MCP C# SDK 1.0 arrives with improved authorization server discovery

Microsoft’s official C# SDK for implementing Model Context Protocol (MCP) servers and clients has reached its 1.0 milestone release. The update brings full support for the 2025-11-25 version of the MCP Specification, highlighted by enhanced authorization server discovery and icon metadata for tools, resources, and prompts. MCP C# SDK 1.0 was unveiled March 5 and…

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