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

# Base URL

> The root endpoint for all VTULab API requests.

All API requests to VTULab should be made using the base URL below. Our API is versioned to ensure stability as we introduce new features.

## Production Environment

The production base URL for all endpoints is:

<Card title="API Base URL" icon="globe">
  `https://api.vtulab.com/v1`
</Card>

## HTTPS Only

To protect your data and API keys, the VTULab API requires all requests to be made over **HTTPS**. Unencrypted HTTP requests will be automatically rejected.

## Versioning

The current version of the API is `v1`. We include the version number in the URL path to maintain backward compatibility for existing integrations.

***

<Tip>
  When testing your integration, you can use the same base URL with your **Test Key**. The system will automatically process the request in Sandbox mode.
</Tip>