Leave clear onchain instructions so the people you trust can reach your crypto if you cannot.
Dele holds savings across three wallets and nobody in his family knows how any of it works. Handoff Vault lets him write plain-language instructions, encrypt them to two trusted contacts, and set a check-in heartbeat; if he misses 90 days of check-ins, the guardians get the letter, never his keys.
Turn care for your family into a clear, durable plan they can actually follow.
Millions of people hold crypto that nobody else in their family could find or use. If they die or become unable to act, savings are lost, or relatives pay strangers who claim they can recover it. People want to leave clear directions without handing over their keys while they are alive.
Handoff Vault holds the most sensitive plan a person ever writes: who gets told what if they cannot be reached. When you own it, the heartbeat contract sits on your wallet, the brand on the check-in emails is yours, and every family that trusts it trusts you, not a faraway startup that could sunset the product. That trust is the business, and it compounds into an onchain record of a service that kept its word.
25 paying vaults on an annual plan and at least $3,000 in yearly recurring revenue within 90 days.
Two applications submitted to real programs (one chain builder grant, one Gitcoin style round) with a public metrics page, within 45 days.
Verified contract deployed from your wallet, a builder profile linking it, and 30 days of real check-in transactions.
Entered one hackathon with a new feature built during the event, demo submitted on time.
Your own complete letter written, two guardians confirmed, and a quarterly review reminder set.
One live session held where at least 15 people write their own letter, with a public count of vaults created.
One signed partnership: a wallet, DAO or community linking to your vault from their product or docs.
A public case study with the live contract, screenshots and three user quotes, linked from your CV or profile.
Five paid setup sessions delivered at $150 or more, and one repeat referral.
Handoff Vault is not a will and should never be sold as one. It delivers encrypted instructions to guardians the user chose; it never holds keys or moves funds. Say that plainly on your page, suggest users keep a proper will where they live, and avoid the words estate planning unless a local professional works with you.
The default is 90 days with reminder emails and wallet nudges at 60, 75 and 85 days, and users can pick a longer interval. Even when it fires, guardians only receive a letter, not keys, so a false trigger is awkward, not catastrophic. Tell users to test the flow with a short interval on a dummy letter first.
The heartbeat contract deploys from your wallet, the payout address is yours, and the domain and brand are yours. DEPLOYR builds and hands over; it does not sit in the middle of your users' check-ins.
That is the real hurdle, and it is why the first users should be people who already trust you: family, your crypto group, your clients. Show the open contract, show that no keys are stored, and let a verified contract plus ten real testimonials do the work before you spend on ads.
The contract keeps running onchain without you, but reminder emails need a live service. Keep the email sender on a plan you pay yearly, set a calendar check each quarter, and write your own Handoff Vault letter explaining how a trusted friend can keep the reminders running if you cannot.
Tradespeople log each repair with photos and a customer signature, sealed onchain as a warranty.
A weekly ritual that finds risky token approvals and lets you revoke them in one tidy pass.
Every commit, deploy, and demo you ship becomes a signed, timestamped builder diary.
Show funders exactly what their grant built, milestone by milestone, with proof attached.
A hackathon cockpit that plans your scope, tracks bounties, and drafts a judge-ready submission.
Your DePIN devices report uptime and earnings in one honest dashboard with tax-ready exports.
Tenants and landlords seal move-in photos and rent receipts so deposit disputes end fast.
Airdrop hunters prove they are one real person with one main wallet and get ranked fairly.