How To Create An MCP Server To Connect Your App With LLMs
Security Boulevard, Wednesday, April 22nd, 2026
A guide to building MCP servers that connect applications with LLMs, including security best practices.
This article explains how to create Model Context Protocol (MCP) servers that enable Large Language Models to access tools and data from applications.
It provides a step-by-step tutorial for building a simple MCP server using Python and FastMCP, demonstrates testing with MCP Inspector, and shows how to integrate it with Claude.
The article emphasizes critical security challenges specific to MCPs, including loose access controls and data leaks, and outlines best practices for securing MCP servers through proper authentication, authorization, input sanitization, and activity auditing.