AI agents shouldn't get the full key to your kingdom.
Today we're releasing Nunchuk CLI: create a shared Bitcoin wallet with your agent, give it a spending budget, and keep the final say.
Build Bitcoin agents with bounded authority.
nunchuk_io
nunchuk_io@nunchuk.io
npub1cvql...yjt3
Bitcoin wallet specialized in multisig and collaborative custody solutions. Visit https://nunchuk.io.
"When the Canadian dollar becomes worthless, we will be here to serve you, too."
That was our closing reply to the Ontario Superior Court of Justice in 2022, when they ordered us to freeze and disclose information about the bitcoin involved in the Freedom Convoy protest.
The story of how that email came about has never been told. Today, we’re sharing that story, and how that event forged our DNA & mission.
***
February 2022. The Freedom Convoy protest was paralyzing Ottawa. Two years of lockdowns and mandates had created incredible social tension.
On Feb 14, Justin Trudeau invoked the Emergencies Act for the first time in Canadian history. It was designed for wars or terrorism; it was now being used against protesters.
Protesters’ bank accounts were frozen without due process. GoFundMe seized $10M in donations at the government’s request. The RCMP demanded that financial firms blacklist Bitcoin addresses.
The Ontario Securities Commission flagged tweets by Coinbase CEO Brian Armstrong and Kraken CEO Jesse Powell criticizing the use of the Emergencies Act to law enforcement. Balaji Srinivasan questioned whether Canada was still a “democracy”. Police began mobilizing in Canada’s capital.
The authorities seemed willing to use everything, even extraordinary measures, to quash the protest.
Many Bitcoin companies backed away, despite having millions in funding.
Jesse Powell, having previously donated one bitcoin to the protest, warned users that Kraken “cannot protect you” from the Canadian government. Elon Musk, who voiced support for the protesters, tweeted “I wish I could help. At this point, it seems that voting at the next election is the remedy.” Even powerful CEOs seemed powerless in the situation.
Then, we received the Mareva injunction.
Nunchuk, a tiny startup still in its infancy, was ordered to freeze assets and disclose information. We are self-custodial and technically unable to comply. But the threat was serious.
The pressure was immense. We had no idea how far the Canadian government was willing to go. And judging by what they had done: very far.
Concerned about the risks to their families, two members of our team decided to quit.
It was an existential crisis.
To complicate the situation, my own personal life was in upheaval.
Around the time the Emergencies Act was invoked, I learned that I would soon become a father.
I went from pure joy to total distress within a week. I thought about the world my child was going to grow up in.
I thought about why I started a Bitcoin company in the first place.
If Bitcoin couldn’t matter in a situation where people needed it most, what good is it? How is it any different from the corrupt, permissioned financial system we grew up with? The one that brought the world to its knees in the Great Financial Crisis, along with many other social woes that we’ve only begun to understand since the shift in 1971? What’s the point of it all?
What will I tell my son about what happened in February 2022?
Then I sat down and wrote the reply.
That email became our North Star. It clarified our mission: to build tools that maximize individual financial freedom and privacy, minimizing reliance on any third party.
"Trusted third parties are security holes", as the great Nick Szabo once said.
This event taught us that true sovereignty requires technologies designed to withstand pressure. Not just from governments, but from time itself.
If we are to secure wealth for generations, our solutions must eliminate ALL single points of failure. They must be designed to outlive us.
Today we announce the next major step in that mission: the realization of our commitment to trust-minimized generational security.
Today we introduce the first assisted Bitcoin inheritance solution, designed to outlive the company that created it. It’s the culmination of all the work we’ve done since that fateful day in 2022. You can read about it here:


Nunchuk
Nunchuk 2.0: Autonomous Inheritance (2026) | Nunchuk
Today, we are proud to announce a major evolution of our platform and the realization of our core mission: Nunchuk 2.0.
This launch introduces the...

We just published: How to recover your Nunchuk Miniscript wallet with Bitcoin Core.
Happy Bitcoin Whitepaper Day! 📜


Nunchuk
Recover a Miniscript wallet with Bitcoin Core (2026) | Nunchuk
Nunchuk is built on open standards and interoperable formats, meaning your wallets can always be recovered using other open-source Bitcoin tools, i...
New mobile and desktop release:
Nunchuk now fully supports @Liana Wallet wallet descriptors, including Miniscript wallets that reuse keys across policies.
Next week, we’ll publish a Recovery guide on how to independently recover a Nunchuk Miniscript wallet in Bitcoin Core.


