# MCP gmail server: Server disconnected error for guMCP on Claude desktop

**URL:** https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102
**Category:** Get Help
**Tags:** guMCP
**Created:** [July 1, 2025, 2:14am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102 "2025-07-01T02:14:11Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Ashish](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Ashish](https://forum.gumloop.com/u/Ashish)
#### Post date: [July 1, 2025, 2:14am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/1 "2025-07-01T02:14:11Z")

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Hi! So I’ve generated a guMCP API Key, and edited the Claude desktop config json with the instructions in the gmail mcp page but i keep getting this error when I open Claude desktop: “MCP gmail-server: Server disconnected. For troubleshooting guidance, please visit our debugging documentation.”  
It worked for a few hours when I first set it up, but i’ve been getting this error ever since then.  
This is not isolated to just the gmail mcp, but any guMCP i set up.

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### Author: ![Gumloop\_Bot](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.gumloop.com/gumloop_bot/32/504_2.png) [@Gumloop\_Bot](https://forum.gumloop.com/u/Gumloop_Bot)
#### Post date: [July 1, 2025, 2:14am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/2 "2025-07-01T02:14:11Z")

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Hey @Ashish! If you’re reporting an issue with a flow or an error in a run, please include the **run link** and make sure it’s **shareable** so we can take a look.

1. **Find your run link** on the history page. Format: `https://www.gumloop.com/pipeline?run_id={{your_run_id}}&workbook_id={{workbook_id}}`

2. **Make it shareable** by clicking **“Share”** → ‘Anyone with the link can view’ in the top-left corner of the flow screen.  
 ![GIF guide](https://canada1.discourse-cdn.com/flex027/uploads/gumloop/original/1X/92c00c612fd65b861e706dd1b5eec5ec61677835.gif)

3. **Provide details** about the issue—more context helps us troubleshoot faster.

You can find your run history here: [https://www.gumloop.com/history](https://www.gumloop.com/history)

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### Author: ![Wasay-Gumloop](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.gumloop.com/wasay-gumloop/32/69_2.png) [@Wasay-Gumloop](https://forum.gumloop.com/u/Wasay-Gumloop)
#### Post date: [July 1, 2025, 8:03am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/3 "2025-07-01T08:03:47Z")

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Hey @Ashish – Would you be able to share a screenshot if possible? I’ll also loop in my colleague here that leads the MCP development.

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### Author: ![Ashish](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Ashish](https://forum.gumloop.com/u/Ashish)
#### Post date: [July 1, 2025, 3:55pm UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/4 "2025-07-01T15:55:41Z")

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Hi @Wasay-Gumloop - I managed to solve the issue. It was a broken cache that required purging.  
I ran:  
npm cache clean --force  
npx clear-npx-cache

and when i re-loaded Claude desktop the MCP worked fine, so the broken npx temp folder was the culprit.

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### Author: ![Wasay-Gumloop](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.gumloop.com/wasay-gumloop/32/69_2.png) [@Wasay-Gumloop](https://forum.gumloop.com/u/Wasay-Gumloop)
#### Post date: [July 3, 2025, 4:51am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/5 "2025-07-03T04:51:40Z")

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Got it, thank you for the update! 🙂

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### Author: ![system](https://canada1.discourse-cdn.com/flex027/uploads/gumloop/original/1X/d02ff8efcde6ac5d3ac8aa0376137d5f804da549.png) [@system](https://forum.gumloop.com/u/system)
#### Post date: [July 8, 2025, 4:52am UTC](https://forum.gumloop.com/t/mcp-gmail-server-server-disconnected-error-for-gumcp-on-claude-desktop/3102/6 "2025-07-08T04:52:15Z")

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