Cursor can not load MCP stdio servers

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

None of stdio MCP servers are working

Steps to Reproduce

launch cursor and check MCP servers

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.17 (Universal)
VSCode Version: 1.105.1
Commit: 6757269838ae9ac4caaa2be13f396fdfbcf1f9a0
Date: 2025-11-21T08:55:17.983Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 25.0.0

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, thanks for the report. I can see that all your MCP servers are showing errors. To help diagnose this, could you please share:

  • MCP logs: Open the Output panel Cmd+Shift+U, select “MCP Logs” from the dropdown, and share the error messages.
  • Your mcp.json file: Share the configuration (you can redact any API keys or secrets).
  • Specific error: Click “Show Output” on one of the failed servers and share what it says.

A few quick checks as well:

  • Do you have the required executables (npx, node, python, etc.) installed and available in your PATH?
  • Did these servers work previously, or is this a fresh setup?

Note: There are some known MCP subsystem issues that the team is already tracking. Your logs will help determine whether this is related to those or a separate issue.

while i was trying to provide you more output i found out my node installation is broke down causing npx to fail. i restored node and now all good. sorry to bother

This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.