Home 🤖 OTTO SEO 🔄 Fix the Cursor MCP Authorization Loop

🔄 Fix the Cursor MCP Authorization Loop

Last updated on Oct 29, 2026

🔁 What the authorization loop means

The MCP CLI Proxy lets Cursor use Search Atlas through a secure sign-in. A normal connection opens the authorization page once, you approve access, and Cursor returns to work. A loop means that page keeps appearing and the connection never finishes.

Your account and projects stay safe. The proxy is waiting for a completed approval that Cursor is not receiving.

🧭 Why the page keeps returning

The loop usually comes from a sign-in that starts more than once, or from an approval that cannot return to Cursor. Common causes include:

  • Several authorization tabs or browser windows open at the same time
  • An old proxy session still running in the background
  • A browser popup, redirect, or localhost callback that was blocked
  • Saved sign-in data for a different Search Atlas account
  • An MCP entry in Cursor that was added again before the first approval finished

🛠️ Stop the loop and connect once

  1. Close every authorization tab. Quit the browser window that the proxy opened, and leave Cursor open.
  2. Stop the MCP CLI Proxy completely. If it is running in a terminal, end that process, then start it again only once.
  3. In Cursor, open your MCP settings and remove the Search Atlas MCP entry. Do not add it back yet.
  4. Restart Cursor so it drops the unfinished approval.
  5. In the browser you use for sign-in, sign out of Search Atlas. If more than one account is saved, choose the account that owns the project before you continue.
  6. Allow popups and redirects for that browser, and do not block localhost callbacks. Use one normal browser window, not a private window and not a second profile.
  7. Start the MCP CLI Proxy one time. Add the Search Atlas MCP entry in Cursor again and approve the authorization page only once.
  8. Wait on that page until it confirms the connection or closes on its own. Do not refresh it and do not open a second approval.

✅ Confirm the connection is stable

The loop is fixed when the authorization page no longer returns and the Search Atlas MCP server shows as connected in Cursor. Send a simple request that you already use, such as asking for a project summary. A successful response means the approval was saved.

If the page appears one more time immediately after approval, close it without signing in again and check Cursor first. Approving a second time can restart the loop.

🚫 What to avoid while reconnecting

  • Do not click the authorization link repeatedly
  • Do not keep an old proxy terminal running beside a new one
  • Do not sign in with a different Search Atlas account during the same attempt
  • Do not reinstall Cursor before trying the single clean approval above

💬 When to contact support

If a single clean approval still returns you to the same page, tell us what you see: whether the page reloads by itself, whether Cursor shows a connection error, and whether the proxy was started more than once. If you need further assistance, open the chat widget in the bottom-right corner of the platform and type human teammate to be instantly connected with a member of our team.