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Outbox MCP Server

local only

Outbox runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 25 May 2026.

Multi-channel messaging MCP server for Slack, Telegram, Email, KakaoTalk, and Discord.

—
Installs / week
not published
0
Stars
0 open issues
25 May 2026
Last commit
from GitHub
MIT
License
C#

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

            Process.Start(new ProcessStartInfo

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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Outbox — questions

Answers built from our own checks of this server.

Why is there no uptime for Outbox?
Outbox runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Outbox open source?
Yes — it is published under the MIT licence, written in C# and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.