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

# Retrieve Public URLs for Exposed Ports

> Retrieve all public HTTPS URLs for exposed sandbox ports (3000, 1337, 1338) using the Python SDK.

The `get_public_urls()` method returns all available **public HTTPS endpoints** for your active sandbox container in a single dictionary.

By default, Fermion automatically exposes ports **3000**, **1337**, and **1338**, each corresponding to its own unique public URL.\
This is useful for connecting multiple running services inside your sandbox, for example: a frontend (port 3000), API (port 1337), and WebSocket server (port 1338).

***

### `get_public_urls() -> dict[int, str]`

**Description:**\
Retrieves all currently available public HTTPS URLs for your sandbox, mapped by port number.

***

**Parameters:**\
*None*

***

**Returns:**

```python theme={null}
{
  3000: str,  # e.g. "https://abc123xyz-3000.run-code.com"
  1337: str,  # e.g. "https://abc123xyz-1337.run-code.com"
  1338: str   # e.g. "https://abc123xyz-1338.run-code.com"
}
```

**Example**

```python theme={null}
import asyncio
from fermion_sandbox import Sandbox

async def main():
    sandbox = Sandbox(api_key="your-api-key")
    await sandbox.create(should_backup_filesystem=True)

    urls = sandbox.get_public_urls()

    print("Available Public URLs:")
    print("Port 3000:", urls[3000])
    print("Port 1337:", urls[1337])
    print("Port 1338:", urls[1338])

    # Example usage in an app config
    config = {
        "web_url": urls[3000],
        "api_url": urls[1337],
        "socket_url": urls[1338]
    }

    print("App Configuration:", config)

asyncio.run(main())
```