⚠️ Important: These solutions have been updated to use the stdio transport as recommended by MCP Specification 2025-06-18. The original SSE (Server-Sent Events) transport has been deprecated.

Here are the complete solutions for building MCP servers using the stdio transport in each runtime:

TypeScript - Complete stdio server implementation
Python - Python stdio server with asyncio
.NET - .NET stdio server with dependency injection

Each solution demonstrates:

Setting up stdio transport
Defining server tools
Proper JSON-RPC message handling
Integration with MCP clients like Claude

All solutions follow the current MCP specification and use the recommended stdio transport for optimal performance and security.