Does ChatGPT support the Slack MCP server?

Yes. ChatGPT connects to the Slack MCP server through its connector settings, pointed at your Metorial URL. You need a ChatGPT plan or workspace that allows custom MCP servers.

Do I need an API key to connect Slack to ChatGPT?

No. You sign in to Slack once through Metorial, and ChatGPT uses that connection. No API keys go into ChatGPT's settings.

Which Slack tools can ChatGPT use?

All 48 Slack tools your team allows, such as Manage Pins, Manage Channel Members, Get User Info. Admins can narrow that list per team.

Can I control which teammates use Slack in ChatGPT?

Yes. Role-based access control decides who can use Slack and which of its tools appear in ChatGPT, and every call is logged with the person's identity.

What if ChatGPT doesn't show Slack tools?

Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.

Connect Slack to ChatGPT (MCP setup guide)

Ask ChatGPT to use the send message tool in Slack
Ask ChatGPT to use the schedule message tool in Slack
Ask ChatGPT to use the manage reminders tool in Slack
Ask ChatGPT to use the manage channel tool in Slack
Ask ChatGPT to use the get conversation history tool in Slack

1. Enable Slack in Metorial
In your Metorial portal, enable the Slack MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
2. Add a custom MCP server
On ChatGPT web, open Plugins, select +, then Add custom MCP server.
3. Paste your Metorial MCP URL
Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>), choose OAuth and accept the risk notice.
4. Create and install the plugin
Select Create as a plugin, install it and sign in to load Slack tools.

Once Slack is enabled in Metorial, teammates sign in with SSO and get the same connection in ChatGPT, with only the tools their role allows.

One link covers every app you approve. See how the MCP gateway handles access, roles and audit logs for the whole company.

Manage Pins: Pin or unpin messages in a Slack channel, or list all pinned items.
Manage Channel Members: Invite users to or remove users from a Slack channel.
Get User Info: Look up a Slack user's profile and status.
Get Team Info: Retrieve information about the Slack workspace (team), including its name, domain, email domain, and icon.
Manage User Groups: Create, update, enable, disable, or list user groups (also known as @mention handle groups) in Slack.
Send Message: Send a message to a Slack channel, group DM, or direct message conversation.
Schedule Message: Schedule a message to be sent to a Slack channel at a future time.
Manage Reminders: Create, complete, delete, or list Slack reminders.
Manage Channel: Create, update, archive, unarchive, or configure a Slack channel.
Get Conversation History: Retrieve message history from a Slack channel, DM, or group DM.
Manage Bookmarks: Add, edit, remove, or list bookmarks (saved links) in a Slack channel.
Manage Files: Upload, list, get info about, or delete files in Slack.
Update Message: Update or delete an existing Slack message.
Manage Reactions: Add, remove, or list emoji reactions on a Slack message.
Search Messages: Search messages across a Slack workspace with Real-time Search using keywords or a natural-language question.
And 33 more on the Slack MCP server page.

Type @ and pick the plugin. The selection applies to that message only, so @mention it again when a follow-up needs fresh Slack data.
For write actions, ChatGPT may ask you to confirm first, depending on the app permissions and the action.
Once published for a workspace, ChatGPT keeps a snapshot of the tool list. When your team adds Slack tools in Metorial, an admin refreshes the actions in Workspace settings before they appear.
You can use several apps in one prompt, for example read Slack data and then create a ticket in another app.

Add custom MCP server is missing: Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.
The plugin exists but no tools appear: Creating the plugin is not enough: install it from your plugins, then start a new conversation so ChatGPT loads its tools.
ChatGPT answers without using the tools: Pick the plugin with @ in the composer and name the action you want, for example "use Metorial to look up the latest ticket".

Based on the ChatGPT MCP documentation.

Frequently asked questions

Common questions about connecting Slack to AI agents with Metorial.

Does ChatGPT support the Slack MCP server?
Yes. ChatGPT connects to the Slack MCP server through its connector settings, pointed at your Metorial URL. You need a ChatGPT plan or workspace that allows custom MCP servers.
Do I need an API key to connect Slack to ChatGPT?
No. You sign in to Slack once through Metorial, and ChatGPT uses that connection. No API keys go into ChatGPT's settings.
Which Slack tools can ChatGPT use?
All 48 Slack tools your team allows, such as Manage Pins, Manage Channel Members, Get User Info. Admins can narrow that list per team.
Can I control which teammates use Slack in ChatGPT?
Yes. Role-based access control decides who can use Slack and which of its tools appear in ChatGPT, and every call is logged with the person's identity.
What if ChatGPT doesn't show Slack tools?
Workspace policy controls it. On Enterprise and Edu, an admin grants the permission to create plugins with MCPs; ask them to enable it for you.