# I'm getting MCP error with the latest update **URL:** \ **Category:** Bug Reports\ **Created:** [March 31, 2025, 2:48am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733 "2025-03-31T02:48:22Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![naivefun](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/naivefun/32/42345_2.png) [@naivefun](https://forum.cursor.com/u/naivefun)\ **Post date:** [March 31, 2025, 2:48am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/1 "2025-03-31T02:48:22Z")
![image](https://us1.discourse-cdn.com/cursor1/original/3X/d/b/db051e08d925eedd97b2795c3af024527a422db7.png) ![image](https://us1.discourse-cdn.com/cursor1/original/3X/e/e/ee18be1e743b6809b984c9599fc968918c5c4103.png) It works just fine until I updated to the latest version of cursor Using mcp inspector, the mcp server also returns correct result. Could it be a bug? ---
**Author:** ![gitcnd](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/gitcnd/32/25840_2.png) [@gitcnd](https://forum.cursor.com/u/gitcnd)\ **Post date:** [March 31, 2025, 2:50am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/2 "2025-03-31T02:50:01Z")
Me too. ALL mcp tools stopped working about an hour ago. The agent is unable to send any parameters through to the tools, so all calls fail. ![pic_2025-03-31_12.57.25_149](https://us1.discourse-cdn.com/cursor1/original/3X/9/5/95772a96e64b3c11ca26a5e83dc9d7f7b1c5f128.png) ---
**Author:** ![ramtingh](https://avatars.discourse-cdn.com/v4/letter/r/3ec8ea/32.png) [@ramtingh](https://forum.cursor.com/u/ramtingh)\ **Post date:** [March 31, 2025, 2:55am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/3 "2025-03-31T02:55:25Z")
Ran into the same issue - Cursor recognizes MCP servers but can’t actually call a tool ---
**Author:** ![wmxl](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/wmxl/32/15250_2.png) [@wmxl](https://forum.cursor.com/u/wmxl)\ **Post date:** [March 31, 2025, 2:58am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/4 "2025-03-31T02:58:17Z")
Same here, even though I didn’t update the client ---
**Author:** ![verioussmith](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/verioussmith/32/8656_2.png) [@verioussmith](https://forum.cursor.com/u/verioussmith)\ **Post date:** [March 31, 2025, 3:00am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/5 "2025-03-31T03:00:12Z")
You’re not the only one. This is technically what we agreed to when opting in for early versions. ![20250330_190942](https://us1.discourse-cdn.com/cursor1/original/3X/2/4/244e209596ea855ba9099f65e10542f4918be773.jpeg) ---
**Author:** ![gitcnd](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/gitcnd/32/25840_2.png) [@gitcnd](https://forum.cursor.com/u/gitcnd)\ **Post date:** [March 31, 2025, 3:01am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/6 "2025-03-31T03:01:31Z")
ME too - I’m on: Version: 0.48.2 (user setup) VSCode Version: 1.96.2 Commit: 7d6318dfcfbf7c12a87e33c06978f23167a6de30 Date: 2025-03-26T02:54:05.125Z Electron: 34.3.4 Chromium: 132.0.6834.210 Node.js: 20.18.3 V8: 13.2.152.41-electron.0 OS: Windows\_NT x64 10.0.26100 By mad co-incidence, I had the devtools tab open, and I had un-blocked the console.log output, so I was able to see that cursor itself suddenly started showing “mcp parse erorrs” over-and-over. ![pic_2025-03-31_13.04.04_150](https://us1.discourse-cdn.com/cursor1/original/3X/a/0/a02c274a768012d67b17682e00cd2c859bedb69c.png) ---
**Author:** ![utilised-ai](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/utilised-ai/32/35479_2.png) [@utilised-ai](https://forum.cursor.com/u/utilised-ai)\ **Post date:** [March 31, 2025, 3:30am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/7 "2025-03-31T03:30:05Z")
Same here, stopped about an hour ago for me. Using the exact same mcp json file for Visual Studio Code and they all work fine in there. ---
**Author:** ![naivefun](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/naivefun/32/42345_2.png) [@naivefun](https://forum.cursor.com/u/naivefun)\ **Post date:** [March 31, 2025, 3:32am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/8 "2025-03-31T03:32:09Z")
As an MCP author, this scares the ■■■■ out of me since I didn’t even release an update yet, lmao. ---
**Author:** ![amovfx](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/amovfx/32/6557_2.png) [@amovfx](https://forum.cursor.com/u/amovfx)\ **Post date:** [March 31, 2025, 3:37am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/9 "2025-03-31T03:37:28Z")
Yeap same here. Happened on today’s update. No more mcp tools. Very sad. ☹ I’m on early access. ---
