What MCP specification version does MCP Go support?
MCP Go implements MCP specification version 2025‑11‑25, with backward compatibility for versions 2025‑06‑18, 2025‑03‑26, and 2024‑11‑05.
@mark3labs
基本信息
A Go implementation of the Model Context Protocol (MCP), enabling seamless integration between LLM applications and external data sources and tools.
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MCP Go is a Go implementation of the Model Context Protocol (MCP), enabling developers to build servers that expose data and functionality to LLM applications in a secure, standardized way. It provides a high-level, easy‑to‑use SDK for creating MCP servers with minimal boilerplate.
Install the package with go get github.com/mark3labs/mcp-go, then create an MCP server using server.NewMCPServer(), add tools, resources, or prompts, and start the server with server.ServeStdio(). The README includes code examples for a calculator tool and a static resource.
MCP Go implements MCP specification version 2025‑11‑25, with backward compatibility for versions 2025‑06‑18, 2025‑03‑26, and 2024‑11‑05.
No, MCP Go is under active development. Core features are working, but some advanced capabilities are still in progress.
MCP Go is a Go library; you need the Go programming language to use it.
The README demonstrates starting a server using stdio transport with `server.ServeStdio(s)`. Other transports are mentioned in the extras section of the documentation.
A server can expose **Resources**
A search tool helps dev to solve the naming things problem.

Handl speaks the Model Context Protocol. Your whole billing operation — projects, invoices, clients, reports, approvals — as tools any AI assistant can call, inside your autonomy rules.

See and control a real Windows PC you own — from any MCP client, locally or remotely. Observe (UIA + screenshots), click/type/drag/scroll, launch apps, owner Live View. BYOH: your machine, your key.
🚀 The fast, Pythonic way to build MCP servers and clients.

Model Context Protocol Servers
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