Does Codex support the Microsoft Teams MCP server?

Yes. Codex connects to the Microsoft Teams MCP server through one CLI command, pointed at your Metorial URL. You need the Codex CLI, IDE extension or ChatGPT desktop app.

Do I need an API key to connect Microsoft Teams to Codex?

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

Which Microsoft Teams tools can Codex use?

All 19 Microsoft Teams tools your team allows, such as List Channels, List Chat Messages, List Teams. Admins can narrow that list per team.

Can I control which teammates use Microsoft Teams in Codex?

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

What if Codex doesn't show Microsoft Teams tools?

Codex can connect without credentials and then see nothing. Run codex mcp login metorial to complete the OAuth sign-in.

Connect Microsoft Teams to Codex

Ask Codex to use the list chat messages tool in Microsoft Teams
Ask Codex to use the list teams tool in Microsoft Teams
Ask Codex to use the update team tool in Microsoft Teams
Ask Codex to use the send channel message tool in Microsoft Teams
Ask Codex to use the manage online meeting tool in Microsoft Teams

1. Enable Microsoft Teams in Metorial
In your Metorial portal, enable the Microsoft Teams MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
2. Add the server and sign in
The Codex CLI, IDE extension and ChatGPT desktop app share this config.
```
codex mcp add metorial --url <your-magic-mcp-url>
codex mcp login metorial
```
3. Check the connection
Type /mcp in Codex to see Metorial and its Microsoft Teams tools.

Once Microsoft Teams is enabled in Metorial, teammates sign in with SSO and get the same connection in Codex, 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.

List Channels: List all channels in a Microsoft Team.
List Chat Messages: List recent messages in a specific chat, newest first.
List Teams: List all Microsoft Teams that the authenticated user has joined.
Update Team: Update properties of an existing Microsoft Team such as display name, description, visibility, or settings.
Send Channel Message: Send a message to a channel in a Microsoft Team.
Manage Online Meeting: Create, get, update, delete, or look up a Microsoft Teams online meeting organized by the signed-in user.
Send Chat Message: Send a message in an existing chat.
Manage Members: List, add, or remove members from a Microsoft Team or a specific channel.
Manage Shifts: Manage workforce shifts for a Microsoft Team.
Create Team: Create a new Microsoft Team.
List Chats: List the authenticated user's chats in Microsoft Teams.
Manage Tags: Create, list, update, or delete tags for a Microsoft Team.
Delete Team: Permanently delete a Microsoft Team and its associated Microsoft 365 group.
Manage Channel: Create, update, or delete a channel in a Microsoft Team.
Get Presence: Get the presence status (availability and activity) of one or more users in Microsoft Teams.
And 4 more on the Microsoft Teams MCP server page.

Limit which Microsoft Teams tools Codex sees with enabled_tools and disabled_tools on the metorial server in config.toml.
Set default_tools_approval_mode to auto, prompt, writes or approve. writes prompts only for tools that are not marked read-only.
Type /mcp in the composer to see the connected servers.
Override the approval behavior for a single Microsoft Teams tool with tools.<tool>.approval_mode.

Metorial is listed but tools are missing: Codex can connect without credentials and then see nothing. Run codex mcp login metorial to complete the OAuth sign-in.
Metorial times out at startup: Codex waits 10 seconds by default. Raise startup_timeout_sec under [mcp_servers.metorial] in ~/.codex/config.toml.
Long tool calls fail after a minute: The default tool timeout is 60 seconds. Raise tool_timeout_sec for the metorial server in config.toml.

Based on the Codex MCP documentation.

Frequently asked questions

Common questions about connecting Microsoft Teams to AI agents with Metorial.

Does Codex support the Microsoft Teams MCP server?
Yes. Codex connects to the Microsoft Teams MCP server through one CLI command, pointed at your Metorial URL. You need the Codex CLI, IDE extension or ChatGPT desktop app.
Do I need an API key to connect Microsoft Teams to Codex?
No. You sign in to Microsoft Teams once through Metorial, and Codex uses that connection. No API keys go into Codex's settings.
Which Microsoft Teams tools can Codex use?
All 19 Microsoft Teams tools your team allows, such as List Channels, List Chat Messages, List Teams. Admins can narrow that list per team.
Can I control which teammates use Microsoft Teams in Codex?
Yes. Role-based access control decides who can use Microsoft Teams and which of its tools appear in Codex, and every call is logged with the person's identity.
What if Codex doesn't show Microsoft Teams tools?
Codex can connect without credentials and then see nothing. Run codex mcp login metorial to complete the OAuth sign-in.