Try it, live.

Encrypt, deposit, set limits, and send a real confidential payment on Sepolia. No amount ever appears in plaintext on-chain.

Wallet

Not connected

Before you start: MetaMask on Sepolia with at least 0.01 ETH for gas. Alchemy Faucet ↗

Agent IDs

PAYER ID

SERVICE ID

Registers payer and service in AgentVault and SpendPolicy.

Encrypt & Deposit

Amount encrypted client-side via Zama Relayer SDK before hitting the chain.

DEPOSIT AMOUNT

Set Spend Limit

Encrypted per-service cap. PaymentGate runs FHE.le against this on ciphertext.

SPEND LIMIT

Set Frequency Limit

Cap how many payments this agent can send to this service within a rolling 24h window. The count stays encrypted.

MAX PAYMENTS PER WINDOW

Grant PaymentGate Access

Allows PaymentGate to run FHE checks on your encrypted balance, limit, and frequency count.

Send Confidential Payment

Encrypts the amount, runs FHE.le checks on balance, limit, and frequency. FHE.select resolves transfer. Only approved or declined is ever public.

PAYMENT AMOUNT (must be ≤ limit)

All encrypted values are generated client-side using the Zama Relayer SDK. No amount is ever submitted in plaintext. The only public trace is a PaymentProcessed event on Sepolia.