### Preflight Checklist - [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet - [x] This is a single bug report (please file separate reports for different bugs) - [x] I am using the latest version of Claude Code ### What's Wrong? Previously, I was able to access all my Claude.ai MCPs in Claude code. Recently, I notice that it is missing. I suspect it is because the flag ("tengu_cla

[BUG] Claude.ai MCPs not showing up on Claude code

Status Closed — not planned

Reported on v2.1.25

Maintainer reply None cached

Workaround ✓ Mentioned in thread ↓

Activity 11 comments · opened Jan 30, 2026 · closed Apr 26, 2026

Preflight Checklist

[x] I have searched existing issues and this hasn't been reported yet
[x] This is a single bug report (please file separate reports for different bugs)
[x] I am using the latest version of Claude Code

What's Wrong?

Previously, I was able to access all my Claude.ai MCPs in Claude code. Recently, I notice that it is missing.
I suspect it is because the flag ("tengu_claudeai_mcp_connectors") keeps being set to false on start up of Claude code. Not sure why this is happening

What Should Happen?

It should always load the Claude.ai MCPs in my Claude code

Error Messages/Logs

Steps to Reproduce

Set "tengu_claudeai_mcp_connectors": false as true in .claude.json in user scope
restart claude code
It will be reset back to false and the MCPs are missing

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.25

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_

View original on GitHub ↗

11 Comments

github-actions[bot] · 7 months ago

Found 3 possible duplicate issues:

This issue will be automatically closed as a duplicate in 3 days.

If your issue is a duplicate, please close it and 👍 the existing issue instead
To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

Abhi-Prad · 7 months ago

👎 Not similar to 2 and 3 at all. It looks similar to 1 but the OS and how issue happens seems different.

lookashc · 7 months ago

It would be great to know when this would be brought back, as this brings a critical missing piece to my daily workflow (Krisp MCP via claude.ai).

dropcontrol · 6 months ago

Additional investigation findings

We investigated this issue across two macOS machines with the same Claude Max account, same organization, and same Claude Code version (2.1.37).

Environment

| | Machine A (working) | Machine B (not working) |
|---|---|---|
| tengu_claudeai_mcp_connectors | true | false (reset on every restart) |
| Claude Code version | 2.1.37 | 2.1.37 |
| Account/email | Same | Same |
| Organization UUID | Same | Same |

What we ruled out

Environment variables — As suggested in #24062, we checked all five env vars that disable checkGateCached():

DISABLE_TELEMETRY — not set on either machine
CLAUDE_CODE_USE_BEDROCK — not set
CLAUDE_CODE_USE_VERTEX — not set
CLAUDE_CODE_USE_FOUNDRY — not set
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC — not set
Shell profiles (.zshrc, .bashrc, .zprofile, .bash_profile, .zshenv) — no matches
launchctl getenv — not set

anonymousId — Different between machines (claudecode.v1.{UUID}). Copying the working machine's anonymousId to the non-working machine did not change the flag evaluation result.

oauthAccount fields — The non-working machine was missing organizationRole, workspaceRole, and organizationName. Manually adding them did not help.

Manually setting the flag — Setting tengu_claudeai_mcp_connectors: true in ~/.claude.json works within the running session, but gets overwritten to false on the next startup by server sync.

Re-authentication — claude logout → claude login, reconnecting Slack OAuth from claude.ai web — none helped.

Conclusion

The issue appears to be purely server-side feature flag evaluation (GrowthBook). Same account, same org, same version, same env — but different anonymousId values get different gate results. No client-side workaround found.

dropcontrol · 6 months ago

Workaround: SessionStart hook to force the flag on every launch

Since the flag gets overwritten on every restart by server-side sync, I set up a Claude Code SessionStart hook that forces tengu_claudeai_mcp_connectors back to true before the session begins.

