Claude desktop getting stuck when trying to use the MCP locally

[supmanyu]

I was able to get the development build setup locally, this is my claude_desktop_config.json:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/Users/<username>/Desktop",
        "/Users/<username>/Downloads",
        "/Users/<username>/github/linear-mcp-server"
      ]
    },
    "linear": {
      "command": "node",
      "args": [
        "/Users/<username>/github/linear-mcp-server/build/index.js"
      ],
      "env": {
        "LINEAR_API_KEY": "<redacted-api-key>"
      }
    }
  }
}

However, the chat does not give an output for any prompts, it gets stuck at this screen:

Until eventually i get this error:

Also, the console.log statements inside the source code prevent the MCP server connection to be successful, I had to remove them to get it working, otherwise i was getting an error when starting up claude:
[error] Error in MCP connection to server linear: SyntaxError: Unexpected token 'L', "[Linear API"... is not valid JSON

Any help on this would be greatly appreciated.

[puma10]

same issue here

[jgadbois]

Every request times out for me as well with the -32001 whether building locally or using npx -y package.

[ronnyli]

Same here! I'm using a personal API key instead of Oauth though. Is that the issue?

[gabemcguire]

Every request times out for me as well with the -32001 whether building locally or using npx -y package.

I am having the same issue

[jbohnslav]

Same here

[xpluscal]

Same

[vinayak-mehta]

Same

[vinayak-mehta]

it wasn't running for me so i created a new linear mcp in python based on all the tools and resources from this mcp: https://github.com/vinayak-mehta/linear-mcp i can verify that it works!

[gltanaka]

I found that this repo works: https://github.com/cosmix/linear-mcp