has been as follows, although the exact screens change over time.

1. Open the official Uniswap website by typing the address yourself or using a bookmark you saved from the official support center. Do not click links from direct messages or unsolicited posts.
2. Connect the wallet that holds your eligible address. Check the address shown in your wallet before approving the connection.
3. Look for a claim banner or claim option in the app. If the app shows that the address is eligible and the claim is open, it will display the amount, which should be 400 UNI for a standard eligible address.
4. Review the transaction details in your wallet before you sign. Confirm the contract address and the network, and make sure the transaction is a claim rather than an approval that gives someone else spending rights.
5. Sign the transaction, wait for confirmation, and then check that the UNI balance appears in your wallet.

If the interface does not show a claim, that is an important signal. Do not try alternative sites or contracts that promise to deliver the tokens for you.

A common reason claims fail or confuse people is the wallet address they connect. The address that was eligible must be the one you connect and sign with. If you used a hardware wallet back then, connect that device, and if you used a software wallet, confirm you can still access its recovery phrase.

Network matters too. Early claims happened on Ethereum mainnet, and the UNI token itself is an Ethereum token. Make sure your wallet is set to the correct network before you approve anything.

You will need some ETH in that wallet to cover network fees, commonly called gas. The amount varies with network congestion, so check the estimated fee in your wallet before signing. Keep a small buffer rather than sending all your ETH.

If you cannot access the wallet that was eligible, there is no standard way to recover the airdrop by contacting a support person who asks for your seed phrase. Anyone who asks for it is attempting to take your funds.

This is the part where many people lose money, and it is the reason you should be careful with any post that mentions the 400 UNI airdrop. Scammers reuse the name of a well-known distribution because it attracts attention, and they often pose as a helpful person on social media.

Watch for these warning signs:

• A direct message from an account you do not know, offering to help you claim in exchange for a percentage of the tokens.
• A request to send tokens or ETH first, described as a verification or activation fee.
• A link to a site that asks you to enter your seed phrase, private key, or keystore file.
• Pressure to act quickly, with claims that the offer expires in minutes.
• An approval request that gives a contract unlimited spending rights over your tokens when a claim should not need that.

If you already sent tokens, sent a seed phrase, or signed an unknown approval, move remaining funds to a new wallet you created on a fresh device, and revoke any token approvals you no longer need using a reputable approval management tool. Report the account to the platform where it contacted you.

A legitimate claim will never need you to send anything out first.

Once the UNI is in your wallet, you hold a governance token. Holding UNI does not automatically give you income, but it can be used to vote on proposals that shape the Uniswap protocol. To vote, you typically need to delegate your voting power, either to yourself or to a delegate you trust, and that delegation is a separate transaction that costs gas.

Before you delegate, read the proposal details and understand what you are voting on. Delegating to someone else passes on your vote, so choose a delegate whose published positions you have reviewed.

If you want to sell, UNI is listed on many exchanges. Compare fees, withdrawal rules, and the reputation of any platform before you deposit. Centralized platforms need identity checks, and you should only use services that are available and legal where you live.

If you prefer to keep the tokens, store them in a wallet where you control the recovery phrase, and consider a hardware device for larger balances. The safest storage method is the one you will still manage correctly in several years.

Tax treatment of airdropped tokens varies widely. Some jurisdictions treat receipt as income at the value when you gained control of the tokens, while others tax only when you sell or dispose of them. The rules can also differ for tokens you received years ago and for gas fees you paid.

To keep useful records, save the following for each relevant transaction:

• The claim transaction hash and the date and time it confirmed.
• The number of UNI received and the value in your local currency at that time, from a reputable price source.
• The gas fee you paid, in both ETH and local currency.
• Any later sales, swaps, or transfers, with dates and values.

Records kept in a spreadsheet or exported from a wallet or block explorer are usually easier to work with than trying to reconstruct history later. Note which wallet addresses you used, because each address has its own history.

This is general information rather than tax advice. A qualified tax adviser in your country can tell you how the rules apply to your situation and which deadlines matter.

If you want to stay active with Uniswap after claiming, it helps to know that the protocol has several versions running at once. Uniswap V2 is an older automated market maker, Uniswap V3 added concentrated liquidity, and Uniswap V4 is the newest version with hooks that let developers customize pool behavior. Many users still interact with V2 and V3 pools, and their liquidity positions and fees work differently from one another.

Using the interface, you can swap tokens on supported networks, check pool details, and manage positions. Before providing liquidity, understand impermanent loss, which can reduce the value of your position compared with simply holding the tokens. Fees earned must be weighed against that risk.

Network fees on Ethereum can be high when traffic is heavy, so many users choose to swap on other supported chains. Always confirm you are on the intended network and that the token you are buying is the correct contract, because copycat tokens are common.

None of this is required to keep your UNI. It is simply context if you plan to use the protocol after the airdrop.

Before you start, check the official Uniswap support center for the current state of the claim and any notices about changes to the interface. Then work through this short checklist.

1. Confirm which wallet addresses you used before September 2020 by reviewing their transaction history.
2. Use only the official Uniswap website, reached through a bookmark or a direct address you typed yourself.
3. Connect the eligible wallet, check the amount shown, and review every transaction before signing.
4. Keep a small amount of ETH for gas and do not send extra funds to anyone.
5. Store your recovery phrase offline and never type it into a website or give it to another person.
6. Save your records for tax reporting and check the rules that apply where you live.
7. Revoke any approvals you no longer need, and be cautious about any new approval requests.

If you could not find any evidence that you were eligible, or if the official channels do not show a claim, accept that the airdrop may not apply to you. Chasing offers from strangers usually costs more than it returns.

The main lesson of this airdrop is simple: verify through official sources, keep control of your keys, and never pay to receive something you were supposed to be given.