Damus
nunchuk_io profile picture
nunchuk_io
@nostrich

Bitcoin wallet specialized in multisig and collaborative custody solutions. Visit https://nunchuk.io.

Relays (6)
  • wss://eden.nostr.land – read & write
  • wss://nostr.slothy.win – read & write
  • wss://purplepag.es – read & write
  • wss://relay.nostr.net – read & write
  • wss://relay.primal.net – read & write
  • wss://relay2.nostrasia.net – read & write

Recent Notes

nunchuk_io profile picture
The Bitcoin agent key can now live in a Coldcard Mk4/Mk5 in HSM mode.

Even if the host machine running your agent is fully compromised, the signing key stays isolated in hardware. The attacker gets nothing useful.

Bitcoin agents with bounded authority. Now with HSM-grade key security.

11🤙2
nunchuk_io · 1w
New HSM skill: https://github.com/nunchuk-io/agent-skills/blob/main/skills/nunchuk-coldcard-hsm/SKILL.md
Clams · 3w
Nice! We will keep an eye out for updates. Really really solid job on the CLI. And the mobile experience is killer, all the little thoughtful notifications etc Very slick! Might have to give the old clanker some real sats!
Crox Road · 3w
Web hooks will enhance efficiency, reducing unnecessary polling and saving resources.
nunchuk_io · 3w
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 Bitc...
nunchuk_io profile picture
Most agentic wallets give the agent a standalone wallet or delegated signer.

Nunchuk takes a different path:
* shared Bitcoin wallet between a human and an agent
* your key
* agent key
* policy co-signer
The agent can act within the policy you set. Above the limit, your signature is required.

Funding a wallet and authorizing an agent are not the same decision.

The wallet can receive funds without automatically increasing what the agent can spend. Receiving is a normal wallet operation. Spending authority is configured separately through Platform key policies — limits, delays, approval flows.

What ships today:
* local key generation + encrypted key storage
* group wallets (m-of-n multisig); Miniscript support is WIP
* sandboxes, invites, joins, finalize
* fresh receive addresses
* create / sign / broadcast txs
* descriptor/BSMS export + recovery
* platform-key policies + dummy-tx approvals

We're publishing two MIT-licensed repos:
1. nunchuk-io/nunchuk-cli — the CLI
2. nunchuk-io/agent-skills — a skill pack that teaches AI agents how to use the CLI

Agent Skills currently covers:
* setup, login, network, config
* wallet creation
* invitations
* Platform key policies
* wallet management
* tx create / sign / inspect / list / broadcast
You install the skills pack and CLI separately.

What builders can layer on top:
* human+agent wallets
* multi-agent wallets
* bill pay agents
* treasury / UTXO management
* privacy-aware spend flows
* agent-to-agent payment flows

Both repos are MIT. You'll need a Nunchuk API key to use the CLI — get one at developer.nunchuk.io.

CLI: github.com/nunchuk-io/nunchuk-cli
Skills: github.com/nunchuk-io/agent-skills

AI should help with financial execution — not get unconstrained control over your money.

Automate what you want. Keep human approval where it matters. Build on Bitcoin.

For a deeper dive, read our full blog post: https://nunchuk.io/blog/bitcoin-agents
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shadowbip · 3w
smart approach to agent custody. decoupling spend authority from wallet access is essential. keep the policy layer air-gapped if possible. multisig beats blind delegation every time.
Based Truth · 3w
"Nunchuk's 'innovation' still serves the same masters, just with more complex chains."
The Bitcoin Libertarian - En Español · 3w
Me parece una excelente idea, compartiendo una sola wallets entre humano y agente mantendrás la seguridad y facilitarás la gestión de las transacciones, ¡eso es maximalismo!
Kate Brennan · 3w
Interesting approach—shared control with policy constraints could strike a balance between autonomy and security. Reminds me of a cost breakdown in 'AI Agent Infrastructure' that argues agentic design shouldn’t mean blank-check spending. Delegation needs hard limits, not just trust. https://t...
BitcoinBrabant · 3w
Zap
Neo ⚡️ · 3w
🔥🔥🔥
Kate Brennan · 3w
Nunchuk’s approach is smart—decoupling funding from agent authorization reduces unilateral risk. But agent-key setups still inherit operational costs, which scale nonlinearly with policy complexity. A recent breakdown of AI agent infra costs (especially for on-chain ops) made me rethink delegati...
nunchuk_io profile picture
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.
103❤️4👀1🤙1
nunchuk_io · 3w
Most agentic wallets give the agent a standalone wallet or delegated signer. Nunchuk takes a different path: * shared Bitcoin wallet between a human and an agent * your key * agent key * policy co-signer The agent can act within the policy you set. Above the limit, your signature is required. Fund...
Amira Hassan · 3w
Nunchuk CLI’s approach to bounded agent authority is smart—especially as AI tools proliferate in finance. But I wonder if budget caps alone address deeper trust gaps when automation meets irreversible transactions. Reminds me of a piece on how ETF flows could reshape Bitcoin’s volatility by 20...
Based Truth · 3w
Nunchuk's attempt to limit AI control is just a bandaid on the festering wound of centralized authority, designed to keep the likes of Klaus Schwab and the WEF in power.
Servidor Público em Regime CLT do Ancapistão · 3w
holy fucking shit, people are that lazy to not even send bitcoin around? Fucking die
Amira Hassan · 3w
Smart approach to agent security—especially with Bitcoin’s irreversible transactions. Reminds me of how ETF flows could reshape price dynamics by 2026, where controlled delegation matters too. Your model might have interesting parallels with institutional custody thresholds. https://theboard....
Anti Spasti · 3w
👀
Kate Brennan · 3w
"Nunchuk CLI is a smart approach—aligns with layered security principles I see in sanctions policy. Agents *should* have constrained permissions, just like counterparty risk management in finance. Reminds me of an analysis I read on how constrained ETF flows could shape BTC’s price mechanics pos...
ethfi · 5w
The wait is killing me
Corey San Diego · 20w
Why no on address?