Why is MCP listed as available in the MCP list, but when I try to execute MCP in the agent, it shows that there are no executable MCP services?

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Why is MCP listed as available in the MCP list, but when I try to execute MCP in the agent, it shows that there are no executable MCP services?

Steps to Reproduce

Why is MCP listed as available in the MCP list, but when I try to execute MCP in the agent, it shows that there are no executable MCP services?

Screenshots / Screen Recordings

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.41 (user setup)
VSCode Version: 1.105.1
Commit: 2ca326e0d1ce10956aea33d54c0e2d8c13c58a30
Date: 2026-01-16T19:14:00.150Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.19045

For AI issues: which model did you use?

sonnet 4.5

Does this stop you from using Cursor

No - Cursor works, but with this issue

Hey, thanks for the report. This is a known issue in version 2.3.41. A regression affected all MCP users. Servers connect and register tools successfully, but the agent can’t discover them.

The team is already working on a fix. Similar threads with the same issue: