Multi-Chain Wallet Development Kit

A comprehensive, AI-enhanced SDK for building secure, non-custodial wallets with unified blockchain access.

Features

🔗 Multi-Chain Support

• Ethereum, Polygon, Arbitrum
• Bitcoin
• TON Network
• Extensible architecture for new chains

🤖 AI-Powered Features

• Transaction risk analysis
• Gas fee optimization
• Cross-chain route suggestions
• Portfolio insights and recommendations
• Suspicious activity detection

🔐 Security First

• Non-custodial design
• Stateless architecture
• Hardware wallet support
• Secure key derivation

Installation

npm install @tether/multi-chain-wallet-sdk

Quick Start

import { WalletSDK } from '@tether/multi-chain-wallet-sdk';

// Initialize SDK
const sdk = new WalletSDK({
  aiEnabled: true,
  networks: ['ethereum', 'polygon', 'bitcoin'],
  apiKeys: {
    ethereum: 'your-infura-key',
    polygon: 'your-polygon-key'
  }
});

// Create a new wallet
const { mnemonic, accounts } = await sdk.createWallet();
console.log('Wallet created:', mnemonic);
console.log('Accounts:', accounts);

// Get balances across all chains
const ethAccount = accounts.find(acc => acc.chain === 'ethereum');
const balances = await sdk.getAllBalances(ethAccount.address);
console.log('Balances:', balances);

// AI-powered transaction analysis
const transaction = {
  from: ethAccount.address,
  to: '0x742d35Cc6634C0532925a3b8D8b3f8B2C3F5C8D1',
  value: '1.5',
  chain: 'ethereum'
};

const analysis = await sdk.analyzeTransaction(transaction);
console.log('AI Analysis:', analysis);

// Send transaction
if (analysis.risk === 'low') {
  const txHash = await sdk.sendTransaction(transaction);
  console.log('Transaction sent:', txHash);
}

API Reference

Core Methods

createWallet(mnemonic?: string)

Creates a new wallet with accounts for all supported chains.

importWallet(mnemonic: string)

Imports an existing wallet from mnemonic phrase.

getBalance(address: string, chain: SupportedChain)

Gets the native token balance for a specific address and chain.

sendTransaction(transaction: Transaction)

Sends a transaction with AI-powered risk analysis.

AI Features

analyzeTransaction(transaction: Transaction)

Performs comprehensive risk analysis on a transaction.

predictGasFees(chain: SupportedChain)

Predicts optimal gas fees based on network conditions.

suggestOptimalRoute(fromChain, toChain, amount)

Suggests the best cross-chain route for token transfers.

generatePortfolioInsights(addresses)

Analyzes portfolio diversification and provides recommendations.

Configuration

interface WalletConfig {
  aiEnabled?: boolean;
  networks?: SupportedChain[];
  apiKeys?: {
    ethereum?: string;
    polygon?: string;
    arbitrum?: string;
    bitcoin?: string;
    ton?: string;
  };
}

Supported Chains

| Chain | Type | Status | Features | |-------|------|--------|----------| | Ethereum | EVM | ✅ | Full support with ERC-20 tokens | | Polygon | L2/EVM | ✅ | Low-fee transactions and DeFi | | Arbitrum | L2/EVM | ✅ | Optimistic rollup scaling | | Bitcoin | UTXO | ✅ | Native Bitcoin transactions | | TON | Non-EVM | ✅ | High-performance blockchain |

Examples

See the /examples directory for complete implementation examples:

• Basic wallet operations
• Cross-chain transfers
• DeFi integrations
• AI-powered features
• React application integration

Development

# Install dependencies
npm install

# Build the SDK
npm run build

# Run tests
npm test

# Watch mode for development
npm run dev

Contributing

1. Fork the repository
2. Create your feature branch
3. Add tests for your changes
4. Ensure all tests pass
5. Submit a pull request

License

MIT License - see LICENSE file for details.