shielded-payments

Sealed-bid auctions on Zcash: the bid is a shielded transfer, so the price never hits the chain in the clear.

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).

Kage: AI agents pay for HTTP APIs with shielded Zcash (x402 v1). Spendguard before the wallet; the merchant verifies with a viewing key, never a spend key.

Private GPU-compute market on Zcash: sealed requests, signed bids, shielded pay-per-interval, and a Leak Inspector that shows what every party learned. Built for ZECATHON 2026.

ZEC-paired coins on Meteora DBC that pay holders in ZEC, shielded in their own Zcash wallet if they opt in

Private revenue-share settlement on Zcash: import fees, apply partner agreements, approve a hashed snapshot and pay every partner with a fully shielded ZEC transaction.

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.

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.