MCP Server doesn't load with Claude Desktop

[MrRahulR]

While connecting with the CLuade Desktop, the MCP server for the Browserstack doesn't connect and shows the error. I tried with other MCP servers like GIt and Playwright, which work perfectly, but the Browserstack MCP failed to connect.

Cluade Desktop Version - Version 0.9.3
OS - macOS Sequoia 15.5
Node Version - v23.11.0

Here are the logs for reference.

2025-06-16T17:40:26.119Z [browserstack] [info] Initializing server...
2025-06-16T17:40:26.164Z [browserstack] [info] Server started and connected successfully
2025-06-16T17:40:26.166Z [browserstack] [info] Message from client: {"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0}
2025-06-16T17:41:26.240Z [browserstack] [info] Message from client: {"jsonrpc":"2.0","method":"notifications/cancelled","params":{"requestId":0,"reason":"Error: MCP error -32001: Request timed out"}}
2025-06-16T17:41:26.240Z [browserstack] [info] Client transport closed
2025-06-16T17:41:26.240Z [browserstack] [info] Server transport closed
2025-06-16T17:41:26.240Z [browserstack] [info] Client transport closed
2025-06-16T17:41:26.240Z [browserstack] [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.
2025-06-16T17:41:26.240Z [browserstack] [error] Server disconnected. For troubleshooting guidance, please visit our [debugging documentation](https://modelcontextprotocol.io/docs/tools/debugging) {"context":"connection"}
2025-06-16T17:41:26.275Z [browserstack] [info] Server transport closed
2025-06-16T17:41:26.275Z [browserstack] [info] Client transport closed

[pulkitsharma07]

Are you using nvm by any chance to manage node versions ? If yes, try setting the correct version using nvm use <version> and then opening Claude Desktop from your terminal using open /Applications/Claude.app

I am not sure if this will help, but it worked for me. There is something weird with npx + nvm + Claude combination.

[MrRahulR]

Thanks @pulkitsharma07 - unfortunately not on the nvm - using Node only. but let me give a try by uninstalling and reinstalling the LTS version recommended.

[pulkitsharma07]

For debugging, try running npx @browserstack/mcp-server@latest directly in the terminal and see if it works. When it works it will not print anything just keep running.