# Welcome to HasaPay

**Enterprise Stablecoin Wallet Infrastructure for Fintechs**

HasaPay provides a complete Wallet-as-a-Service (WaaS) platform that enables businesses to integrate multi-chain cryptocurrency wallets into their applications with a simple API.

***

## Why HasaPay?

| Feature                       | Description                                                         |
| ----------------------------- | ------------------------------------------------------------------- |
| 🔐 **Non-Custodial Security** | Your keys, your crypto. We never store private keys on our servers. |
| ⚡ **Multi-Chain Support**     | Ethereum, Polygon, Tron, Base, BSC, Solana, Bitcoin, and Aptos.     |
| 🚀 **Simple Integration**     | RESTful API with comprehensive SDKs. Go live in hours, not weeks.   |

***

## Quick Links

| Resource                                                                | Description                                |
| ----------------------------------------------------------------------- | ------------------------------------------ |
| [Quick Start](https://docs.hasapay.com/documentation/quickstart)        | Get your first wallet created in 5 minutes |
| [Authentication](https://docs.hasapay.com/documentation/authentication) | Learn about JWT and HMAC authentication    |
| [API Reference](https://docs.hasapay.com/api-reference/overview)        | Browse all available endpoints             |

***

## Get Started in 5 Minutes

### Step 1: Create an Account

Sign up at [dashboardtest.hasapay.com](https://dashboardtest.hasapay.com) to get your API credentials.

### Step 2: Get Your API Keys

After email verification, you'll receive:

* **API Key** - For identifying your organization
* **Secret Key** - For signing HMAC requests (keep this safe!)

### Step 3: Make Your First API Call

```bash
curl -X POST https://apitest.hasapay.com/api/v1/wallets \
  -H "Content-Type: application/json" \
  -H "X-API-Key: your_api_key" \
  -H "X-Timestamp: $(date +%s)" \
  -H "X-Request-ID: $(uuidgen)" \
  -H "X-Signature: your_hmac_signature" \
  -d '{
    "chain": "ethereum",
    "network": "sepolia",
    "label": "My First Wallet"
  }'
```

### Step 4: Start Building

Use our comprehensive API to:

* ✅ Create HD wallets across multiple chains
* ✅ Generate unlimited deposit addresses
* ✅ Monitor incoming deposits in real-time
* ✅ Send transactions programmatically
* ✅ Track balances and transaction history

***

## Supported Chains

| Chain    | Mainnet | Testnet   | Native Token |
| -------- | ------- | --------- | ------------ |
| Ethereum | ✅       | ✅ Sepolia | ETH          |
| Polygon  | ✅       | ✅ Amoy    | MATIC        |
| Tron     | ✅       | ✅ Shasta  | TRX          |
| Base     | ✅       | ✅ Sepolia | ETH          |
| BSC      | ✅       | ✅ Testnet | BNB          |
| Solana   | ✅       | ✅ Devnet  | SOL          |
| Bitcoin  | ✅       | ✅ Testnet | BTC          |
| Aptos    | ✅       | ✅ Testnet | APT          |

***

## Supported Assets

HasaPay supports native tokens and popular stablecoins on each chain:

* **USDT** - Tether USD
* **USDC** - USD Coin
* **DAI** - Dai Stablecoin
* **BUSD** - Binance USD
* **And more...** - Enable any ERC-20/TRC-20/SPL token

***

## Authentication Methods

| Method   | Used For                         | Headers                                                   |
| -------- | -------------------------------- | --------------------------------------------------------- |
| **JWT**  | Dashboard, team, settings        | `Authorization: Bearer <token>`                           |
| **HMAC** | Wallets, transactions, addresses | `X-API-Key`, `X-Timestamp`, `X-Signature`, `X-Request-ID` |

***

## Testnet vs Mainnet

| Feature      | Testnet (Sandbox)  | Mainnet       |
| ------------ | ------------------ | ------------- |
| Real Funds   | ❌ Test tokens only | ✅ Real crypto |
| KYC Required | ❌ No               | ✅ Yes         |
| Rate Limits  | Lower              | Higher        |

> 💡 **Tip:** Start with Testnet to build and test your integration, then upgrade to Mainnet when ready for production.

***

## Need Help?

* 📧 **Email:** <support@hasapay.com>
* 📚 **Documentation:** You're here!

***

## Ready to Build?

[**Sign Up Free →**](https://dashboardtest.hasapay.com/register) | [**View API Reference →**](https://docs.hasapay.com/api-reference/overview)