The value of a notification server is entirely in how little it asks of you: no account, no webhook, no service to sign up for — the notification surface is the one your operating system already has. Two consequences. It is Windows-only by construction, and it only goes one way: the assistant can tell you something happened, but nothing comes back.
A small Node.js MCP server whose whole job is to put a native Windows notification on screen. It exists for the moment a long task ends while you are looking at something else.
- One tool that raises a Windows system notification — `send_notification`
- A required `title` and `message`, so the notification says what happened without you opening anything
- An optional `sound`, defaulting to on, for when a silent banner would be missed
Windows, and Node.js. No account and no key. Clone the repository, `npm install`, then start it — the client config in the README points at a batch file wrapper, and the server can also be run directly with node against its entry script.
Build from source — clone the repository and build it, then point your client at the binary