Frequently asked.

AirPump ($AIRPUMP) is a community memecoin on Solana that does the airdrop pump.fun never bothered to do.

In July 2025, pump.fun launched their PUMP token with a published 24% allocation earmarked for “community airdrops and incentives.” That airdrop never showed up in the wallets of the people who actually used the platform. AirPump is the meme version of that airdrop, run by a fan, for the users.

The dev bought 24% of total supply (240,000,000 tokens) at launch via a bundled first-buy on the pump.fun bonding curve. Every single one of those tokens went straight into a merkle claim vault. Real pump.fun users can claim their share, weighted by trading volume, forever.

It's a joke. It's also functional.

You're eligible if your wallet appears in the snapshot. The snapshot is every wallet that traded on pump.fun before 2026-04-18 · 17:00:00 UTC.

• Eligibility is per-wallet, not per-person. Multiple wallets = multiple line items.
• The snapshot is frozen. Trading after the cutoff doesn't change anything.
• The list is public. Check yours on the portal or grep allocations.csv ↗ directly.

Volume-weighted, proportional to the entire eligible set:

your_allocation = 240,000,000 × (your_volume_usd / total_eligible_volume_usd)

volume_usd is the lifetime USD trading volume attributed to your wallet across pump.fun as of the snapshot cutoff. We use volume as a proxy for fees paid — pump.fun fees scale at roughly 1% of volume, so the proportional outcome is effectively identical to fee-weighted.

Token amounts are floored to whole base units (6 decimals). The dust from rounding stays in the vault.

Honest answer: we ran into a hard limit pulling the snapshot.

The original plan was a floor of 0.001 SOL in lifetime fees paid — basically anyone who ever clicked buy. The off-chain data we were pulling from got cut short before we reached the long tail.

What we ended up with is 8,869,000 wallets, with an effective floor of roughly $352.56 USD in lifetime trading volume. If your wallet traded less than that on pump.fun before the cutoff, you are not in the snapshot, even though the original design would have included you.

A few things worth saying plainly:

• This is a real exclusion. We're not going to hand-wave it.
• 8.87M wallets is still a huge dataset — likely the most exhaustive fee-weighted pump.fun snapshot anyone has ever published.
• If pump.fun had run this airdrop themselves, they almost certainly would have set the bar higher than $352. So the dataset is probably more inclusive than the official version would have been.
• We're not going to re-pull or re-issue. The merkle root is committed and the program is initialized. What's there is there.

If you're below the cutoff and frustrated, that's fair. The snapshot CSV is public — you can confirm exactly where you sit.

1. Connect a Solana wallet on the portal (Phantom, Solflare, Backpack, anything wallet-standard).
2. The portal looks up your allocation from the snapshot.
3. If you're eligible and haven't already claimed, click claim and sign one transaction.
4. Tokens land in your wallet. The portal shows a Solscan link.

The whole flow is one signature. No KYC, no email, no Discord role.

Nothing happens. Your allocation stays in the vault, reserved for you, forever.

The claim window does not close. There is no expiry. There is no “if you don't claim by X date, it gets redistributed.” The dev has publicly committed to never drain unclaimed tokens. That commitment is social, not cryptographic — the program is upgradeable — but it's on the record and tied to a real reputation.

If you forget about this and remember in five years, your claim button will still work.

No.

AirPump is an independent fan project. It is not built by, endorsed by, sponsored by, or otherwise connected to pump.fun, the PUMP token, or any pump.fun-affiliated entity. Use of the “pump.fun” name on this site is descriptive and parodic.

The project's existence is a comment on pump.fun's published tokenomics and what the community interpreted those to mean. It's not a legal claim, an accusation, or a demand. It's a meme that ships working code.

See the full disclaimer ↗ for the legal-ish version.

Everything is public.

Build a merkle tree from allocations.csv using the standard leaf format (keccak256(index || claimant || amount), ordered by index) and confirm the root matches the one committed on-chain.