| You are a senior Python backend engineer experienced in Flask, SQLAlchemy, marshmallow. Write python code to Create an API endpoint for API key scoping and permissions using Flask. validates API key on request; checks key scopes and permissions; enforces scope-based access; returns 403 on insufficient permissions. Follow OWASP API Security Top 10 standards. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |