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HeirVault
Non-custodial · Audited by OpenZeppelin · Live on 9 chains

Your wealth. Your keys. A plan that outlives you.

A private vault for your crypto. You keep the keys. We keep the plan running. Heartbeats, family allowances, inheritance — all on rules only you can write.

For
Non-custodial · Est. 2024
CustodySelf
Chains supported9
Smart-contract auditOpenZeppelin
Formal proofs51
Funds moved by usNever

We never hold your keys · We never see your seed · Audited, open-source, formally verified

One small ritual

Tap once a month.
That's the entire ritual.

One signed transaction from your wallet says "I'm here." Miss it and the plan starts to wake up. Tap it and the ring fills back to green. Try it on the right — the demo loops on its own; tap the ring to reset the days.

The everyday ritual
days left
Healthy

Tap the ring to check in. Demo loops every minute.

How it works

Four steps. Fewer moving parts than your bank.

We chose every detail so a non-technical reader could follow it cold. The cryptography is underneath, doing its job, where it belongs.

  1. 01

    Set up the vault

    Pick a chain, deposit any amount, and write down the rules: who inherits, in what shares, after how long, with what cooling-off window.

    About 10 minutes from your wallet. No KYC, no mandatory email, no waiting on support. The vault is a smart contract you own outright.

  2. 02

    Live your life. Heartbeat once a month.

    A small monthly tap that says "I'm here." Miss a few and your plan begins to wake up. Catch up anytime; nothing about a missed heartbeat is destructive.

    Notifications by email, Telegram, or both. Set the cadence yourself: 30, 90, or 180 days. Stewards can grant you extra time if life gets in the way.

  3. 03

    Optional: send standing orders today

    Recurring transfers to your kids, your parents, or anyone you choose. Automated. They never see your wallet. You never trust a custodian.

    Up to 10 schedules per recipient. Periods from 1 day to 365 days. Pause, change, or cancel any time. Available to Premium plans.

  4. 04

    When you're gone, your family inherits together

    Your named recipients claim their share with a built-in cooling-off period and a quorum signature. No single person can act alone.

    20-minute commit-reveal window prevents frontrunning. Pull-only withdrawal prevents reentrancy. Pro-rata distribution by share. Recovery available throughout.

What you actually see

The protocol is software, not a brochure.

Two moments most products hide and ours leans on. The monthly ritual that keeps you in control. The minute your family receives, on every chain you hold.

Check-ins · last 12 monthsvault.0x7c…2a1f
Twelve monthly check-ins. The last one missed; claim window opens.
Jun 2025▲ May 2026 — missed; claim opens
Figure 1A monthly heartbeat — light enough to forget, loud enough that your family notices when it stops.
Figure 2One vault. Three chains paid in the same minute. Casa is Bitcoin only. Inheriti is EVM only. Your wealth is not.
The portfolio question

Toggle what you hold.See what they receive.

Six chains, one vault. Casa covers one of them. Inheriti covers a different one. We cover all six. The picker isn't a feature checkbox — it is the vault.

Try it · pick what you hold3 of 6 chains
Your heirs would receive

0.5821 BTC · 12.40 ETH · 1,048 SOL

One vault. 3 chains distributing in the same minute, in the shares you set.

Three promises

In plain English, with the math underneath.

Most crypto products lead with technical proofs. We lead with the promises those proofs are there to keep.

  1. 01

    Your assets stay yours.

    Ownership

    Your crypto sits in a vault that only your wallet can change. We have no key. No admin button. No way to move your funds. Ever.

    Like a safe-deposit box where the bank holds the room, you hold the only key. Except here, even the room is yours.

    • Open-source contracts (MIT). Read every line.
    • Audited end-to-end by OpenZeppelin
    • Verifiable bytecode on every chain
    • No upgrade backdoor for HeirVault
  2. 02

    Your plan can't be hijacked.

    Integrity

    Once you set the rules (who inherits, when, how much), nobody can rewrite them. Not us. Not a hacker. Not one family member alone.

    Like a sealed will at a notary. The terms are visible, but the seal is mathematical.

    • 51 formal proofs (Halmos symbolic execution)
    • 10,000-run fuzz tests · 512-run invariants
    • Commit-reveal anti-frontrunning on every claim
    • Family quorum (M-of-N) required for inheritance
  3. 03

    There's always a way back.

    Reversibility

    Lose your phone, change your mind, or just want to pause? You can. There is no scenario where one bad day costs you your estate.

    Like a fire alarm with a 7-day cancel window. Pulling it doesn't burn the building down.

    • Account recovery: guardian-gated, 7-day cancel window
    • Pause the vault any day; auto-resume after 7 days
    • Cancel a claim during the 20-minute reveal window
    • Override guardians with heir consensus if needed
Who it's for

Built for people whose cryptohas to outlast them.

The plan looks different depending on who you're protecting and why. Find the case that sounds like yours.

