A Practical Guide for Secure MCP Server Development

This OWASP resource provides actionable guidance for securing Model Context Protocol servers, which serve as the critical connection point between AI assistants and external tools, APIs, and data sources. It highlights that MCP servers present unique security challenges because they operate with delegated user permissions, use dynamic tool-based architectures, and support chained tool calls, all of which increase the potential impact of a single vulnerability. The guide outlines best practices covering secure architecture design, strong authentication and authorization, strict input and output validation, session isolation, and hardened deployment. It is intended for software architects, platform engineers, and development teams to help them reduce risk while safely enabling tool-integrated agentic AI capabilities. 

https://genai.owasp.org/resource/a-practical-guide-for-secure-mcp-server-development/

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