Overview

Alias: Throughout this documentation and in code examples, we use HDWaaS as the short name for 2settle HD Wallet Service.

What is 2settle HD Wallet Service?

Wallet-as-a-Service allows you to generate unique HD wallet addresses for each customer deposit. Instead of managing your own wallet infrastructure, you can:

• Generate addresses on demand - Each customer gets a unique deposit address
• Monitor deposits automatically - We watch the blockchain for incoming transactions
• Receive webhook notifications - Get notified when deposits are detected and confirmed
• Track everything - Full visibility into all generated addresses and their status

Supported Cryptocurrencies

Crypto	Networks	Use Case
BTC	bitcoin	Native Bitcoin payments
ETH	ethereum	Native Ethereum payments
BNB	bsc	Native BNB Chain payments
TRX	tron	Native Tron payments
USDT	ethereum, erc20, bsc, bep20, tron, trc20	Stablecoin payments
USDC	ethereum, erc20, bsc, bep20	Stablecoin payments

How It Works

1. Your App                    2. HDWaaS API                 3. Blockchain
   │                              │                              │
   │─── Create Wallet ───────────>│                              │
   │<── Return Address ───────────│                              │
   │                              │                              │
   │    (Customer sends crypto)   │                              │
   │                              │<──── Deposit Detected ───────│
   │<── Webhook: deposit.detected │                              │
   │                              │                              │
   │                              │<──── Confirmations ──────────│
   │<── Webhook: deposit.confirmed│                              │
   │                              │                              │

Authentication

HDWaaS uses the same HMAC-SHA256 request signing as the Payment Engine — see Authentication for the signature generation details. Every request needs X-API-Key, X-Timestamp, and X-Signature headers.