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mcp-csharp-create

Creates C# MCP server projects with stdio or HTTP ASP.NET Core transports.

1|Updated May 21, 2026
Search Tags:#mcp#dotnet#http#c##tools#stdio#server scaffolding
One-click install
npx skills add https://github.com/1k-off/umbraco-observability-playground --skill mcp-csharp-create-1k-off
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-csharp-create
Source: https://github.com/1k-off/umbraco-observability-playground/tree/main/.agents/skills/mcp-csharp-create
Command: npx skills add https://github.com/1k-off/umbraco-observability-playground --skill mcp-csharp-create-1k-off

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill removes the friction of creating a new Model Context Protocol (MCP) server in C# by giving you a reliable, step-by-step setup for tools, prompts, and resources.

Core Features & Use Cases

  • Server scaffolding with the C# SDK: creates a new MCP server project using dotnet new mcpserver (or a safer dotnet new web fallback) for rapid startup.
  • Tool, prompt, and resource implementation: helps you implement [McpServerToolType]/[McpServerTool], [McpServerPromptType]/[McpServerPrompt], and [McpServerResourceType]/[McpServerResource] with correct LLM-visible metadata via [Description].
  • Transport configuration (stdio and HTTP): configures MCP hosting for local stdio servers or ASP.NET Core HTTP servers using MapMcp() and appropriate host setup.

Quick Start

Tell me: "Create a new C# MCP server named WeatherMcpServer using stdio transport, add one tool that wraps my weather API, and show the Program.cs wiring so it starts successfully."

Frequently Asked Questions about mcp-csharp-create

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

FAQPage Schema
How do I create an MCP server in C#?▼

To create an MCP server in C#, scaffold a new project using `dotnet new mcpserver` or a `dotnet new web` fallback, then configure Program.cs hosting with the ModelContextProtocol SDK to expose tools, prompts, and resources over stdio or HTTP.

How do I configure stdio transport for a C# MCP server?▼

Configure stdio transport for a C# MCP server by setting up local subprocess hosting in Program.cs, ensuring the server starts cleanly without stdout logging corruption to maintain valid standard input/output communication.

How do I expose tools and prompts in a C# Model Context Protocol server?▼

Expose tools and prompts in a C# MCP server by implementing `[McpServerToolType]`/`[McpServerTool]` and `[McpServerPromptType]`/`[McpServerPrompt]` attributes with `[Description]` metadata for correct LLM-visible schema generation.

Can I host an MCP server using ASP.NET Core HTTP?▼

Yes, you can host an MCP server using ASP.NET Core HTTP by configuring the HTTP transport with `MapMcp()` and appropriate host setup in Program.cs for network-accessible tool, prompt, and resource discovery.

What is the best way to avoid stdout logging corruption in stdio MCP servers?▼

Avoid stdout logging corruption in stdio MCP servers by validating server startup logs and ensuring standard output is reserved strictly for protocol messaging, redirecting diagnostic logs to standard error.

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