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SebastienDegodez
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creating-dotnet-mcp-servers

Build .NET MCP servers with attribute-based tool registration and SSE/stdio transports.

192|32|Updated May 20, 2025
Search Tags:#mcp#server#dotnet#sse#tool-registration#aot#json-serialization
One-click install
npx skills add https://github.com/SebastienDegodez/copilot-instructions --skill creating-dotnet-mcp-servers
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: creating-dotnet-mcp-servers
Source: https://github.com/SebastienDegodez/copilot-instructions/tree/main/skills/creating-dotnet-mcp-servers
Command: npx skills add https://github.com/SebastienDegodez/copilot-instructions --skill creating-dotnet-mcp-servers

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

MCP servers in .NET require structured patterns for tool registration, transports, and JSON serialization to be production-ready and easily testable. This skill provides a standardized approach to build MCP servers, configure SSE/stdio transports, enable AOT-friendly JSON contexts, and validate server setup.

Core Features & Use Cases

  • Declarative tool classes using MCP attributes to expose server tools.
  • Transport configuration with SSE and Stdio and DI-based deployment patterns.
  • AOT-friendly JSON serialization context and robust testing guidance for MCP servers.
  • Use Case: When building a modular MCP server for a .NET project, you can structure your domain, application, and API projects following recommended patterns.

Quick Start

Create a new .NET project, add MCP packages, and register a tool class to expose commands over SSE.

Frequently Asked Questions about creating-dotnet-mcp-servers

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build an MCP server in .NET?▼

MCP servers in .NET require structured patterns for tool registration, transport configuration, and JSON serialization. This approach provides declarative tool classes, DI-based server configuration, and robust testing to ensure production readiness.

How do I register tools in a .NET MCP server?▼

Register tools declaratively using MCP attributes on tool classes to expose server commands over SSE or stdio transports. This attribute-based approach eliminates manual wiring and streamlines tool registration.

Can I use AOT-friendly JSON serialization with .NET MCP servers?▼

Yes, .NET MCP servers support AOT-friendly JSON serialization contexts. Applying these contexts ensures deterministic JSON serialization and compatibility with ahead-of-time compilation for production deployments.

What transports are supported for .NET MCP servers?▼

.NET MCP servers support SSE and stdio transports. You configure these transports using DI-based deployment patterns to expose registered tools and manage server endpoints deterministically.

Does building an MCP server in .NET require dependency injection?▼

Building a production-ready MCP server in .NET uses DI-based server configuration for transport setup and deployment. This pattern ensures robust testing and modular domain, application, and API project structuring.

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