mcp-rs232

An MCP server that exposes RS232 serial port connectivity

mcp-name: io.github.daedalus/mcp-rs232

Install

pip install mcp-rs232

Related MCP server: embedded-serial-mcp

Usage

from mcp_rs232 import list_ports, open_port, close_port, read_port, write_port

# List available ports
ports = list_ports()
print(ports)

# Open a port
open_port("COM1", baud_rate=9600)

# Write data (hex encoded)
write_port("COM1", "48656c6c6f")  # "Hello"

# Read data (returns hex encoded)
data = read_port("COM1")

# Close the port
close_port("COM1")

CLI

mcp-rs232 --help

API

Resources

• serial://ports - Lists all available serial ports with their details

• serial://port/{port_name} - Get details about a specific port

Tools

• list_ports_tool() - Returns list of available serial ports

• open_port(port, baud_rate, ...) - Opens a serial connection

• close_port(port) - Closes a serial connection

• read_port(port, size, timeout) - Reads data from port (hex encoded)

• write_port(port, data) - Writes hex-encoded data to port

• get_port_config(port) - Returns current port configuration

Development

git clone https://github.com/daedalus/mcp-rs232.git
cd mcp-rs232
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/