Docs · Introduction
Welcome to CLAIMA.
CLAIMA is a Robinhood Chain toolkit for sending value behind a password-protected URL. The sender locks ETH or USDG in a one-time vault, the recipient unlocks it with a shared secret — no recipient wallet address required at send time.
What CLAIMA is
A small set of routes that lets anyone on Robinhood Chain create or claim password-protected drops. There's no account, no server, no custodial wallet between you and the network.
When you create a link, CLAIMA generates a fresh ephemeral EVM burner wallet, encrypts its private key with your password (PBKDF2 → AES-256-GCM), and writes the resulting payload to the URL fragment — the part after # that never reaches our server. The recipient enters the password in their browser, the burner wallet is recovered locally, and the temp vault signs a transfer to the recipient's wallet.
Why it exists
The classic Robinhood Chain transfer requires you to know the recipient's wallet at send time. That's a friction point for gifts, perks, payroll, support payments, community drops, and anything where the two parties haven't exchanged addresses yet.
CLAIMA turns the transfer into a claim: the sender funds a vault, the recipient proves intent with the secret, and the wallet handoff happens only at the moment of claim.
Who it's for
- Crypto-native users who want to airdrop ETH or USDG to a friend who doesn't want to share their wallet publicly.
- Community managers running quests, raffles, or bounty payouts where the winner is decided later.
- Developers who want a non-custodial reference for how to combine WebCrypto, fresh keypairs, and Robinhood Chain transfers.
Where to next
If you want to ship your first link, jump to the quick start. If you want to understand the architecture before clicking around, read how it works and security model.