Enables AI assistants to interact with Cisco routers and switches over serial console connections, handling prompt detection and pagination.
SaferSkills independently audited rs232-mcp (MCP Server) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
MCP server for RS232 serial communication with Cisco network equipment.
Lets AI assistants interact with Cisco routers and switches over serial console connections. Handles prompt detection, -- More -- pagination, and connection lifecycle management.
Supported platforms: macOS, Linux, and Windows.
codex mcp add rs232 -- npx github:xnetcat/rs232-mcpclaude mcp add rs232 -- npx github:xnetcat/rs232-mcpTo add it to a specific project instead of globally:
claude mcp add --scope project rs232 -- npx github:xnetcat/rs232-mcpFor any stdio MCP client, configure the server command like this:
{
"mcpServers": {
"rs232": {
"command": "npx",
"args": ["github:xnetcat/rs232-mcp"]
}
}
}If your Windows client does not resolve npm shims correctly, use npx.cmd as the command instead of npx.
| Tool | Description |
|---|---|
list_ports | List available serial ports on the system |
open_port | Open a serial connection (path, baudRate, dataBits, stopBits, parity) |
close_port | Close an open serial connection |
send_command | Send a command and wait for Cisco prompt. Handles -- More -- pagination automatically |
write_raw | Write raw string data to a port (no prompt waiting) |
read_buffer | Read buffered data from a port (non-blocking) |
get_connections | List all open connections and their settings |
Once configured, your AI assistant can:
> List serial ports
> Open /dev/tty.usbserial-110 at 9600 baud
> Open COM3 at 9600 baud
> Send "show version"
> Send "show running-config"
> Close the portThe send_command tool automatically:
Router#, Switch>, Router(config)#, etc.)-- More -- prompts| Parameter | Default |
|---|---|
| Baud rate | 9600 |
| Data bits | 8 |
| Stop bits | 1 |
| Parity | none |
COM3, COM4, COM10, and similar names.list_ports returns the identifier to use with open_port, so you usually do not need any path conversion.serialport package directly, so Windows port handling follows the native COMx behavior provided by that library.git clone https://github.com/xnetcat/rs232-mcp.git
cd rs232-mcp
npm install
npm run build
npm testMIT
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.