How do I install Serial?

Serial is a local plugin. Install it using PyPI package: serial-mcp-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Serial need?

Serial requires the following credentials or environment variables: SERIAL_MCP_MAX_CONNECTIONS, SERIAL_MCP_PLUGINS, SERIAL_MCP_MIRROR, SERIAL_MCP_MIRROR_LINK, SERIAL_MCP_TOOL_SEPARATOR. You can find setup instructions on the server detail page.

What AI apps work with Serial?

Serial uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Serial

by Es617

Developer ToolsUse Caution4.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Let AI agents interact with serial devices — list ports, connect, send, and read.

About

Let AI agents interact with serial devices — list ports, connect, send, and read.

What You'll Need

Set these up before or after installing:

Maximum simultaneous open serial connections (default 10)Optional

Environment variable: SERIAL_MCP_MAX_CONNECTIONS

Plugin policy: 'all' or comma-separated plugin names. Unset = disabled.Optional

Environment variable: SERIAL_MCP_PLUGINS

PTY mirror mode: 'off' (default), 'ro' (read-only), or 'rw' (read-write). macOS/Linux only.Optional

Environment variable: SERIAL_MCP_MIRROR

Base path for PTY symlinks (default /tmp/serial-mcp when mirror is enabled). Connections get numbered: /tmp/serial-mcp0, /tmp/serial-mcp1, etc.Optional

Environment variable: SERIAL_MCP_MIRROR_LINK

Tool name separator character (default '.'). Set to '_' for clients that reject dots (e.g. Cursor).Optional

Environment variable: SERIAL_MCP_TOOL_SEPARATOR

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-es617-serial-mcp-server": {
      "env": {
        "SERIAL_MCP_MIRROR": "your-serial-mcp-mirror-here",
        "SERIAL_MCP_PLUGINS": "your-serial-mcp-plugins-here",
        "SERIAL_MCP_MIRROR_LINK": "your-serial-mcp-mirror-link-here",
        "SERIAL_MCP_TOOL_SEPARATOR": "your-serial-mcp-tool-separator-here",
        "SERIAL_MCP_MAX_CONNECTIONS": "your-serial-mcp-max-connections-here"
      },
      "args": [
        "serial-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

Security Report

4.2

Use Caution4.2High Risk

Serial MCP server for hardware communication with proper authentication requirements and reasonable permissions for its purpose. Some security concerns exist around plugin execution of arbitrary code and potential permission escalation, but overall architecture is sound for developer tooling. Code quality is generally good with appropriate error handling. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

Scanned 4 files · 9 findings

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

system_info

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

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Serial

About

What You'll Need

How to Install

Security Report

Permissions Required

Findings (9)

Reviews

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