Short answer. A crypto airdrop is a distribution of tokens, NFTs or points to a defined set of wallet addresses or accounts. The project sets the rules, records who qualifies, and then either lets recipients claim or delivers automatically. It is closer to a loyalty programme with a public ledger than to free money.
What a crypto airdrop is, precisely
The term borrows from dropping supplies out of an aircraft: assets arrive without the recipient purchasing them. Wikipedia's entry on the topic describes an airdrop as a token or coin sent to many wallet addresses without being requested, often at no cost, to draw attention to a new project. We checked the ethereum.org glossary and it has no airdrop entry, which tells you the word is a market convention rather than a protocol feature. There is no airdrop function in Ethereum. Each project writes its own contract or database rules.
Three ideas are worth separating, because they get blurred in headlines.
- Distribution
- Tokens move from a project-controlled supply to many holders. Nobody pays the project for them in the airdrop itself.
- Eligibility rule
- A written test that decides who is in. It may count transactions, balances, held names, staked assets or points.
- Delivery method
- Either the recipient claims on an official page, or the platform credits an account. This is where most scams hide.
An airdrop is not the same as a token sale, a giveaway that asks you to send funds first, or an unknown token appearing in your wallet uninvited. The last one is common and usually hostile; our guide to airdrop scams covers it.
Why projects run airdrops
Projects state their reasons in public, and they cluster around three motives. We quote only what they actually wrote.
- Spreading ownership. The Uniswap announcement, published on September 16, 2020, says the protocol owes its success to community members and describes the token as enabling shared community ownership and a diverse governance system. It allocated 150,000,000 UNI, 15% of the genesis supply, to past users, liquidity providers and SOCKS holders.
- Rewarding early use. Arbitrum set aside 11.62% of its initial supply, 1.162 billion ARB, for users, and a further 1.13% for DAOs, according to the Arbitrum Foundation documentation.
- Bootstrapping a network. Berachain's overview gave 8,250,000 BERA (1.65%) to people who used its testnets, so early testing effort turned into early ownership.
Editorial judgement: there is also a quieter motive that projects rarely write down. A token held by hundreds of thousands of users is harder to centralise, and a drop gives a new network a ready audience. That does not make a drop dishonest. It means you should read an airdrop as a trade, where the project buys attention and usage with future tokens.
Types of airdrop
Labels vary between sites, but the mechanisms fall into six groups. Many drops combine two or three.
| Type | What qualifies you | Documented example |
|---|---|---|
| Retroactive | Past activity before a snapshot, with no promise at the time | Arbitrum: points from qualifying actions before February 6, 2023 |
| Holder-based | Owning an asset or name on a date | ENS: anyone who held an ENS name on October 31, 2021 |
| Points-based | Accumulated points converted later | Variational: 32% of supply for points holders, per its docs |
| Testnet-linked | Use of an incentivised test network | Berachain: 8,250,000 BERA for testnet users |
| Staking-linked | Assets locked during a measured period | EigenLayer: Season 2 measured staking from March 15 to August 15, 2024 |
| Social or engagement | Scored posts or community roles | Kaito: Yaps earned by posting about tracked projects |
Points and testnet programmes get their own guides: points programs explained and the testnet guide. Telegram-based drops and NFT drops have distinct risks and are covered in Telegram airdrops and NFT airdrops.
The lifecycle, step by step
Most drops move through five stages. Pick a stage below to see what happens, what to check, and a real example. The order is typical, not universal, as the Arbitrum example later shows.
The project says what it intends to do
Sometimes the rules arrive first, sometimes only a promise. The Uniswap post published on September 16, 2020 stated the rules and opened claiming in the same document. Many points programs run for months before any token terms exist. What you should look for at this stage is a first-party page that names a snapshot rule, a claim site and a date, not a rumour that a drop is coming.
Activity is frozen at a fixed point
A snapshot records balances or activity at one moment, so later behaviour cannot change the outcome. Arbitrum used Arbitrum One block 58642080 on February 6, 2023. Uniswap counted activity up to September 1, 2020, 12:00 UTC. Some programs publish the snapshot after the fact, or never, which is why unannounced snapshots are a risk for anyone farming.
