Does not work on Mac

[androidyouth]

Changed all the paths etc. but I get "ModuleNotFoundError: No module named 'houdinimcp'" when trying to start the tool in Houdini.
Maybe there are different settings for Mac? The Blender one works identically for both
Thanks!
Stef

[Ibrahimshoer93]

We only tested on Windows, I will try to make it work on Mac and let you know.

[androidyouth]

Thank you - very excited to try it out

[vladunev-tomtom]

I ran it on mac. @androidyouth, please check what I had to be careful about to make it work here

[androidyouth]

I got the server to start/stop etc. all correctly but it disconnects right away when trying to load fastMCP module. I had to force the install of FastMCP with pip. But still no luck. Thanks!

2025-04-17T22:43:50.952Z [info] [houdini] Server started and connected successfully
2025-04-17T22:43:51.075Z [info] [blender] Message from client: {"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0}
2025-04-17T22:43:51.078Z [info] [houdini] Message from client: {"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0}
2025-04-17T22:43:51.432Z [info] [houdini] Server transport closed
2025-04-17T22:43:51.432Z [info] [houdini] Client transport closed
2025-04-17T22:43:51.432Z [info] [houdini] Server transport closed unexpectedly, this is likely due to the process exiting early. If you are developing this MCP server you can add output to stderr (i.e. console.error('...') in JavaScript, print('...', file=sys.stderr) in python) and it will appear in this log.
2025-04-17T22:43:51.432Z [error] [houdini] Server disconnected. For troubleshooting guidance, please visit our debugging documentation
2025-04-17T22:43:51.433Z [info] [houdini] Client transport closed

In the houdini mcp log I get :

Traceback (most recent call last):
File "/Users/XXX/Library/Preferences/houdini/20.5/scripts/python/houdinimcp/houdini_mcp_server.py", line 29, in
from mcp.server.fastmcp import FastMCP, Context
ModuleNotFoundError: No module named 'mcp'

Everything works perfect in Blender and other tools. Thank you for any pointer!