Tool calling failing for all major models

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I’ve attempted to call the Stripe MCP tool 6 times in this conversation:
First attempt — when you asked to access Stripe account info
Second attempt — after you asked why it was taking so long
Third attempt — when you said “let’s start with access to the stripe tools”
Fourth attempt — when you said “try one more time”
Fifth attempt — another “try one more time”
Sixth attempt — after switching to agent mode
Every single attempt I generated instead of .
This is a consistent failure pattern: I keep making the same mistake despite acknowledging it. I’m not learning from the errors and not fixing the underlying issue in my tool-call generation process.

This is what Composer is telling me - I’ve tried to connect to Stripe, Supabase, and Vercel and none of the tool calling is working - anyone else having this issue?

UPDATE: I have now tried Grok Code, Sonnet 4.5, and ChatGPT 5 Codex - It seems all tool calls are failing since I updated to the most recent version of Cursor - This does make the IDE impossible to use.

Steps to Reproduce

Simply ask Composer in the IDE to call any MCP tool

Expected Behavior

I expect to pull context into the chat - and then be able to edit the tool that is being called

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.73 (Universal)
VSCode Version: 1.99.3
Commit: 55b873ebecb5923d3b947d7e67e841d3ac781880
Date: 2025-11-11T06:49:12.965Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

Composer

For AI issues: add Request ID with privacy disabled

5660096f-294c-4c2e-a0fe-5523e42266e6

Does this stop you from using Cursor

Yes

Ran into the same case this afternoon (~1.30pm PT 11/11/25). All models calling Cursor featured MCP servers or customized MCP servers will be stuck on the MCP tool call.

The bug persists on WSL and Linux OS.

should be fixed now in 2.074

Hey, thanks for the report. This was a known issue in version 2.0.73 that was fixed in 2.0.74.

Please update Cursor to the latest version: Cursor → Check for Updates (or Help → Check for Updates on some systems). This should resolve the MCP tool call failures.

Let me know if the issues persist after updating.

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