What is a crypto airdrop?

How an airdrop works

A project defines a recipient group and a way to distribute tokens. The group might be earlier users, contributors, or people who meet a published participation rule. Distribution can involve an onchain claim rather than an automatic transfer. The useful questions are concrete: who qualifies, which activity counts, what date applies, and where are the official instructions?

Do not confuse an airdrop announcement with an allocation to you. A project can discuss a token without publishing eligibility. A task list can exist without a token commitment. A points balance can be visible while its eventual use remains unknown. Keep those states separate when deciding whether a project deserves your time.

One historical example is Uniswap’s 2020 retrospective distribution. Its original UNI announcement described 400 UNI claimable by qualifying historical user addresses, with eligibility based on a snapshot ending September 1, 2020. That was a specific distribution with specific rules. It supplies no basis for predicting what a different project will distribute today.

How projects decide eligibility

A snapshot fixes an observation point for the activity or holdings being measured. Read both the cutoff and the qualifying action. Activity after a cutoff should not be treated as eligible unless the published terms say it counts. Uniswap’s announcement is a useful example of a retrospective rule tied to earlier activity.

A points program asks you to track a campaign’s own accounting unit. When researching one, look for what earns points, what is excluded, whether points expire, and whether any token conversion is actually published. If conversion is unstated, record it as unknown. Multiplying a points balance by an imagined token price creates an unsupported reward forecast.

A testnet is a network for testing. Ethereum’s network documentation distinguishes test networks and their test assets from production. Completing a test transaction is evidence of that test, not proof of a future allocation. Before doing repetitive work, look for explicit reward terms rather than assuming testing will be paid.

A retroactive distribution evaluates earlier activity. A published historical example can explain the mechanism, but it cannot tell you which unannounced project will reward users next. For any campaign, also look for location restrictions, identity checks, duplicate-account rules, and exclusions. If the source does not answer an eligibility question, keep the uncertainty visible.

How checkers and claims work

A checker is a route for inspecting eligibility under a campaign’s rules. A claim is the process of receiving an available allocation. Treat them as separate steps: seeing a checker does not mean a wallet qualifies, and seeing an allocation does not answer every question about timing, vesting, or withdrawal.

Begin at the project’s own announcement or documentation. Compare the exact hostname with the link in the dated research record. Read the network, eligible wallet, opening date, closing date, and any required action before connecting. When a date or requirement is missing, do not fill the gap with a social-media reply.

Use our airdrop checker and claim tracker to find dossiers with recorded official checker or claim paths. It is a research starting point. Recheck the project source before signing, especially if a campaign has changed since the dossier’s last source check. A historical receipt is not a live guarantee.

Count gas, capital, time, and privacy

“Free” needs a boundary. In our no-deposit list, it means the researched path has no token deposit requirement. It does not promise zero cost or a reward. Ethereum’s gas explanation describes network transaction fees; a token distribution can still leave transaction costs for the recipient.

For a transaction-based campaign, write down what you would need to commit, trade, bridge, or lock. Separate the amount exposed from the fee spent. Do not treat a refundable deposit as riskless, or count uncertain rewards as money available to cover costs. Set a spending limit before you begin.

Time is a cost even when the initial task is short. Record repeat check-ins, follow-up transactions, and the effort of monitoring changes. For privacy, ask what social accounts, wallet history, email address, or identity documents the path requests. Check the actual privacy and KYC terms before sharing anything. “Not stated” in a summary is a reason to investigate.

Airdrop farming needs a stopping rule

Airdrop farming means deliberately pursuing activity in the hope of qualifying for distributions. Approach it as uncertain expenditure. A sensible research note separates a published reward from speculation, lists costs you can control, and states what evidence would make you stop.

Avoid building an activity target from someone else’s claimed payout. Read the current rules yourself. If you would never use the product without a possible reward, consider whether the time and exposure still make sense. Do not use extra accounts to evade restrictions or assume repeated transactions improve eligibility. The project’s actual criteria should drive the decision.

Scams, drainers, and safer claiming

Ethereum’s security guidance describes airdrop scams that direct recipients to malicious claim websites. An unexpected token or message is not a reason to interact. Search placement, a copied logo, and an urgent countdown do not establish authenticity.

Never enter a recovery phrase or private key into a claim website, support chat, or form. Never connect wallets from DMs. Open the official route independently and read the wallet request. If a signature or transaction asks for permissions you do not understand, reject it and investigate. A familiar-looking prompt is not a substitute for checking what it authorizes.

Keep valuable holdings away from experimental activity where practical. A separate wallet limits what that wallet directly exposes; it does not make a malicious request safe or erase privacy links. Pause when the domain changes, the request differs from the documented task, or the page demands an unexplained payment to unlock an allocation.

How Airdroplet checks records

Our scoring and research methodology separates full dossiers from incomplete research briefs. The dossier gate checks for linked sources, campaign evidence, task records, cost fields, a dated research check, and an editorial verdict explaining who should consider or skip the path. This is evidence screening, not a smart-contract audit.

Scores are decision aids. A score cannot establish wallet eligibility or predict a token price. Open the source ledger and campaign receipt, check when they were reviewed, and treat conflicts or missing facts as part of the decision. A source-backed statement can still need rechecking when the project changes its terms.

For examples of the dossier format, read Backpack, Momentum, Pharos Network. These links illustrate research records, not recommendations to participate. Compare the verdict, restrictions, and source dates rather than assuming inclusion means an active reward.

Choose the next research step

Use latest listings for records newly added to our research library. A listing date is not a campaign launch date. Use the airdrop calendar for recorded seasons, snapshots, and claim deadlines; undated campaigns remain undated. If you already participated, check the claim tracker before starting new tasks.

Save the source URL, check date, cost limit, and reason for acting. If you cannot explain the reward state and wallet request in plain language, stop and read further. Skipping an unclear campaign is a valid result of research.

Common questions

Primary sources

Sources fetched and checked October 15, 2026. Historical announcements describe their original distributions.

• Uniswap: Introducing UNI — checked 2026-10-15
• Ethereum: Security and scam prevention — checked 2026-10-15
• Ethereum: Gas fees — checked 2026-10-15
• Ethereum: Networks — checked 2026-10-15