Use Metricool’s production MCP endpoint https://ai.metricool.com/mcp, match your AI client to the correct connection method, then work through the checks below if the server does not connect.
Confirm these items before you dig into client-specific fixes:
Endpoint: use the production URL exactly: https://ai.metricool.com/mcp.
Metricool account: you have a Metricool account and can sign in.
Client method: your tool uses the method listed for it below (URL/OAuth, header token, CLI, or mcp-remote).
Authentication: complete OAuth sign-in and grant access, or configure header auth with the Metricool API key when the client requires it.
Client prerequisites: Claude Code needs a Pro or Max subscription; Cursor needs the Cursor Desktop app; Claude Free can use only one custom connector at a time. Full list: MCP limits and plan requirements.
Success signal: the client shows Metricool as connected, authenticated, or ready to use (wording varies by tool).
Choose the right connection method
Use the method that matches your client. Using the wrong method is a common reason the MCP server never finishes connecting.
Connection method
How you authenticate
Supported clients
URL-based (HTTP/OAuth)
Paste the MCP URL, then sign in to Metricool and grant access
Add the MCP over HTTP/CLI, then authenticate when prompted
Claude Code, Gemini CLI
mcp-remote
Run npx mcp-remote against the Metricool URL, then OAuth or X-Mc-Auth
Claude Desktop
Other documented auth options for MCP clients are OAuth sign-in, or providing METRICOOL_USER_TOKEN and METRICOOL_USER_ID in the client configuration. See FAQs about the Metricool MCP.
Connection problems
Open the symptom that matches what you see. Each section covers one verified failure mode and the fix.
Claude Desktop does not connect through the usual path
Claude Desktop has a documented external bug that blocks the usual MCP connection path. Use mcp-remote instead.
In Claude Desktop, open Settings from your profile.
Go to Developer → Edit config under Local MCP servers.
The client never finishes connecting or stays unauthenticated
The endpoint, method, or authorization step is incomplete. Fix it in this order:
Confirm the server URL is exactly https://ai.metricool.com/mcp (no extra path, space, or alternate host).
Confirm your client is using the method from the table above. For example, N8N needs header auth, not a plain OAuth-only setup; Claude Desktop needs mcp-remote.
Complete the browser sign-in and choose Grant access when Metricool asks for permissions.
In Cursor, after install the server can appear unauthenticated until you click Connect and finish browser authorization.
In Gemini CLI, after adding the config, run /mcp auth metricool and finish browser authorization.
In Claude Code, run /mcp, select Metricool, then authenticate when prompted.
N8N header authentication fails
N8N connects with header token auth, not the URL-only OAuth flow used by most other clients.
In the MCP Client Tool, set the endpoint to https://ai.metricool.com/mcp.
Claude Free cannot add Metricool as another custom connector
Remote MCP custom connectors are available on Claude Free, Pro, Max, Team, and Enterprise. Free users can use only one custom connector at a time.
Remove or replace the existing custom connector, then connect Metricool again. Claude Code still requires a Pro or Max subscription. See How to connect Metricool's MCP with Claude.
Claude Code will not accept the MCP add command
Claude Code requires a Pro or Max subscription and installation from the Claude Code product page before you can add Metricool.
Confirm Claude Code is installed and you are on Pro or Max.
Run:
claude mcp add --transport http metricool https://ai.metricool.com/mcp
Start Claude Code with claude, run /mcp, select Metricool, and authenticate.
Cursor does not show the Metricool MCP install flow
Cursor MCP setup requires the Cursor Desktop app. Browser-only Cursor cannot complete the documented install path.
Click Connect, authorize Metricool in the browser, and return to Cursor to confirm the connection.
The MCP connects, but actions fail or data looks limited
That is usually a plan limit, not a failed server connection. The MCP works on Free and paid plans, but Metricool plan limits still apply to what the MCP can query or schedule.
Make, Zapier, Smithery, Mistral Vibe, TypingMind, N8N: after grant access (or saving header credentials in N8N), the client shows the connector or tools as available.
Revoke access and reconnect
To revoke access, remove or disconnect the Metricool connector from the AI client or platform where you authorized it (for example Claude, ChatGPT, Cursor, or another MCP client). You cannot revoke that connector permission from inside Metricool.
After you revoke access on the platform, reconnect by repeating that client’s connection steps and granting access again if you need the MCP back.