{"slug": "building-and-securing-mcp-servers-with-fastmcp", "title": "Building and securing MCP servers with FastMCP", "summary": "FastMCP, a framework for building MCP servers, faces security and access control challenges when connecting to real company data. Developers must address authentication, logging, and tool selection to safely deploy MCPs in production environments, particularly in fintech.", "body_md": "Most MCP tutorials stop at a server that adds two numbers over stdio. That’s the easy 10%. The hard part, and the part nobody writes up, is everything you hit the moment you want to put an MCP in front of real company data: who’s allowed to call what, how you authenticate them, what you log, and how you stop the model drowning in eighty tools it doesn’t need.\n\nI’ve spent a big chunk of the last few months living in this, including a run of conversations with Australian businesses and a few US fintech companies trying to wire MCPs into real systems. The question that comes up every time is less about whether you can build a tool and more about whether you can safely let one reach production data, and the fintechs especially won’t let you hand-wave it.", "url": "https://wpnews.pro/news/building-and-securing-mcp-servers-with-fastmcp", "canonical_source": "https://coles.codes/posts/securing-mcp-servers-fastmcp/", "published_at": "2026-07-10 00:00:00+00:00", "updated_at": "2026-07-10 11:38:51.404712+00:00", "lang": "en", "topics": ["ai-tools", "ai-infrastructure", "ai-safety", "ai-policy"], "entities": ["FastMCP"], "alternates": {"html": "https://wpnews.pro/news/building-and-securing-mcp-servers-with-fastmcp", "markdown": "https://wpnews.pro/news/building-and-securing-mcp-servers-with-fastmcp.md", "text": "https://wpnews.pro/news/building-and-securing-mcp-servers-with-fastmcp.txt", "jsonld": "https://wpnews.pro/news/building-and-securing-mcp-servers-with-fastmcp.jsonld"}}