Rules turn activity into an allocation
Eligibility can be a flat amount per qualifying address, a pro-rata share, or a score. Uniswap paid 400 UNI to every qualifying user address and a weighted share to liquidity providers. Arbitrum scored wallets from 3 to 15 points and mapped points to amounts. Anti-Sybil filters usually run here, removing addresses the project judges to be duplicates.
You collect, or the project delivers
On-chain drops usually need you to connect a wallet to the official claim page and sign a claim transaction. Arbitrum tokens were claimable only on Arbitrum One, within a window that ran from March 23 to September 24, 2023. Some centralised platforms skip this step: Lighter says eligible users receive tokens automatically in their accounts. A claim window has an end date, so check it.
The token becomes transferable and tradable
The token generation event is when the token exists and can move. Listing on trading venues is a separate decision and may come before, after or alongside it. Vesting then decides how much you can actually sell: GRVT releases its pool in tranches over 12 months, while Kamino and others published their own schedules. A claim does not equal liquidity.
With JavaScript disabled, all five panels show in sequence, so nothing is hidden from you.
What you receive, and what it costs
What lands in your wallet
The usual asset is a fungible token, often a governance token. Some drops are NFTs, some are points that convert later, and some are balances credited inside a trading platform. A governance token typically lets you vote on proposals, but its market value is a separate matter and nobody can promise it.
Vesting often limits what you can move. Berachain's documentation lists a one-year cliff followed by one sixth unlocking and the rest vesting linearly over 24 months for its airdrop allocations, with some groups on separate schedules. GRVT states that its allocation vests fully over 12 months, in tranches. Check the schedule before assuming a headline number is spendable.
What it costs you
- Network fees when you claim, and for every interaction that earned eligibility. Arbitrum's page does not state claim fees, so we do not either.
- Time spent researching, interacting and keeping records.
- Capital lock-up where staking or deposits count, as in EigenLayer's measurement period.
- Tax in many jurisdictions on receipt or sale. Rules differ by country, so read our airdrop tax guide and check with a qualified adviser.
- Risk that the drop never happens or is smaller than hoped. Price can fall after a claim, and some tokens never trade.
"Free" therefore means free of a purchase price, not free of cost. Treat anything that asks you to pay a "release fee" or "gas deposit" to a stranger as a scam.
Worked example: the Arbitrum airdrop
Every date here comes from the Arbitrum Foundation documentation, summarised on our Arbitrum page. Notice that the order differs from the neat five stages above.
- Nitro upgrade. Points earned before this cut-off counted double.
- Snapshot at Arbitrum One block 58642080. Only actions before this moment counted.
- Token generation event, according to the foundation documentation.
- Claiming opens, on Arbitrum One only.
- Claiming ends. The documentation now states ARB is no longer claimable.
The snapshot came before the claim by about six weeks, and the token existed a week before claiming began. The rules mapped points to amounts: a wallet needed at least three points, scores were capped at 15, and under the pre-Nitro table three points meant 1,250 ARB while twelve or more meant 10,250 ARB. Post-Nitro points were worth half.
What the page does not say is equally useful. It does not state gas costs for the claim, any geo-restriction, or a delegation requirement. We left those out on purpose. The lesson is that a drop's headline rarely contains the details you will actually need, so the primary source is the only safe reference. Uniswap offers a contrast: its 2020 announcement counted 251,534 user addresses, including about 12,000 that had only submitted failed transactions, and paid each 400 UNI.
Who gets excluded, and why
Eligibility rules are also exclusion rules. These are the categories you will meet, each with a documented case.
| Exclusion | How it works | Documented case |
|---|---|---|
| Sybil filtering | Removing or down-weighting addresses judged to belong to one person | Arbitrum deducted a point if all activity fell in a 48-hour window; Celestia used blocklists from earlier airdrops and clustering analysis, per its blog |
| Minimum activity | Too little usage to count | Arbitrum required at least three points |
| Team and insiders | Contributors are left out of community pools | Eigen Foundation excluded core contributors of Eigen Labs and the Foundation from Season 1, per our EigenLayer page |
| Jurisdiction | Terms bar residents of listed countries | Celestia's claim page barred users in the United States and other prohibited jurisdictions; Lighter's terms list jurisdictions including the United States, Canada and the United Kingdom |
| Missed window | No claim before the deadline | Arbitrum's claim ended September 24, 2023; GRVT forfeited unregistered allocations after August 6, 2026 |
Using a VPN to get around a geographic rule is a bad idea. Grass's terms, summarised on our Grass page, allow disqualification for it. Read the terms for the specific drop. Geographic limits are the project's stated rule and sometimes a legal one; this guide cannot tell you what applies to you.
