Errors by starting xcf server

[hitnova]

Downloaded latest version of xcf: 1.0.3b and trying to use with Claude Desktop client with the following configuration file:

claude_desktop_config.json:
{
"mcpServers": {
"xcf": {
"type": "stdio",
"command": "/Applications/xcf.app/Contents/MacOS/xcf server"
}
}
}

Got the following errors in mcp.log:

2025-05-22T13:53:07.393Z [info] [xcf] Initializing server...
2025-05-22T13:53:07.452Z [error] [xcf] spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT
2025-05-22T13:53:07.452Z [error] [xcf] spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT
2025-05-22T13:53:07.454Z [info] [xcf] Server transport closed
2025-05-22T13:53:07.454Z [info] [xcf] Client transport closed
2025-05-22T13:53:07.454Z [info] [xcf] 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.
2025-05-22T13:53:07.454Z [error] [xcf] Server disconnected. For troubleshooting guidance, please visit our debugging documentation

and the following errors in mcp-server-xcf.log

2025-05-22T13:53:07.392Z [xcf] [info] Initializing server...
2025-05-22T13:53:07.452Z [xcf] [error] spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT {"context":"connection","stack":"Error: spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT\n at ChildProcess._handle.onexit (node:internal/child_process:285:19)\n at onErrorNT (node:internal/child_process:483:16)\n at process.processTicksAndRejections (node:internal/process/task_queues:82:21)"}
2025-05-22T13:53:07.452Z [xcf] [error] spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT {"stack":"Error: spawn /Applications/xcf.app/Contents/MacOS/xcf server ENOENT\n at ChildProcess._handle.onexit (node:internal/child_process:285:19)\n at onErrorNT (node:internal/child_process:483:16)\n at process.processTicksAndRejections (node:internal/process/task_queues:82:21)"}
2025-05-22T13:53:07.454Z [xcf] [info] Server transport closed
2025-05-22T13:53:07.454Z [xcf] [info] Client transport closed
2025-05-22T13:53:07.454Z [xcf] [info] 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.
2025-05-22T13:53:07.454Z [xcf] [error] Server disconnected. For troubleshooting guidance, please visit our debugging documentation {"context":"connection"}

In Terminal the app stars with no errors:

/Applications/xcf.app/Contents/MacOS/xcf server

---

xcf Xcode MCP Server
**** 1.0.2 xfc.ai ****
*** Copyright 2025 ***
XCodeFreeze Automation
***** V IX MMXXV *****

Please help! :)

[macOS26]

Hi @hitnova

I reproduced the problem.

Try this for your json. Claude seems to prefer args over adding then to the command. I will update our docs.

{
    "mcpServers": {
        "xcf": {
            "command": "Applications/xcf.app/Contents/MacOS/xcf",
            "args": ["server"]
        }
    }
}

[hitnova]

Hello @SuperBox64

Thank you for replay, with this configuration it works now as expected!

Thank you!