# 0G Network Developer Guide

> Last updated: 2026-03-30
> Source: https://docs.0g.ai

## Overview

0G (Zero Gravity) is a decentralized storage + data availability + AI compute network designed for AI applications.

## Network Information

| Parameter | Value |
|------|-----|
| Testnet Chain ID | 16600 |
| RPC | https://evmrpc-testnet.0g.ai |
| Explorer | https://chainscan-galileo.0g.ai |
| Storage API | https://storage-testnet.0g.ai |

## Three-Layer Architecture

### 1. Storage Layer (0G Storage)
Distributed storage, suitable for AI training data and model files:
```bash
# Install 0G CLI
pip install 0g-sdk

# Upload file
0g storage upload --file model.bin --network testnet

# Download file
0g storage download --hash 0x... --output model.bin
```

### 2. Data Availability Layer (0G DA)
```javascript
import { ZgClient } from '@0g-sdk/client'

const client = new ZgClient({ rpc: 'https://evmrpc-testnet.0g.ai' })

// Submit data to DA
const txHash = await client.da.submit({
  data: Buffer.from('my data'),
  namespace: 'my-app',
})
```

### 3. AI Compute Layer (0G Compute)
```python
import og_compute

# Submit AI inference task
task = og_compute.submit(
    model="llama-3-8b",
    input={"prompt": "Hello, World!"},
    network="testnet"
)
result = og_compute.wait(task.id)
```

## Grant Program

- 0G Ecosystem Fund: Focus on AI + storage integration projects
- Apply: https://0g.ai/grants
- Discord: discord.gg/0g-labs