01
Founders & early teams

You hold seven figures in tokens, and no one else can reach them.

Vested tokens across several wallets. A hardware key in a drawer. A seed phrase only you know.

If something happens to you, your family inherits a puzzle they can't solve. HeirVault turns it into a plan that executes itself — without ever handing your keys to anyone.

Crypto inheritance
02
Families & parents

You want to provide for your family now, and after.

Monthly support to kids at university or parents abroad. An inheritance plan you keep meaning to set up.

Standing orders today and inheritance tomorrow, built into the same vault. Automated, on your rules, never through a custodian or a remittance fee.

Family allowances
03
Family offices, businesses & DAOs

Your treasury can't depend on one person's keys.

A CFO who holds the only signer. A co-founder buyback you settle by hand. An auditor who needs a clean trail.

Board-quorum control, scheduled vesting, dividend distribution, and continuity if a signer disappears. A self-custodial treasury that survives a resignation and an audit.

Business treasury
04
Cross-border families

Your family is in three countries. Your wires reach none of them well.

Parents in one country, children in another, you in a third. Slow transfers, punitive fees, a probate maze.

Support and inheritance on rails that don't recognize borders. One vault, nine chains, zero custody — wherever you and your family happen to be.

Cross-border families
Why it's safe

What can happen.And what cannot.

Trust is built when fears are named, not avoided. Here is the shortest list we could write of every scenario that could matter to you.

  • Pause the vault any day, for any reason.
  • Change heirs, shares, and stewards while you're alive.
  • Cancel a claim during the 20-minute reveal window.
  • Reset stewards (your trusted extenders) with heir consensus.
  • Recover access to the vault if you lose your wallet (7-day window, you can cancel).
  • Cancel all standing orders in a single transaction.
  • Move chains. Use 1 chain or 9. The plan stays the same.
  • Move your funds. Ever.
  • Change your heirs, shares, or rules.
  • Force a claim. Force a recovery. Force anything.
  • See your seed phrase. We don't have it.
  • Disappear and take your assets with us. The vault is yours, on-chain.
  • A single heir cannot claim alone. Your family quorum is required.
  • A hacker who takes one wallet cannot drain the vault.
  • A steward cannot take time away from you, only grant more.
  • A bug-bounty researcher can only earn rewards, never reach your funds.
  • A court order cannot make us hand over keys. We don't have any.
While you're alive

Standing orders, for the people you love.

Crypto inheritance gets all the attention. But most of life is about the transfers you make today, not after. Set a standing order. Send what you mean to send. Every month, for as long as you choose.

  • Up to 10 schedules per recipient. Different amounts, different cadences.
  • Periods from 1 day to 365 days. Pause, change, or cancel any time.
  • The recipient doesn't need a HeirVault account. They just need a wallet.
  • Inheritance is built in. Same vault, same rules, when the time comes.
See the full family-allowance use case →
Recipient

Daughter, age 18, university years

Amount

$2,000

Cadence

Monthly

Duration

4 years

Total flow

$96,000

She gets a predictable allowance through college without you handing over the wallet, and without trusting any custodian.

CustodySelf
Recipient onboardingNone
Cancel any timeYes
Inheritance built-inYes
Recovery

You can lose the walletand still come back.

The first question most people ask is also the right one: "What happens if I lose my wallet tomorrow?" Here is the answer, end to end.

Recovery is gated by people you choose. It runs on a seven-day clock. You can cancel it at any point during that window. We never hold a key, never approve a recovery on our own, and never can.

See the contract that enforces this →
  1. Day 0

    You realize.

    Lost phone. Stolen wallet. Forgotten passphrase. Whatever it is, you tell us and your guardians from any device, any country.

  2. Days 1–3

    Your guardians sign.

    The trusted people you named at setup confirm it's really you. They sign with their own wallets. We don't have keys to anything.

  3. Days 1–7

    You can cancel.

    Even after guardians sign, the seven-day window is yours. Pull the alarm, change your mind, anything. We default to slow.

  4. Day 7

    Access restored.

    If nothing was cancelled, your vault is now controlled by your new wallet. Heirs, rules, balances. All preserved exactly.

Guardian-gated
Recovery only proceeds with your chosen guardians' signatures.
Owner-cancellable
You can cancel during the entire 7-day window. Bad day, no problem.
Heir-overridable
In the rare case of guardian collusion, your heirs can reset stewards together.
A small simulator

What happens if…

Pick a fear. Watch what actually happens. We built every one of these flows to be visible end-to-end, so you don't have to take our word for it.

If I disappear for six months

Step 1 of 6
  1. Day 0

    You miss your monthly heartbeat.

  2. Day 30

    Reminder emails go out: to you, and to anyone you set as a contact.

  3. Day 90

    Your grace period ends. Your stewards can offer you more time. Your family can begin a claim.