**Author:** ![henrygeddes](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/henrygeddes/32/4901_2.png) [@henrygeddes](https://forum.cursor.com/u/henrygeddes)\ **Post date:** [March 31, 2025, 3:45am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/10 "2025-03-31T03:45:48Z")
Happened to me yesterday; turns out it was related to my npx/npm configs and not Cursor. It started “randomly” (I hadn’t changed anything related to MCPs or npx). You will need to completely uninstall and reinstall the MCP packges that use npx. I think I also had to globally install the packages (via npm) but I could be misremembering, try this if a fresh install doesn’t work. I also changed some of the MCP commands to use uvx (instead of npx), though I don’t think this is necessary after doing the above step. If this doesn’t fix the issue please reply to my comment and I’ll look through my terminal history to see if I did anything else to fix it. ---
**Author:** ![GLips](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/glips/32/42625_2.png) [@GLips](https://forum.cursor.com/u/GLips)\ **Post date:** [March 31, 2025, 4:07am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/12 "2025-03-31T04:07:56Z")
MCP author here. Confirming that all my users are seeing this as well. Odd that it seems to have started happening without any client-side update required? ---
**Author:** ![xizot](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/xizot/32/42632_2.png) [@xizot](https://forum.cursor.com/u/xizot)\ **Post date:** [March 31, 2025, 4:13am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/13 "2025-03-31T04:13:08Z")
Same here. ---
**Author:** ![condor](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/condor/32/73148_2.png) [@condor](https://forum.cursor.com/u/condor)\ **Post date:** [March 31, 2025, 4:17am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/14 "2025-03-31T04:17:14Z")
Yeah Cursor team will have to look into this as it is likely update related and a very specific error. Lets give them time to check it out. It has been checked here by MCP authors and users. ---
**Author:** ![gitcnd](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/gitcnd/32/25840_2.png) [@gitcnd](https://forum.cursor.com/u/gitcnd)\ **Post date:** [March 31, 2025, 4:20am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/15 "2025-03-31T04:20:10Z")
Are we all windows users, or does this affect Mac as well? ---
**Author:** ![naivefun](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/naivefun/32/42345_2.png) [@naivefun](https://forum.cursor.com/u/naivefun)\ **Post date:** [March 31, 2025, 4:21am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/16 "2025-03-31T04:21:01Z")
Mac user here. ---
**Author:** ![condor](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/condor/32/73148_2.png) [@condor](https://forum.cursor.com/u/condor)\ **Post date:** [March 31, 2025, 4:21am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/17 "2025-03-31T04:21:05Z")
Yes, me. Some user posted that they have same on earlier versions so it may be cursor tool call processing. ---
**Author:** ![hungtangwei](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/hungtangwei/32/42635_2.png) [@hungtangwei](https://forum.cursor.com/u/hungtangwei)\ **Post date:** [March 31, 2025, 4:22am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/18 "2025-03-31T04:22:48Z")
Same here. ---
**Author:** ![fafarachoso](https://avatars.discourse-cdn.com/v4/letter/f/958977/32.png) [@fafarachoso](https://forum.cursor.com/u/fafarachoso)\ **Post date:** [March 31, 2025, 4:25am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/19 "2025-03-31T04:25:36Z")
Same here! I’m not using the latest update. ![image](https://us1.discourse-cdn.com/cursor1/original/3X/a/7/a78851b7ba34ccf6e9dfbcde02745efea9e79a28.png) ---
**Author:** ![TBrist](https://avatars.discourse-cdn.com/v4/letter/t/ecccb3/32.png) [@TBrist](https://forum.cursor.com/u/TBrist)\ **Post date:** [March 31, 2025, 4:27am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/20 "2025-03-31T04:27:17Z")
Same, not using early access. Cross checked the MCP tool (sequential thinking) if its working on Claude and it does. Hopefully gets fixed soon ---
**Author:** ![shren207](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/shren207/32/39906_2.png) [@shren207](https://forum.cursor.com/u/shren207)\ **Post date:** [March 31, 2025, 4:41am UTC](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733/21 "2025-03-31T04:41:14Z")
Same here. I’m using v0.48.5 [Next page](https://forum.cursor.com/t/im-getting-mcp-error-with-the-latest-update/72733.md?page=2)