Google Api Key Apply Restrictions

I am implementing a flow with the Google Gemini (PaLM) API, and I now need to improve the security restrictions by implementing best practices. However, when debugging the request to obtain the reference source, the node sends an empty value.

I work on a self-hosted n8n server running with Docker. It is important for my company to set these security requirements.

Is it possible to implement this feature?

Unfortunately, this is not a job request. I need to know if this feature is possible to enforce security work in n8n.