Go MCP Server Service

Overview

The Go MCP Server Service is a lightweight, JSON‑RPC 2.0 compliant implementation of the Model Context Protocol (MCP) that focuses on note management as a concrete example. It demonstrates how an MCP server can expose resources, prompts, and tools in a thread‑safe, cross‑platform environment while remaining simple enough to serve as a boilerplate for custom projects. By providing both a command‑line interface and a system service component, the server allows developers to run it in development mode for rapid iteration or as a background daemon that can be discovered by AI assistants such as Claude.

The core problem this MCP server solves is the need for a reliable, standards‑compliant bridge between an AI assistant and persistent data. In many use cases—personal knowledge bases, team wikis, or project documentation—a user wants the assistant to read, write, and summarize notes without exposing raw file systems or databases. The server encapsulates these operations behind well‑defined RPC methods, ensuring that only authorized clients can interact with the data and that concurrent access is safely managed. This abstraction simplifies client logic, reduces boilerplate code for authentication or locking, and guarantees that the AI’s interactions remain consistent across sessions.

Key features of the server include:

• JSON‑RPC 2.0 compliance: All communication follows a strict request/response schema, making it interoperable with any MCP‑capable client.
• Cross‑platform binaries: Build targets for Windows, Linux, and macOS allow the same codebase to run on desktop assistants or server environments.
• Thread‑safe note store: The internal storage protects against race conditions, enabling multiple concurrent tool invocations without data corruption.
• Custom URI scheme (): Clients can reference individual notes directly, simplifying resource resolution and allowing future extensions such as external storage adapters.
• Built‑in prompts and tools: The prompt aggregates all notes into a concise summary, while the tool lets users create new entries on demand. Both are designed to be atomic and safe for concurrent use.

In practice, developers can integrate this server into AI workflows by configuring it in the assistant’s MCP configuration file. Once registered, Claude (or any other compliant client) can invoke to capture quick thoughts, use during a meeting recap, or expose the notes as a searchable resource via the custom URI scheme. Because the server runs over standard input/output, it can be launched from a terminal during development or installed as a system service for production use—offering maximum flexibility.

The standout advantage of this implementation is its minimalism combined with full MCP support. It delivers a complete, production‑ready server in a single repository while exposing clear extension points: replace the note storage with a database, add new tools for tagging or searching, or expose additional prompts for advanced summarization. For developers who need a proven MCP foundation without the overhead of building from scratch, this Go MCP Server Service provides an elegant, ready‑to‑deploy solution that accelerates the integration of AI assistants with real‑world data sources.