~/.claude/scripts/fix-mcp-gate.sh

#!/bin/bash
set -euo pipefail
CLAUDE_JSON="$HOME/.claude.json"
if [ -f "$CLAUDE_JSON" ] && command -v jq &>/dev/null; then
    tmp=$(mktemp)
    jq '.cachedGrowthBookFeatures.tengu_claudeai_mcp_connectors = true' \
        "$CLAUDE_JSON" > "$tmp" && mv "$tmp" "$CLAUDE_JSON"
fi
exit 0

~/.claude/settings.json (add to hooks.SessionStart):

{
  "matcher": "",
  "hooks": [{ "type": "command", "command": "bash ~/.claude/scripts/fix-mcp-gate.sh" }]
}

Requires jq (brew install jq). The hook runs before the session starts, so MCP connectors are available immediately.

Not a real fix, but it keeps things working until the server-side flag evaluation is resolved.

shawnz · 6 months ago

the SessionStart hook ~~didn't work for me~~. But this script did, after modifying it to target the claudeai_mcp_connectors feature flag: https://gist.github.com/gastonmorixe/9c596b6de1095b6bd3b746ca3a1fd3d7

EDIT: Actually, the SessionStart hook DID work after a reboot! Thanks!

machineghost · 6 months ago

Please, don't make me trust an insecure third-party MCP server with my email!

Please, either fix this, or provide an authorized/"officially from Anthropic" MCP server for GMail integration.

danaimone · 6 months ago

This is still an active issue. Above fix did nothing for me. Relevant logs:

``2026-03-03T18:34:27.545Z [DEBUG] [claudeai-mcp] Fetch failed 2026-03-03T18:34:27.552Z [ERROR] AxiosError: [url=https://platform.claude.com/v1/oauth/token,status=400] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39) 2026-03-03T18:34:27.124Z [DEBUG] [claudeai-mcp] Checking gate (cached)... 2026-03-03T18:34:27.124Z [DEBUG] [claudeai-mcp] Gate returned: true 2026-03-03T18:34:27.125Z [DEBUG] [claudeai-mcp] Fetching from https://api.anthropic.com/v1/mcp_servers?limit=1000 2026-03-03T18:34:27.125Z [DEBUG] Found 1 enabled plugins 2026-03-03T18:34:27.126Z [DEBUG] All plugins already exist, skipping migration 2026-03-03T18:34:27.126Z [DEBUG] Found 3 installed plugins 2026-03-03T18:34:27.126Z [DEBUG] Found 0 missing plugins (not installed): 2026-03-03T18:34:27.126Z [DEBUG] Setting installation status: 0 marketplaces, 0 installable plugins, 0 uninstallable plugins 2026-03-03T18:34:27.127Z [ERROR] AxiosError: [url=https://api.anthropic.com/api/oauth/claude_cli/client_data,status=429,body=Rate limited. Please try again later.] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39) 2026-03-03T18:34:27.127Z [ERROR] AxiosError: [url=https://api.anthropic.com/api/oauth/claude_cli/client_data,status=429,body=Rate limited. Please try again later.] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39) 2026-03-03T18:34:27.128Z [ERROR] AxiosError: [url=https://api.anthropic.com/api/oauth/claude_cli/client_data,status=429,body=Rate limited. Please try again later.] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39) 2026-03-03T18:34:27.128Z [ERROR] AxiosError: [url=https://api.anthropic.com/api/oauth/claude_cli/client_data,status=429,body=Rate limited. Please try again later.] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39) 2026-03-03T18:34:27.128Z [ERROR] AxiosError: [url=https://api.anthropic.com/api/oauth/claude_cli/client_data,status=429,body=Rate limited. Please try again later.] Error at YM (/$bunfs/root/claude:92:1144) at <anonymous> (/$bunfs/root/claude:93:10067) at emit (node:events:92:22) at endReadableNT (internal:streams/readable:861:50) at processTicksAndRejections (native:7:39) at request (/$bunfs/root/claude:95:2149) at processTicksAndRejections (native:7:39)``

diegorv · 5 months ago

Please fix this bug

github-actions[bot] · 4 months ago

Closing for now — inactive for too long. Please open a new issue if this is still relevant.

github-actions[bot] · 3 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.