Yes, it’s definitely possible to share a single AI key across multiple apps or services, as long as the backend is set up securely.In one of my recent projects, I worked on a platform where we use a centralized AI key across different services like a chatbot, analytics module, and document summarizer all under the same system. We made sure to track usage per service and apply access limits when needed.If you're designing something similar, just make sure to:

Keep the key server-side (not exposed in frontend code),

Use environment variables,,And monitor usage to prevent abuse.

Some platforms (like the one we built at InsideAI Web Solution) are structured this way by default, so the same key can serve multiple apps securely while still allowing detailed monitoring.