Serial MCP Server
A Model Context Protocol (MCP) server for serial port communication, enabling LLMs to interact with hardware devices via serial connections.
Features
- List available serial ports
- Open/close serial port connections
- Read and write data to serial ports
- Control serial signals (DTR, RTS, CTS, DSR, DCD)
- Support for custom baud rates, data bits, stop bits, and parity
- JSON and Markdown output formats
Installation
# Install from PyPI (when published)
pip install serial-mcp-new
Usage
Running the Server
# Run with stdio transport (default, for local use)
serial-mcp
Config in Claude Code
"mcpServers": {
"ssh-mcp": {
"command": "C:\\Users\\DELL\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python311\\Scripts\\serial-mcp.exe",
"args": [],
"env": {}
}
},
Available Tools
| Tool | Description |
|---|---|
serial_list_ports | List all available serial ports |
serial_open | Open a serial port connection |
serial_close | Close a serial port connection |
serial_write | Write data to a serial port |
serial_read | Read data from a serial port |
serial_set_signals | Set control signal states |
serial_get_signals | Read current signal states |
serial_list_connections | List all active connections |
Example Workflow
-
List available ports:
serial_list_ports() -
Open a connection:
serial_open(port="COM3", baud_rate=115200) -
Write data:
serial_write(connection_id="conn_1", data="Hello, device!") -
Read response:
serial_read(connection_id="conn_1", timeout=2.0) -
Close when done:
serial_close(connection_id="conn_1")
Dependencies
- Python 3.10+
- mcp >= 1.6.1
- pyserial >= 3.5
- pydantic >= 2.0.0
License
MIT