Dropsy is a decentralized airdrop protocol built on Solana. It lets anyone launch secure, on-chain token distributions using Merkle Trees — all without writing smart contract code. Use our no-code UI or developer-friendly SDK to get started.
Anyone with a Solana wallet can deploy an airdrop using our developer sdk, or no-code upcoming dApp
Dropsy is fully on-chain, transparent, and designed for scale, it can handle airdrop for millions of users
Technical
A Merkle Tree is a cryptographic structure used to verify large data sets efficiently. Dropsy uses it to prove eligibility on-chain without storing the full list of recipients, keeping your drops lightweight, cheap, and secure.
All claims are verified on-chain using Merkle proofs. When someone claims tokens, the program checks their proof against the stored Merkle root to ensure it's valid and hasn't been claimed before.
All major Solana wallets are supported — Phantom, Solflare, Backpack, and any wallet using Solana Wallet Adapter.
Yes. Our SDK makes it easy to fetch airdrop data, build claim interfaces, and launch new distributions directly from your own frontend or domain.
A Controller is a lightweight on-chain account (PDA) that manages the lifecycle of your airdrops. It handles fee collection during creation and closure, and can be created through Dropsy’s UI or directly by developers using the SDK. One controller can manage multiple airdrops efficiently.
Security & Governance
Dropsy is built with security in mind from the ground up. While our program has not yet undergone a third-party audit, it is developed using the Anchor framework, follows Solana best practices, and has been rigorously tested with real-world edge cases.
Not yet. A formal audit is part of our roadmap. While the on-chain program hasn't been open-sourced yet, our TypeScript SDK — generated with Codama — is public and available for review. We’re committed to full transparency, and smart contract code will be open-sourced ahead of audit and mainnet launch.
We've taken multiple precautions: built with Anchor for deterministic behavior, modularized logic for clarity, and extensive TypeScript test coverage. These steps make the protocol easier to verify, upgrade, and audit.
Dropsy uses on-chain bitmap tracking to prevent double-claims. Once an address claims, it's immutably marked — no user can claim more than once. This system is both tamper-proof and gas-efficient.
The DAO will launch after our NFT mint. NFT holders will gain governance rights to vote on protocol upgrades, funding, and direction.
Join our Discord, follow us on X, or contribute to the GitHub repo. You can also become a DAO member by minting one of our NFTs and participating in future proposals.