Arbitrum Sepolia · Three contracts · One click

Deploy ShieldCard
for Your Team

Your own confidential treasury control plane on Arbitrum Sepolia. Encrypted policy enforcement, scoped auditor access, and a tamper-evident settlement rail — deployed in under two minutes.

Prerequisites

MetaMask connected
Arbitrum Sepolia network
Testnet ETH available (≥ 0.01 ETH)

Deploy Contracts

Deploy MockUSDC
Deploy ShieldCardControlPlane
Deploy ShieldCardSettlement
Save instance

Built for Real Teams

Several Web3 teams are currently in private testing with ShieldCard, managing their internal treasury operations with confidential spend controls. Interested in early access for your team? Reach out via GitHub or Twitter.

What you get

Encrypted Policy Enforcement

Spend thresholds and approval rules evaluated on ciphertext using Fhenix CoFHE. No plaintext ever hits the chain.

Testnet Settlement Rail

Approved requests settle via MockUSDC on Arbitrum Sepolia. Hash-chained receipts form a tamper-evident audit trail.

Scoped Auditor Access

Grant per-request decryption permits to a designated auditor. Scope is enforced by the FHE ACL — not by access controls you have to remember to set.

Tamper-Evident Audit Trail

Every decision is chained to the previous receipt hash. Any tamper attempt breaks verification at /verify.