server disconnected

[Qmeasure]

2026-01-12T05:37:09.150Z [FRED MCP Server] [info] Server started and connected successfully { metadata: undefined }
Failed to spawn process: No such file or directory
2026-01-12T05:37:09.152Z [FRED MCP Server] [info] Server transport closed { metadata: undefined }
2026-01-12T05:37:09.152Z [FRED MCP Server] [info] Client transport closed { metadata: undefined }
2026-01-12T05:37:09.152Z [FRED MCP Server] [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. { metadata: undefined }
2026-01-12T05:37:09.152Z [FRED MCP Server] [error] Server disconnected. For troubleshooting guidance, please visit our debugging documentation { metadata: { context: 'connection', stack: undefined } }

I'm using claude desktop

[stefanoamorelli]

@Qmeasure thanks for reporting this.

The "Failed to spawn process: No such file or directory" error means Claude Desktop can't find either the Node.js executable or the script path.

The most common cause is that /usr/bin/node (shown in the README example) doesn't exist on your system. You can find the correct path by running which node in your terminal.

Alternatively, you could try to use npx instead:

  {
    "mcpServers": {
      "FRED MCP Server": {
        "command": "npx",
        "args": ["-y", "fred-mcp-server"],
        "env": {
          "FRED_API_KEY": "your_api_key"
        }
      }
    }
  }

If that doesn't work, could you share your OS and config file (with API key redacted)? Happy to help debug further.