Introducing Zen Hodl. 🧘♂️
A new Miniscript template to automatically lock your bitcoin for a set period. Self-enforced discipline that protects generational wealth.
Why use it?
💎 True HODLing: Protect your stack from
emotional, short-term decisions.
🧾 Tax Planning: Create an immutable record of your holding period for capital gains.
Find your zen. Available now in the latest Nunchuk app.


Nunchuk apps are NOT vulnerable to the recent NPM security exploit.
Our apps are fully native, with no Javascript or NPM dependencies. This was a conscious decision to reduce our supply chain to the bare minimum.
We believe that for mission-critical software like a Bitcoin wallet, avoiding Javascript and the web-based ecosystems is a fundamental security principle.


Bitcoin will dwarf the internet's economic impact.
The internet moves information. Bitcoin moves value (info with 1,000× weight).
Today we're shipping the UX to make that real: Miniscript + E2EE group wallets.
These tools combined will make programmable Bitcoin for everyone.
Bitcoin has always supported spending rules (multisig, time delays), but they were complex and risky to implement.
Miniscript structures these rules like Lego blocks, making advanced custody safe, simple, and verifiable.
We didn't just add a few pre-baked scripts.
Nunchuk now supports *generalized* Miniscript. You can create any policy supported under standard Bitcoin rules.
Use our friendly templates, or craft custom spending rules if you're advanced.
Complex policies involving multiple parties require coordination. Doing this over insecure channels (email, messengers) is a major security risk.
Nunchuk solves this. Our E2EE Group Wallets now support Miniscript out of the box.
The entire setup is encrypted, with built-in chat for secure coordination.
This combination lets you build wallets that adapt to real life needs, such as:
🧊 Timelocked inheritance plan
🏛️ Business treasuries with layered approvals & fallbacks
🤝 Non-custodial escrow for OTC trades
👻 Private multi-party wallets that look like single-sig on-chain
You have options.
Prefer simple and widely compatible? Use Native SegWit.
Want advanced privacy and efficiency?
• Taproot hides unused spending branches.
• MuSig2 aggregates multiple signers into one signature (key path or script path).
The choice is yours.
We support major hardware vendors today:
Native SegWit Miniscript: COLDCARD, Tapsigner, Blockstream Jade, Ledger, Specter DIY
Taproot Miniscript: COLDCARD, Ledger, Specter DIY
MuSig2: Software keys only (for now).
More coming as vendors ship support.
Zooming out: These tools (verifiable policies, secure collaboration, advanced scripting) are the primitives of a new financial system.
Fair, open, and anchored to sound money.
Download the Nunchuk app and give it a try.
🤖 Android: https://play.google.com/store/apps/details?id=io.nunchuk.android&hl=en
🍎 iOS:
💻 Desktop:
Android APK:
📘 Read the full announcement and see the use cases in detail here:
🔧 For builders and the curious: Dive deep into how it all works with our technical guide.
What will you build with generalized Miniscript? Tell us below. ⬇️
Bitcoin has always supported spending rules (multisig, time delays), but they were complex and risky to implement.
Miniscript structures these rules like Lego blocks, making advanced custody safe, simple, and verifiable.
We didn't just add a few pre-baked scripts.
Nunchuk now supports *generalized* Miniscript. You can create any policy supported under standard Bitcoin rules.
Use our friendly templates, or craft custom spending rules if you're advanced.
Complex policies involving multiple parties require coordination. Doing this over insecure channels (email, messengers) is a major security risk.
Nunchuk solves this. Our E2EE Group Wallets now support Miniscript out of the box.
The entire setup is encrypted, with built-in chat for secure coordination.
This combination lets you build wallets that adapt to real life needs, such as:
🧊 Timelocked inheritance plan
🏛️ Business treasuries with layered approvals & fallbacks
🤝 Non-custodial escrow for OTC trades
👻 Private multi-party wallets that look like single-sig on-chain
You have options.
Prefer simple and widely compatible? Use Native SegWit.
Want advanced privacy and efficiency?
• Taproot hides unused spending branches.
• MuSig2 aggregates multiple signers into one signature (key path or script path).
The choice is yours.
We support major hardware vendors today:
Native SegWit Miniscript: COLDCARD, Tapsigner, Blockstream Jade, Ledger, Specter DIY
Taproot Miniscript: COLDCARD, Ledger, Specter DIY
MuSig2: Software keys only (for now).
More coming as vendors ship support.
Zooming out: These tools (verifiable policies, secure collaboration, advanced scripting) are the primitives of a new financial system.
Fair, open, and anchored to sound money.
Download the Nunchuk app and give it a try.
🤖 Android: https://play.google.com/store/apps/details?id=io.nunchuk.android&hl=en
🍎 iOS: App Store
Nunchuk Bitcoin Wallet App - App Store
Download Nunchuk Bitcoin Wallet by Nunchuk on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Nunchuk Bitcoin Wa...
GitHub
Releases · nunchuk-io/nunchuk-desktop
Contribute to nunchuk-io/nunchuk-desktop development by creating an account on GitHub.
GitHub
Releases · nunchuk-io/nunchuk-android
Security and convenience. Get both with Nunchuk Bitcoin wallet. - nunchuk-io/nunchuk-android

