Where does the bug appear (feature/product)?
Cloud Agent (GitHub, Slack, Web, Linear)
Describe the Bug
I’m trying to use Figma MCP in a project with cloud agents so the agent pull designs and implement them. But auth just doesn’t work. If I hit “Authenticate” I get a toast saying “Authentication URL unavailable for this cloud MCP server”. If I try to log in via Customize → MCPs → Figma, the Cloud row shows “Error 404: Invalid OAuth error message”, no matter how much I click the retry button, it simply doesn’t work, and there’s no way to re-authenticate.
Steps to Reproduce
1 - Turn on Figma MCP in Cursor
2 - Start a Project with a Cloud Agent
3 - Ask it to implement something from a Figma link
4 - When it needs Figma access, click Authenticate or Authorize
Expected Behavior
Click Authorize → browser opens → I log into Figma → agent can read my file.
Screenshots / Screen Recordings
Operating System
MacOS
Version Information
Version: 3.21.9
VS Code Extension API: 1.128.0
Commit: 9998796a6096ce83d83a9332bfe7473b985db750
Date: 2026-09-17T02:16:48.732Z
Layout: Agent Window
Build Type: Stable
Release Track: Default
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Darwin arm64 25.5.0
Does this stop you from using Cursor
Sometimes - I can sometimes use Cursor