USE CASE

FinTech Neobanks

Add crypto wallets to your banking app. Create wallets for users, enable trading, and offer yield products—all via API.

How Neobanks Use PROXY SHIELD

📱 In-App Crypto Wallets

Give every user a crypto wallet inside your app. Create MPC wallets during onboarding—no seed phrases. Users manage crypto alongside their fiat account.

📈 Crypto Trading Feature

Enable buy/sell crypto within your app. We sign the transactions, you handle the UI. Support 61+ chains including BTC, ETH, and popular altcoins.

💵 Stablecoin Savings

Offer USDC/USDT savings accounts with yield. Sign DeFi staking transactions for users. Higher APY than traditional savings.

💳 Crypto-Backed Cards

Let users spend crypto with cards. Sign transactions when users swipe. Real-time conversion to fiat at point of sale.

Integration Example

Add crypto wallet to user account:

// When user opts into crypto
async function enableCryptoForUser(userId) {
  const shield = new ProxyShield({ apiKey: process.env.PROXY_API_KEY });

  // Create MPC wallet
  const wallet = await shield.wallets.create({
    name: `neobank-user-${userId}`,
    chain: 'ethereum',
    metadata: { userId, accountType: 'retail' }
  });

  // Also create Polygon wallet for low-fee stablecoin transfers
  const polygonWallet = await shield.wallets.create({
    name: `neobank-user-${userId}-polygon`,
    chain: 'polygon'
  });

  // Update user record
  await db.users.update(userId, {
    cryptoEnabled: true,
    ethAddress: wallet.address,
    polygonAddress: polygonWallet.address
  });
}