Save together, as a family.
Every button below is a real transaction on Stellar testnet, signed in your own wallet. Testnet XLM stands in for USDC. Contract .
Needs a Stellar wallet on Test Net (for example Freighter / Varial). No wallet? Watch the 3-minute walkthrough recorded with real testnet signatures.
Connect your wallet
Cairn never holds keys. Pick any Stellar wallet; it signs every action.
Start a family
You become the family's first Guardian, then add a child. Children don't need a wallet to be added.
Goal Jars
A shared goal with a target and its own rule. A lock keeps the jar closed until a date.
Add to a jar
Money moves from your wallet into the FamilyVault contract and is counted against the jar.
Weekly Plan
A fixed amount every week, paid in advance and released on schedule. Anyone can trigger a release; missed weeks accumulate. On this demo a "week" is 30 seconds.
Withdraw
The contract enforces each jar's rule. A locked jar refuses, and nobody, including Cairn, can override it.