claude-dev-suite

claude-dev-suite/claude-dev-suite

Skill Claude Code

Coldcard hardware wallets (Coinkite): Mk4, Mk5, Q. Bitcoin-only firmware, airgap support via SD card / NFC / QR, BIP85, MuSig2 (Edge firmware), Trick PINs, and the July 2026 seed-entropy advisory. USE WHEN: integrating with Coldcard, supporting Mk4 / Mk5 / Q, designing airgap signing flows, assessing whether a seed…

claude-dev-suite/claude-dev-suite

Skill Claude Code

HWI (Hardware Wallet Interface): standardized Python API across HW vendors (Trezor, Ledger, Coldcard, BitBox02, Jade, etc.). Used by Bitcoin Core, Sparrow, Specter for cross-vendor signing. USE WHEN: integrating multi-vendor HW signing, building wallets that support several HW.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Blockstream Jade: open-source HW wallet. Optional offline mode via QR, or SD / USB on Jade Plus. Liquid + Bitcoin support, "Pinserver" online mode for blind signing. USE WHEN: integrating with Jade, supporting Liquid + Bitcoin signing.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Keystone 3 Pro: airgap HW wallet with QR + microSD, color touchscreen, multi-currency support, fingerprint auth. USE WHEN: integrating Keystone, evaluating mid-priced HW options.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Krux: DIY airgap signer running on Sipeed M5StickV / Maix Amigo. Open-source, multi-language, stateless. USE WHEN: integrating Krux, evaluating M5StickV-based signers.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Ledger hardware wallets: Stax, Flex, Nano Gen5, Nano X, Nano S Plus. BOLOS app architecture, Ledger Wallet (formerly Ledger Live), secure element, anti-klepto. USE WHEN: integrating with Ledger, supporting Ledger in app, debugging PSBT signing or HW Recovery service issues.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Multi-vendor multisig: combining HW wallets from different vendors (Trezor + Ledger + Coldcard) for diversification. Coordinator-mediated setup, descriptor sharing, threat model. USE WHEN: designing multi-vendor custody, implementing 2-of-3 multisig with diverse hardware.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Foundation Passport: Passport Core is the QR-only airgap HW wallet - no USB connectivity for signing, camera + microSD only. Passport Prime (GA 2026) is the connected KeyOS security platform. Open-source firmware. USE WHEN: integrating Passport, designing strict airgap flows.

claude-dev-suite/claude-dev-suite

Skill Claude Code

PSBT signing flow patterns across HW vendors: USB direct, microSD airgap, QR airgap, NFC, multi-device coordination, silent-payment PSBT fields (BIP375/BIP376). USE WHEN: designing HW signing UX, debugging cross-device PSBT flow, supporting multi-vendor multisig or silent payments.

claude-dev-suite/claude-dev-suite

Skill Claude Code

SeedSigner: DIY Bitcoin signing device. Raspberry Pi Zero + camera screen. Boots from microSD, no permanent state. Stateless airgap signing. USE WHEN: building / supporting SeedSigner, designing stateless signing flows.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Specter DIY: open-source HW wallet built on STM32 dev board with display. By the Specter team. USE WHEN: building Specter DIY, evaluating DIY HW signing options.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Trezor hardware wallets: Model T, Model One, Trezor Safe 3, Safe 5, Safe 7. Trezor Suite, trezorctl, USB protocol, BIP32 derivation, passphrase support, Shamir Backup. USE WHEN: integrating with Trezor, supporting Trezor in app, troubleshooting Trezor signing.

claude-dev-suite/claude-dev-suite

Skill Claude Code

BlueWallet: mobile Bitcoin + Lightning wallet (iOS/Android). Lightning via self-hosted LndHub, plus a gated Ark/Arkade wallet. Multi-wallet support. USE WHEN: mobile wallet integrations, evaluating BlueWallet vs Phoenix / Breez.

claude-dev-suite/claude-dev-suite

Skill Claude Code

BTCPay Server: open-source merchant payment processor. Self-hosted, supports BTC + Lightning + altcoins, plugin ecosystem, Lightning Address resolver, point-of-sale. USE WHEN: deploying merchant payments, integrating with BTCPay, building plugins.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Caravan: open-source web-based multisig coordinator (no install). Read-only by default; HW wallet support via HWI bridge. USE WHEN: setting up multisig without installing software, educational multisig flows.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Electrs: Roman Zeyde's Electrum-protocol indexer in Rust. Lightweight, serves Electrum clients; BIP157 filter scan stays on Bitcoin Core. USE WHEN: deploying personal Electrum server, integrating LN with Electrum backend, evaluating indexers.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Electrum Wallet: classic Python desktop wallet. Lightweight, runs on most platforms, plugin ecosystem, hardware wallet support. USE WHEN: evaluating mature Bitcoin wallet, integrating Electrum protocol clients.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Esplora: Blockstream's HTTP-based block explorer + indexer. REST API at /api/ . Powers blockstream.info, mempool.space's earlier versions, and self-hosted explorers. USE WHEN: deploying a personal block explorer, integrating with Esplora REST API, building wallet / monitoring on Esplora-style endpoint.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Fulcrum: Calin Culianu's Electrum-protocol indexer in C++. Faster than electrs for high-volume queries. Serves Electrum clients + LN nodes. USE WHEN: deploying high-load Electrum server, comparing with electrs.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Open-source mempool explorer + REST/WebSocket APIs. Industry-leading mempool visibility.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Self-hosted Bitcoin node distros: Umbrel, Start9 StartOS, RaspiBlitz, MyNode, Citadel. Pre-configured Bitcoin + Lightning + apps. USE WHEN: deploying personal node infrastructure, choosing between distros.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Sparrow Wallet: power-user desktop wallet for Bitcoin. PSBT-first, HW wallet support, multisig coordination, Silent Payments, PayJoin, BIP47. USE WHEN: power-user wallet workflows, evaluating Sparrow vs Specter / Electrum.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Specter Desktop: open-source GUI for Bitcoin Core + multisig coordination + HW wallet. Designed for self-custody power users. USE WHEN: setting up multisig with Specter, evaluating coordinator options.

claude-dev-suite/claude-dev-suite

Skill Claude Code

Ark protocol: VTXOs (Virtual Transaction Outputs) batched off-chain with periodic on-chain settlement. ARKADE (Ark Labs) is the first mainnet implementation. ASP (Ark Service Provider) coordinates rounds; users keep unilateral exit. USE WHEN: building Ark integrations, evaluating Ark vs Lightning, designing batched…