Nimiq Pay Mini AppPolygon

Private invoices.Protected payments.

Create confidential invoices, seal them with your Nimiq wallet, and receive USDT through protected escrow — all inside Nimiq Pay.

Create invoice View invoices

How nimSeal works

Checking

Protect

Line items, identities and tax detail are encrypted in your browser before they leave your device.

Seal

You sign the invoice with your Nimiq wallet, so the buyer can verify it came from you.

Settle

The buyer funds the exact amount in USDT through Nimiq Pay, held in escrow until release.

What stays private

Encrypted, off-chain

Line items
Customer identity
Tax details
Nonce + salt

Minimal, on-chain

Seller + buyer
USD total
Due date
32-byte commitment

An off-chain attestor decrypts the invoice, recomputes every total, and signs only the settlement facts. It is a server key, not a TEE — nimSeal never claims zero-knowledge.

Sealed by your Nimiq wallet

Each invoice is signed with your Nimiq key. The buyer's payment link verifies the signature against the on-chain facts and shows Nimiq verified · NQ… — no server, no trust required.