zip-321

Privacy-first merchant checkout for Zcash. Create invoices, share ZIP 321 payment links/QR codes, and detect shielded payments with a watch-only incoming viewing key, so the server never holds spending keys. Rust backend, live testnet demo. Built for Zecathon (Shielded Payments track).

Shielded ZEC payments with a username, a link, an invoice or a widget. The wallet runs in your browser; the server never holds a key and never sees a payment.

Static analysis that catches Zcash privacy leaks before they ship — 14 rules, zero dependencies, fully offline.

Pay and talk when the network won't: a carrier for shielded Zcash payments and sealed notes between devices. Zcash testnet only. ZECATHON, Shielded Payments.