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site iconDen DelimarskyModify

I am an engineer and product manager, currently working at Microsoft in the security organization helping the team ship secure and performant authentication and authorization libraries.
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Rss preview of Blog of Den Delimarsky

Better Logic For Showing Auth Windows With Your Local MCP Server

2025-04-21 08:00:00

Fix that annoying issue where authentication windows appear behind your MCP client by implementing smarter window handle discovery. This walkthrough shows you how to properly parent WAM dialogs to VS Code, Claude Desktop, and other MCP clients.

Secure Remote MCP Servers With Entra ID And Azure API Management

2025-04-20 08:00:00

Implement secure, enterprise-ready Model Context Protocol (MCP) servers protected by Entra ID authentication using Azure API Management and Azure Functions. This complete guide walks you through creating a confidential client architecture that protects sensitive tokens while enabling secure LLM tool access.

Enable Local MCP Servers To Access Entra ID Accounts

2025-04-14 08:00:00

Learn how to authenticate local Model Context Protocol servers with Entra ID using Windows Web Account Manager (WAM). This practical guide shows how to implement interactive user authentication in local MCP servers without complex OAuth flows.

Old Security Rakes In New MCP Yards

2025-04-09 08:00:00

The Model Context Protocol introduces familiar security challenges we’ve seen before. Let’s not ignore them and step on the same rakes millions stepped on before.

Improving The Model Context Protocol Authorization Spec - One RFC At A Time

2025-04-07 08:00:00

A proposed RFC for MCP authorization that lets developers leverage existing identity providers instead of implementing OAuth from scratch, making secure MCP servers easier to build without security expertise.

Introducing OpenSpartan Forerunner - A MCP Server For Halo Infinite

2025-03-26 08:00:00

Introducing OpenSpartan Forerunner: an MCP server that connects Halo Infinite game data to AI tools. Access your stats, gear, and more directly in VS Code, Claude Desktop, and other MCP-compatible LLM clients.