What is the key difference between Stack Chan and Modbus MCP?

Stack Chan belongs to the Embedded System category with local stdio execution, while Modbus MCP belongs to the Embedded System category with local stdio execution.

How do I install Stack Chan or Modbus MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Stack Chan and Modbus MCP free or paid?

Stack Chan operates under a Free / Open Source model (No auth required). Modbus MCP operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Stack Chan lists 6 tools with 3 views and 1,723 GitHub stars. Modbus MCP lists 5 tools with 3 views and 25 GitHub stars.

Can I use both Stack Chan and Modbus MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Stack Chan vs Modbus MCP

In-depth architectural comparison of the Stack Chan and Modbus MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Stack Chan

Embedded System · Local stdio

Quality: 51/100 (Good) | Auth: No auth required

Modbus MCP

Embedded System · Local stdio

Quality: 32/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Stack Chan if you need specialized Embedded System tools running via a local process. Choose Modbus MCP if your workspace requires Embedded System integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Stack Chan when:

You need dedicated capabilities in the Embedded System domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: JavaScript-driven M5Stack robot firmware, MCP functionality for AI-controlled interactions and emotions, Browser-based firmware installer and device tools.

Explore Stack Chan Details

Choose Modbus MCP when:

You need dedicated capabilities in the Embedded System domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: MODBUS_TYPE, MODBUS_HOST, MODBUS_PORT, MODBUS_DEFAULT_SLAVE_ID, MODBUS_SERIAL_PORT, MODBUS_BAUDRATE, MODBUS_PARITY, MODBUS_STOPBITS.

Feature & Specification Comparison

Specification	Stack Chan stack-chan Embedded System	Modbus MCP kukapay Embedded System
Summary	A JavaScript-driven M5Stack-embedded super-kawaii robot with MCP server functionality for AI-controlled interactions and emotions.	An MCP server that standardizes and contextualizes industrial Modbus data.
Category & Scope	Embedded System

Tools & Capabilities Breakdown

Stack Chan Tools (6)

JavaScript-driven M5Stack robot firmware

MCP functionality for AI-controlled interactions and emotions

Browser-based firmware installer and device tools

MOD gallery, Blockly editor, and simulator

Support for selected M5Stack devices

Open hardware schematics and case resources

Modbus MCP Tools (5)

Reads and writes holding registers

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Stack Chan Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "stack-chan-stack-chan": {
      "command": "npx",
      "args": [
        "-y",
        "stack-chan-stack-chan"
      ]
    }
  }
}

Modbus MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "kukapay-modbus-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "kukapay-modbus-mcp"
      ],
      "env": {
        "MODBUS_TYPE": "YOUR_MODBUS_TYPE_HERE",
        "MODBUS_HOST": "YOUR_MODBUS_HOST_HERE",
        "MODBUS_PORT": "YOUR_MODBUS_PORT_HERE",
        "MODBUS_DEFAULT_SLAVE_ID": "YOUR_MODBUS_DEFAULT_SLAVE_ID_HERE",
        "MODBUS_SERIAL_PORT": "YOUR_MODBUS_SERIAL_PORT_HERE",
        "MODBUS_BAUDRATE": "YOUR_MODBUS_BAUDRATE_HERE",
        "MODBUS_PARITY": "YOUR_MODBUS_PARITY_HERE",
        "MODBUS_STOPBITS": "YOUR_MODBUS_STOPBITS_HERE"
      }
    }
  }
}

Frequently Asked Questions

Stack Chan is categorized under Embedded System and uses a local stdio subprocess. In contrast, Modbus MCP belongs to Embedded System using local stdio subprocess. Select Stack Chan when you need capabilities focused on embedded system and Modbus MCP when you require tools for embedded system.

More alternatives to Stack Chan More alternatives to Modbus MCP Embedded System category hub Canonical compare URL