claude-dev-suite Caravan
Web-based multisig coordinator by Unchained Capital. Browser-only, no install. Open-source.
URL: caravanmultisig.com (or self-hosted).
Features
- Multi-vendor multisig: Trezor, Ledger, Coldcard, etc.
- PSBT workflow.
- Read-only by default — keys never leave devices.
- Wallet creation via descriptor + xpubs.
- Test mode for learning before mainnet.
Setup flow
- Create wallet config: pick threshold (2-of-3 etc.) + key sources.
- For each key:
- Connect HW wallet via HWI bridge (HTTP).
- Enter xpub at standard derivation.
- Save wallet config (JSON) — needed for recovery.
- Generate addresses; verify on each HW wallet.
- Sign PSBTs by passing through each device.
Compared
| Aspect | Caravan | Sparrow | Specter |
|---|---|---|---|
| Install | None (web) | Yes | Yes |
| Bitcoin Core | optional | recommended | recommended |
| Multi-sig only | yes | no | no |
| Lightning | no | partial | yes |
| Maturity | mature | mature | mature |
Use cases
- Multisig newcomers wanting browser-based flow.
- Educational: walk through multisig setup.
- Air-gapped quick coordination between users.
Common issues
- HWI bridge runs locally; if not running, no HW connection.
- Pure web means cleared cache loses wallet config — always save the JSON config file.
- Public-host caveat: even though browser-only, network requests may leak metadata; for high-value, self-host.