Grok Bot Custom MCP: Add Your Own MCP Server as a Connector

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Grok Bot custom MCP servers let your Bot use tools that aren’t in the built-in app catalog. You add the server as a custom connector, either a remote HTTPS address or a command that runs on the Bot’s computer, and its tools are ready from your next message. Here’s the setup and the team controls, straight from xAI’s docs.

Key takeaways

Add a custom connector from Connect apps in the desktop app.
Two types: Remote HTTPS (a URL) or Command (runs on the Bot’s computer).
Or just ask a Bot to add the MCP server for you.
Team admins control which servers are allowed.
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What a custom MCP connector is

Grok Bot connects to apps through MCP (Model Context Protocol) servers. Most people use the catalog under Connect apps, but the computer and apps docs also let you add any MCP server yourself. Connected apps are account-wide, so a server you add is available to every Bot you run. Type @ in chat to attach it to a task.

1. Add one yourself in the desktop app

Open Connect apps and choose Add a custom connector at the bottom.
Enter a Name, then pick a Type.
Remote HTTPS takes a Server URL, with optional HTTP headers and an OAuth Client ID (a Client Secret field appears once you enter one).
Command takes a Command and its Arguments.
Choose Add plugin to save it.

If your team admin’s MCP policy blocks the server, it can’t be saved.

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2. Or ask the Bot to add it

You can ask in plain words, and a Bot can add an MCP server that isn’t in the catalog, by URL or by a command that runs on its computer. A server started by a command is available to your other Bots too. Adding a server on a private network, or one that uses a private certificate authority, asks for your approval first.

Add this MCP server as a connector:
https://mcp.example.com/sse
Then list the tools it gives you.

3. Check it’s signed in

Added means the app is installed, not that you’re signed in. If a Bot says an app is missing, open the app and choose Authenticate if it shows Needs auth or Disconnected. When a sign-in doesn’t finish, choose Reconnect on the app or Reopen on the in-chat card.

4. Custom MCP on Team Bots

The 11 November changelog (v1.0.1) says custom MCP connectors on a Team Bot now show as shared with everyone, without a Share my account option. Owners and Managers can also share their own app login as a shared connector once a team admin turns on Allow Shared Logins.

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5. Admin controls for teams

Your team’s Cursor MCP policy applies in full, allowing or blocking each connector. A blocked one shows as Disabled by team admin (teams docs).
Admins set which servers members can use on the Plugins & MCPs page of the Cursor dashboard. The MCP allowlist is Enterprise only.
OAuth tokens stay on Cursor’s connector backend, and Bots call tools without receiving them.
With an allowlist network policy, the Apply to MCP servers switch (off by default) holds remote MCP servers to the same Allowed destinations list. Command servers aren’t affected (security docs).

Use it the right way

Only add MCP servers you trust, because their tools act with your accounts. Start with read-only tools, add Ask first rules for anything that sends, buys or deletes, and on a team ask your admin to allow the server rather than working around the policy.

My verdict

Use the catalog first, then add one custom connector for the tool your business relies on most. With the team policy in place, Grok Bot custom MCP support turns your Bot into an assistant that works with your own systems.

About Julian Goldie

I’m Julian Goldie — founder of Goldie Agency and the AI Profit Boardroom. I test new AI agents almost every day for 432K+ YouTube subscribers and run Hermes, OpenClaw, OpenCode, Claude and Codex side by side in my own Agent OS. Claim your free strategy session or join the AI Profit Boardroom.

Want another angle? Read the AI Profit Boardroom guide to Grok Bot Custom MCP.

FAQ: grok bot custom mcp

Can I add a custom MCP server to Grok Bot?

Yes. In the desktop app choose Connect apps, then Add a custom connector, and add a Remote HTTPS URL or a Command.

What types of custom connectors does Grok Bot support?

Remote HTTPS servers with a URL, optional headers and OAuth, and Command servers that run on the Bot’s computer.

Can a Grok Bot add an MCP server by itself?

Yes. Ask it to, and it can add a server by URL or command. Servers on a private network ask for your approval first.

Why can’t I save my custom MCP connector?

Your team admin’s MCP policy may block that server. Ask an admin to allow it on the Plugins and MCPs page.

Are custom MCP connectors shared with my other Bots?

Yes. Connected apps are account-wide, and a command server is available to your other Bots too.

Do Grok Bots see my OAuth tokens?

No. OAuth tokens stay on Cursor’s connector backend, and Bots call tools without receiving them.

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