Custom Access Tokens for MCP

we are thinking of building a agent that searches through our BD through the supabase mcp to do data analysis for our customers. Since its customer facing we want to enable RLS or read controls on what data it can read. I noticed that supabase does not offer custom access token or restricing view prevaliages right now. jsut dowong if this is in the works or any workarounds we can do?

Thank you!!!