For the practical side of avoiding Sybil flags, including wallet separation, see burner wallets for airdrops. Splitting one balance across many wallets also tends not to help where allocation is linear, as the Eigen Foundation's Season 1 post states.
Myths worth dropping
"Every wallet gets something if it holds the right coin."
Only if the rule says so. Holder-based drops, like ENS, use a specific date and asset. The ENS documentation also says there are no plans for another airdrop and warns that notices of one may be fraudulent.
"More transactions always means more tokens."
Arbitrum counted each qualifying action at most once, so repeating the same action added nothing. Breadth and spread over months scored; raw count did not.
"Points are guaranteed to become tokens."
They are not. Lighter's docs, summarised on our page, state that points have no guaranteed conversion rate, and Abstract never officially announced a token at all. See points programs explained.
"Tokens in my wallet that I never asked for are my airdrop."
Usually they are bait. Interacting with them can trigger a malicious approval. Ignore them, and verify any real drop on the project's own site.
"An airdrop is profit."
It is a taxable-in-many-places asset with fees, vesting and price risk. Whether you profit depends on what you spent and when you sell, and no page can promise it.
Where to go next
If you are deciding whether to spend effort on drops, read the airdrop farming guide, which puts numbers on time and fees. To browse current campaigns, start at latest, confirmed and potential, and check what is already over. We explain how each status is assigned on how we verify, and you can follow your own list in the airdrop tracker.
Before you connect any wallet to anything, spend ten minutes on the custodial versus non-custodial distinction. It decides who actually controls the tokens you receive.
Primary sources
Sources last checked 19 Oct 2026. Links open the project's own pages, not summaries from other sites.
- Uniswap blog: UNIblog.uniswap.org
- Arbitrum Foundation docs: airdrop eligibility and distributiondocs.arbitrum.foundation
- ENS documentation: DAO token and airdropdocs.ens.domains
- ethereum.org glossary (checked: no airdrop entry)ethereum.org
- Lighter terms of servicelighter.xyz
- Celestia blog: Genesis Dropblog.celestia.org
- Berachain blog: airdrop overviewblog.berachain.com
- Grvt Help Center: everything about TGEhelp.grvt.io
- Eigen Foundation: Season 2 eligibility FAQdocs.eigenfoundation.org
Frequently asked questions
What is a crypto airdrop?
A crypto airdrop is a distribution of tokens, NFTs or points to many wallet addresses or accounts, chosen by rules the project sets. It usually involves no direct payment, but recipients often earned eligibility through past activity, and they pay network fees if a claim transaction is needed.
What does airdrop mean in crypto?
In crypto, an airdrop means a project sends or offers tokens to a defined group of addresses instead of selling them. The group might be early users, liquidity providers, name holders or stakers. The term comes from dropping supplies from the air, applied to free distribution of digital assets.
Are crypto airdrops really free?
The tokens themselves are usually not sold to you, but participation can cost network fees, time and sometimes locked capital. Receiving tokens may also be taxable where you live. A legitimate airdrop never asks for your seed phrase or private key at any stage.
How do I know if I am eligible for an airdrop?
Eligibility is published by the project, either as rules in its documentation or as a checker on its official site. Reach the checker from the official docs, not from a message or search ad. If a project has published no rules, eligibility is unknown and nobody can confirm it for you.
What is a snapshot in an airdrop?
A snapshot is a recorded state of the blockchain or a database at a fixed moment, such as a block number or timestamp. Projects use it to decide who qualifies and how much each address receives, so later activity does not change the result.
Can I lose money from an airdrop?
Yes. The usual losses come from scam claim pages that drain wallets, from token approvals you forget to revoke, and from fees spent chasing a drop that never happens. Genuine claims use the official domain only and never require a seed phrase.