flask-mcp-server is an advanced, Flask-based server designed to implement the Model Context Protocol (MCP) in Python. It can be easily integrated into existing Flask applications or deployed as a standalone service, providing a unified `/mcp` endpoint for both JSON-RPC and SSE communication, targeting the MCP 2025-06-18 specification. This server simplifies the development of AI agents and services by offering a robust registry for tools, resources, prompts, and completion providers, complete with built-in security features like API keys and HMAC authentication, rate limiting, and discovery mechanisms, making it ideal for scalable AI-driven applications.