Product area: Grok Bot (iOS) — official X marketplace plugin / MCP connector (plugin id 49086599). The dropdown has no Grok Bot option, so I picked Cursor for iOS.
I cannot connect the official X plugin in Grok Bot. Starting auth opens x.com in the in-app browser and immediately shows X’s error page (Hebrew UI):
משהו השתבש
לא הצלחת לתת גישה ליישום. חזור אחורה ונסה שוב להיכנס.
English: “Something went wrong. You failed to give access to the application. Go back and try to log in again.”
There is a Back button and a support-center link about third-party app access. Auth never completes.
Connector status after failure: user-X is error / needsAuth, tools=0, detail either “Failed to load MCP server” or “Authentication required”. Plugin id 49086599.
This is a different failure from the Vercel Grok Bot bug (Vercel says “redirect URL is invalid”). Here X itself rejects the authorize/grant step.
Steps to Reproduce
In Grok Bot iOS, install / open the official X plugin (49086599)
X shows “Something went wrong / You failed to give access to the application”
Auth never completes. Connector stays error/needsAuth, tools=0
Expected Behavior
OAuth should complete and the X connector should become connected with tools available in Grok Bot, same as other official plugins (Slack, GitHub, Figma, etc.).
Hey Colin — I updated Grok Bot iOS to 1.2 and reinstalled the official X plugin. It still shows Error after the reinstall (connector user-X, Failed to load MCP server, tools=0). Screenshot attached.
Hey Colin — here’s a fresh screenshot (the last one got warped on upload). After Grok Bot iOS 1.2 and reinstalling the official X plugin, it still shows Error: Failed to load MCP server on the default account. Connector stays Error / tools=0.
Official X plugin (49086599) and official Vercel plugin (649) both fail OAuth for me in Grok Bot and in Cursor. After connect, both stay needsAuth / Error, tools=0. X is authentication_required.
Hey Colin — already did that several times (open the X plugin, disconnect / sign out of the connected account, then sign in again fresh). Tried it again just now on today’s latest Grok Bot version. Still the same Error: Failed to load MCP server on the default account. Connector stays Error / tools=0.
Hey @Colin — checking back on this. It’s been a few days, and I still can’t get X tool calls to work.
Both Local and Cloud now show Connected, but calls return user-not-enrolled, even though X’s Console shows my account is active, enrolled, and has credits.
Could you escalate this to the MCP team and let me know who’s looking into it? If X needs to fix something on their side, could you help get it to the right person? Happy to share the diagnostic details privately. Thanks!
Wanted to check in to see if you’re still facing an issue with the X Plugin! We have more reports of users being able to successfully authenticate, but also know that isn’t everyone’s experience. An uninstall/reinstall of the plugin tends to be what kicks it back to shape, at least for a little while.
