Foundation Passport
Bitcoin Accounting
Foundation Passport + Clams
xPub DescriptorFoundation Passport is an air-gapped, open-source hardware wallet with a beautiful color display. Export your xPub or descriptor via QR code or microSD. Clams tracks your wallet while your signing keys stay completely air-gapped. Full accounting visibility without compromising security.
What Clams tracks
- All addresses from your wallet derivation paths
- Incoming and outgoing transactions
- Individual UTXOs with cost basis
- Transaction fees paid
- Capital gains on each spend
How it works
Export xPub or descriptor
On your Passport, export an xPub (single sig) or descriptor via QR code or microSD. Your signing keys stay completely air-gapped.
Add connection in Clams
In Clams, add a new connection and select xPub or Descriptor. Paste or scan the exported value.
Sync transaction history
Clams discovers all addresses and imports your full transaction history.
Resources
Passport connection guide
Official docs for exporting wallet data from Passport
Video walkthrough: xPub wallet setup
Video walkthrough: Descriptor wallet setup
Frequently asked questions
What data does Clams import from Foundation Passport?
Clams imports all addresses derived from your xPub or descriptor, incoming and outgoing transactions, UTXOs, and calculates cost basis per UTXO. Your signing keys never leave the Passport.
Does Clams access my private keys?
No. Clams uses watch-only access via xPub or descriptor. Your signing keys stay air-gapped on your Passport. These only allow Clams to view addresses and transactions, not spend funds.
Can I export via QR code or microSD?
Yes. Foundation Passport supports both QR code and microSD export methods. Export your xPub or descriptor using whichever method you prefer, then add it to Clams.
How do I get capital gains reports from my Passport transactions?
Export your xPub or descriptor from Passport via QR or microSD and add it to Clams. Clams calculates cost basis for every UTXO and tracks capital gains when you spend. Export reports from the Exports widget.
Do I need my Passport connected to sync new transactions?
No. Once you've added the xPub or descriptor to Clams, you can sync at anytime. Your Passport stays safely air-gapped.
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