MCP FIGMA 400 HTTP 400 Bad Request: {"error":"invalid_redirect_uri"}
Open 💬 2 comments Opened May 21, 2026 by gabrielmassaia
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex CLI is running?
codex-cli 0.133.0
What subscription do you have?
cannot connect oauth in figma mcp
Which model were you using?
all models
What platform is your computer?
windows
What terminal emulator and version are you using (if applicable)?
powershell
Codex doctor report
codex mcp login figma
Error: Registration failed: Dynamic registration failed: Registration failed: HTTP 400 Bad Request: {"error":"invalid_redirect_uri"}What issue are you seeing?
codex mcp login figma
Error: Registration failed: Dynamic registration failed: Registration failed: HTTP 400 Bad Request: {"error":"invalid_redirect_uri"}
What steps can reproduce the bug?
codex mcp login figma
What is the expected behavior?
_No response_
Additional information
_No response_
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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I can reproduce this on Windows as well.
Environment:
npx -y @openai/codex --version=>codex-cli 0.135.0Repro:
Observed error:
Notes:
This is reproducible with the latest npx CLI, so it does not appear to be limited to an old local install.
I also saw the Windows desktop OAuth callback issue separately (Unable to find Electron app at C:\Program...), but this CLI error happens earlier at the OAuth registration step and looks like a server-side redirect URI allowlist/config mismatch rather than a local protocol-handler problem.
Because the same failure occurs with the latest npx CLI, this may affect current Windows CLI users trying to authenticate Figma MCP from a clean setup.