New HSM skill: https://github.com/nunchuk-io/agent-skills/blob/main/skills/nunchuk-coldcard-hsm/SKILL.md

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.

Go for it! 😂 💪🏻💪🏻

Looking great!! Btw, we are adding web hooks so you don’t have to poll for sandbox/transaction status.

thank you!

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

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.