## API Changelog

### Overview
The API changelog provides updates and details on the latest changes to the API, including new features, improvements, and deprecated endpoints.

### Changelog Entries
- **2023-01-10**: Added support for multiple response formats.
- **2023-02-15**: Improved error handling in chat completions.
- **2023-03-20**: Deprecated legacy authentication methods.

## Typescript Authentication

### Getting Started
To authenticate, you need to set up your environment following the steps below:
1. Install the SDK:
   ```bash
   npm install my-sdk
   ```
2. Initialize the SDK:
   ```typescript
   import { MySdk } from 'my-sdk';
   const sdk = new MySdk({ apiKey: 'YOUR_API_KEY' });
   ```

## Project Setup

### Prerequisites
Make sure you have Node.js installed.

### Steps
1. Create a new project:
   ```bash
   mkdir my-project
   cd my-project
   npm init -y
   ```
2. Install necessary packages:
   ```bash
   npm install axios
   ```

## REST API

### Endpoints
- **GET /api/chat**: Start a new chat session.
- **POST /api/chat**: Send a message to the chat.

### Usage Example
```typescript
const response = await sdk.chat.sendMessage('Hello!');
console.log(response);
```

## Python Integration

### Getting Started
Install the SDK for Python:
```bash
pip install my-sdk
```

### Example
```python
from my_sdk import MySdk
sdk = MySdk(api_key='YOUR_API_KEY')
response = sdk.chat.send_message('Hi there!')
print(response)
```

## Integration with Claude & Codex

### Supported Integrations
- **Claude**: You can send requests to Claude AI via the SDK.
- **Codex**: Use Codex for code generation and auto-completion.

### Example
```javascript
// Using Claude
const response = await sdk.claude.call('Generate code for a calculator.');
console.log(response);
```

## Conclusion
Refer to our documentation for more detailed explanations and examples.