HC3 MCP Server

[jgab 2,647]

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So, I have tinkered a bit more with an MCP server for the HC3. Now that VSCode has pretty good support for mcp servers it starts to be interesting.
My current attempt:

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I typically run it with Claude Sonnet 4.

The mcp gives the agent access to the HC3 and it can do most tasks, like:

User:

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Agent:

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Have a look at the link for provided tools/features.
 

Edited August 19, 2025 by jgab

[jayrock 10]

Awesome!

[cag014 731]

Great feature, two questions

1. is it works with HC2?

2. Is it works with multiple HC3 hubs? if yes, how?

Edited November 9, 2025 by cag014

[jgab 2,647]

29 minutes ago, cag014 said:

Great feature, two questions

1. is it works with HC2?

2. Is it works with multiple HC3 hubs? if yes, how?

1. Not really, QAs are very different, as are scenes…

2. No, it will use the .env creds to find the HC3. Need to swap .env and restart mcp I guess.

[Christb 33]

Just install HC3 MCP in vscode - OK

Updated settings.json with the right information ("FIBARO_HOST","FIBARO_USERNAME","FIBARO_PASSWORD","FIBARO_PORT") and the path to:

 "/Users/ASUS/.vscode\extensions/gsonsoft-development.hc3-mcp-server-1.0.4/out/mcp/fibaro-mcp-server.js"

Then restart Vscode, and test connection to HC3 and get:

✅ Successfully connected to Fibaro HC3! Host: 192.168.1.107:80 Version: Unknown Serial: HC3-00006080 Config source: ~/.env file

 

But I have an error message when I start a chat: The command "node" needed to run Fibaro HC3 Smart Home was not found.

In the OUTPUT window I have:

2025-11-12 13:55:34.396 [info] Starting server Fibaro HC3 Smart Home

2025-11-12 13:55:34.397 [info] Connection state: Starting

2025-11-12 13:55:34.398 [info] Starting server from LocalProcess extension host

2025-11-12 13:55:34.435 [info] Connection state: Starting

2025-11-12 13:55:34.438 [info] Connection state: Error spawn node ENOENT

 

What I need to look at to fix this?

[jgab 2,647]

You have https only to HC3?

[Christb 33]

1 hour ago, jgab said:

You have https only to HC3?

No, http & https are allowed

I can connect with http://192.168.1.107 or https://192.168.1.107 or http://hc3-00006080 or https://hc3-00006080 

[jgab 2,647]

Ok, I read your error message again - it seems like you haven't node.js installed in your system. 
The mcp is written in javascript and requires node.js to be installed.
Therefore the 
 The command "node" needed to run Fibaro HC3 Smart Home was not found.
 

Edited November 12, 2025 by jgab

[Christb 33]

On 11/12/2025 at 6:04 PM, jgab said:

requires node.js to be installed.

Done and the node error disapeared 🙂

I am still not able to use it as when in a chat I ask "List my HC3 devices" (or any other request) I am always gettng an answer that Copilot cannot access to my HC3. Same if HC3 MCP server.js is declare in context field.

Is it because Copilot didn't use HC3 MCP?  

Do I need to have a running lua file before asking this quetsion?

[jayrock 10]

I have the MCP server up and running. It's fun, I can now change the color of my Hues' with natural language

 

node.js was missing on my system, too, suggest to add it to the install instructions.

 

11 hours ago, Christb said:

I am always gettng an answer that Copilot cannot access to my HC3. Same if HC3 MCP server.js is declare in context field.

 

Try Command Palette -> HC3 MCP: Test Fibaro HC3 Connection

[Christb 33]

1 hour ago, jayrock said:

Try Command Palette -> HC3 MCP: Test Fibaro HC3 Connection

Ys I did and getting this result:

✅ Successfully connected to Fibaro HC3!
Host: 192.168.1.107:80
Version: Unknown
Serial: HC3-00006080
Config source: ~/.env file

 

[jayrock 10]

That's odd. What's the exact message? Did you ask Copilot why HC3 cannot be accesses?

Edited November 16, 2025 by jayrock

[James R 5]

I have set up the MCP server with login information and get a success message when I run the Test Fibaro HC3 Connection

 

When I enter a simple request in the chat such as "show HC3 system information" or "show HC3 devices" I see an error of the form

 

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The MCP server extension is enabled.

 

Have I missed something in the configuration?

[James R 5]

For anyone seeing a similar error the problem was I was using an older release of node for another project. I updated to latest and it works.