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How to create a crypto airdrop (Merkle claim)
A claim-based airdrop lets recipients claim their tokens themselves instead of you pushing a transfer to every wallet. It uses a Merkle tree: you publish a single root on-chain, and each recipient claims with a cryptographic proof. This is ideal for large campaigns where you do not want to pay gas to send to thousands of addresses upfront.
Push disperse vs. claim-based airdrop
- Push (disperse) — you pay every recipient directly in one transaction. Best for payroll and small, known lists. See our token multisender guide.
- Claim (Merkle) — recipients claim on their own gas and timeline. Best for large public airdrops.
Steps to create a Merkle airdrop
- Pick the token and network — Ethereum, BNB Chain, Base, Arbitrum, Avalanche, Polygon, HyperEVM or Solana.
- Upload recipients — import an address, amount list; Sendify builds the Merkle tree and root for you.
- Fund and set a claim window — deposit the total amount and choose how long recipients can claim.
- Share the proofs file — recipients claim with their proof; unclaimed tokens can be burned or reclaimed after the window.
Why use Sendify for airdrops
- Non-custodial — you sign every transaction; funds never leave your control.
- Multi-chain — one interface for 8 networks.
- Flexible expiry — burn or reclaim unclaimed tokens automatically.