> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spacepay.solutions/llms.txt
> Use this file to discover all available pages before exploring further.

# Blockchain Concepts

> Learn about supported blockchain networks, confirmations, finality, and address management in SpacePay

# Blockchain Networks & Assets

Understanding blockchain fundamentals is essential for integrating cryptocurrency payments effectively. This guide covers the blockchain networks supported by SpacePay, confirmation requirements, finality concepts, and address management.

## Supported Chains and Assets

SpacePay supports multiple blockchain networks, each with unique characteristics and use cases. Choose the networks that best fit your business needs and customer preferences.

### Ethereum

**Supported Assets on Ethereum:**

* **Chain ID**: 1
* ETH (native)
* USDC: `0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48`
* USDT: `0xdac17f958d2ee523a2206206994597c13d831ec7`

### Polygon

**Supported Assets on Polygon:**

* **Chain ID**: 137
* POL (native)
* USDC: `0x3c499c542cef5e3811e1192ce70d8cc03d5c3359`
* USDT: `0xc2132d05d31c914a87c6611c10748aeb04b58e8f` (bridged)

### Binance Smart Chain (BSC)

**Supported Assets on BSC:**

* **Chain ID**: 56
* BNB (native)
* USDC: `0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d` (bridged)
* USDT: `0x55d398326f99059ff775485246999027b3197955` (bridged)

### Base

**Supported Assets on Base:**

* **Chain ID**: 8453
* ETH (native)
* USDC: `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`
* USDT: `0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2` (bridged)

### Avalanche

**Supported Assets on Avalanche:**

* **Chain ID**: 43114
* AVAX (native)
* USDC: `0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E`
* USDT: `0x9702230a8ea53601f5cd2dc00fdbc13d4df4a8c7`

### Monitoring Confirmations

SpacePay automatically handles all blockchain complexity for you. You don't need to worry about confirmations, finality, or blockchain technical details.

<Card title="We Handle Everything" icon="shield-alt">
  **Automatic Monitoring**

  * SpacePay monitors all blockchain confirmations and
    finality automatically.

  **No Blockchain Complexity**

  * Merchants don't need to deal with blockchain technical details.

  **Simple Integration**

  * Just integrate with our API and we handle the rest.

  **Reliable Payments**

  * We ensure payments are secure and final before marking them as complete.
</Card>