  4. Day 91

    Your named recipients sign together. Your family quorum, M of N.

  5. Day 91 + 20 min

    The 20-minute cool-off elapses. If anything is wrong, you can pull the alarm.

  6. Day 91

    Each recipient pulls their share, on their own time, on the chain you chose.

Outcome

Your family quorum signs together, waits 20 minutes for the cool-off window, and pulls each person's share. No single heir acts alone.

By the numbers

Quietly, with people who plan in decades.

We don't publish customer logos. Privacy is part of the point. Here are the numbers we will share, and a few voices, anonymized, who wanted to.

$182m
Crypto under self-custody plans
1,800+
Vaults across 9 chains
Zero
Funds ever lost or moved by us
Audited
OpenZeppelin · 51 formal proofs
I'd been putting this off for years. The hardest part wasn't the tech. It was deciding the rules. Once that part was done, the rest took an afternoon.
Founder, Series B fintech
We've been topping up my mother's living costs for years. Western Union charges fees. PayPal sends her a notification every time, which she finds embarrassing. The vault just does it.
Engineer, Berlin
I'm an estate lawyer. I expected to find something to dislike, usually I do. The recovery flow is the cleanest I've reviewed for digital assets so far.
Partner at a London estate firm
Concierge onboarding

We'll sit beside you while you set this up.

Self-custody is not the same as solo-custody. The hardest part of an estate plan isn't the technology. It's deciding the rules. A 30-minute concierge call is the calm way through.

  • We never see your keys.

    Not your seed, not your private key, not even the screen they're on. We sit beside you on a call. You hold the wallet.

  • We never custody your funds.

    The vault is yours. We have no permission to move anything, ever. We're guides, not custodians.

  • 30 minutes, on your time.

    One call to set up the vault. Or two, if you want to think through who, how much, and when. You can always come back.

  • A real human, not a chatbot.

    Founders take these calls. Engineers join when needed. Lawyers and tax advisors are available on request.

FAQ

Honest answersto the hardest questions.

The first three are the ones we most want you to ask. None of the answers are softened.

What if…
  • You begin recovery from any device. The trusted people you named at setup (your guardians) confirm it's really you with their own wallet signatures. A seven-day window opens. You can cancel it at any point, from anywhere, for any reason.

    If nothing was cancelled, your vault now answers to your new wallet. Heirs, shares, and standing orders are preserved exactly. Your balances don't move; they were always in the vault, not in the wallet.

  • Your vault keeps working. The smart contract sits on the blockchain. It doesn't depend on our servers. Heartbeat, stewards, standing orders, claim flow: all enforced by the contract, not by us.

    We mirror recovery instructions to IPFS and our public GitHub. If we vanished, your family could still inherit from any wallet on any chain.

  • A single signature is never enough. To move funds out of your vault, a quorum of your named heirs must sign together. After they do, there's a 20-minute commit-reveal cool-off before anything moves. If you suspect something, you pause. The vault freezes for up to seven days.

    A hacker who takes one wallet (yours, an heir's, a steward's) can do nothing alone. The system was designed assuming any single key could be compromised. The plan survives that.

Product
  • Yes. The vault is a smart contract you deploy from your own wallet. Only that wallet (and the rules you wrote) can change anything. We have no admin key, no upgrade backdoor, no master switch. The OpenZeppelin audit and our 51 Halmos formal proofs verify exactly this.

  • Seven EVM chains today (Ethereum, Base, Arbitrum, Polygon, BSC, Avalanche, Hyperliquid), plus Bitcoin (Taproot multisig), Tron, and Solana. You can have one vault per chain or vaults on every chain. The rules are yours, the plan is the same.

  • On EVM chains: native (ETH/etc), any ERC-20, any ERC-721 NFT, and any AAVE-supplied position. On Bitcoin: native BTC. On Tron: native TRX and TRC-20 tokens. On Solana: SOL and SPL tokens. We don't restrict which tokens you can hold. Your vault, your assets.

  • No. The contracts are permissionless. Our concierge service is opt-in, and we ask only for the information you offer. You don't need an email to use the vault, though we recommend at least one notification channel so you don't miss a heartbeat reminder.

Money
  • A flat monthly subscription, regardless of how much you protect. The contract itself only charges network fees, paid by whoever initiates an action (you, an heir, a steward). We don't take a percentage of your assets, and we don't take a cut of any transfer.

  • Yes, optionally. You can supply tokens to AAVE V3 from inside the vault, earn yield, and withdraw whenever you choose. The yield accrues to the vault, so heirs benefit too. This is opt-in and managed entirely by you.

Begin the way thatsuits you.

Set up a vault yourself in about ten minutes, or book a 30-minute concierge call and we'll sit beside you. Founders take the call. We never see your keys.

No KYC for vault setup. Self-custody is the default. You can leave at any time — your contract is yours, on chain, forever.