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Arbitype MCP Server

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Arbitype runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 22 Sep 2026.

Typed decision tools for AI agents, powered by TypeSafe Jev.

Installs / week
pypi · arbitype
0
Stars
0 open issues
22 Sep 2026
Last commit
no recent releases
MIT
License
Python

What the code does

We read the source, 54 min ago · rules 3dff92dd89df

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.

Runs a command on install [пакет] package.json:1
setup.py: выполняет код при установке пакета

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

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add arbitype -- uvx arbitype
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "arbitype": {
      "args": [
        "arbitype"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.arbitype]
command = "uvx"
args = ["arbitype"]
.cursor/mcp.json
{
  "mcpServers": {
    "arbitype": {
      "args": [
        "arbitype"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "arbitype": {
      "args": [
        "arbitype"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: TYPESAFE_API_KEY (API key for TypeSafe AI Jev System One.). The author declared them in the registry entry; get the values from the project itself.

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Arbitype — questions

Answers built from our own checks of this server.

Why is there no uptime for Arbitype?
Arbitype runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package arbitype.
How do I connect Arbitype?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls arbitype straight from pypi; nothing to host, nothing to sign up for.
Is Arbitype open source?
Yes — it is published under the MIT licence, written in Python 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.