Nunchuk
Miniscript: Programmable Bitcoin (2026) | Nunchuk
Bitcoin enables programmable money, but creating complex spending rules has traditionally been difficult, risky, and hard to coordinate. Today, weâ...

Nunchuk
Miniscript 101: A Technical Guide (2026) | Nunchuk
Bitcoin has always included a powerful scripting language that can lock coins to conditions beyond “one signature unlocks the funds.” With Scri...
Special report from our new project (zone21.com).
Bitcoin-Backed Lending 2025—Decoding Cost, Control & Hidden Risk.
We size the US $14 B market, compare CeFi vs CeDeFi vs True DeFi, and rate existing lenders with our 13-Factor Risk Model. The report also covers new rules from the GENIUS Act to Hong Kong’s VASP regime and offers a one-page borrower checklist.
Special thanks to @Lyn Alden and @npub1clwv...xhme for their review.
Read the Executive Summary or download the full PDF ⬇️


Bitcoin-Backed Lending 2025 - Zone21
The Bitcoin-collateralized loan market has swelled to an estimated US $14 billion in mid-2025 [1], showing remarkable resilience and growth since t...

New mobile release!
• Taproot multisig wallets: manual and automatic fee selection
• Show saved address labels in transaction details
• Option to rebroadcast rejected transactions
• Update default signet server
• Add guest wallets notice
• Assisted wallets: option to manually save BSMS in Setup Wizard
• Bug fixes and improvements
Taproot fee selection: what’s that about?
Taproot lets one wallet hide many spend paths.
Different path → different weight on-chain → different fee required.
So we added two ways to handle it:
• Manual: see every path and its fee. Tap the one you want.
•Automatic: if cheap-vs-costly is ≤ 10 % or $0.20, we default to the pricier path. Tweak the thresholds or turn them off any time.
As Bitcoin smart contracts get more complex and the subsidy era fades, fee variability will keep growing, both within a single path and across multiple paths, even before you factor in fee-bumping tools like RBF or CPFP.
We’re building a solution that’s easy to use and puts you in control.
Got feedback? Let us know!


KYC is a disaster waiting to happen.
If data leaks can happen to Coinbase, it can happen to anyone.
Related: never use a Bitcoin inheritance service that requires KYC.
You’re not just endangering yourself — you’re putting your family at risk too.
They’re even less equipped than you to defend against attackers.
Nunchuk’s inheritance protocol is non-KYC. That’s by design.


🔐 Collaborating on Bitcoin shouldn’t be hard.
Nunchuk Group Wallet makes it effortless—set up in seconds, works with your favorite hardware signers, and keeps everything end‑to‑end encrypted.
For a deeper dive, read our blog post:

Nunchuk
Group Wallet: Simpler, Stronger, Better (2026) | Nunchuk
Three years ago, we introduced our very first attempt at a collaborative multisig wallet—a Matrix-based solution. Although it was a groundbreakin...
TARIFFS ARE INFLATIONARY. STACK HARDER.
With the US–China trade war heating up, there’s no better time to double down on self-custody.
Here’s what’s new in Nunchuk’s latest release:
• Option to disable key path spending in Taproot multisig wallets
• Fee estimates for key path vs. script path
• Export transaction history to CSV
• Bug fixes & improvements for group wallets
🚀 Collaborative Bitcoin custody, reinvented!
Meet Nunchuk’s New & Improved Group Wallet:
✅ End-to-end encrypted wallet and chat
✅ Single-file recovery
✅ Works with 10+ hardware signers
✅ Standard or Taproot multisig
✅ Auto-deleting messages
💡 How it works:
No extra chat keys! We derive E2EE keys directly from your wallet’s descriptors.
🔒 Two-phase encryption (asymmetric → symmetric)
📱 Seamless cross-device setup
🕑 Auto-deleting messages
Shared Bitcoin ownership has never been easier. Free for all users.
Learn more in our blog:


Nunchuk
Group Wallet: Simpler, Stronger, Better (2026) | Nunchuk
Three years ago, we introduced our very first attempt at a collaborative multisig wallet—a Matrix-based solution. Although it was a groundbreakin...
