Does Codex support the Hugging Face MCP server?

Yes. Codex connects to the Hugging Face 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 Hugging Face to Codex?

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

Which Hugging Face tools can Codex use?

All 29 Hugging Face tools your team allows, such as Control Space, Run Inference, Create Discussion. Admins can narrow that list per team.

Can I control which teammates use Hugging Face in Codex?

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

What if Codex doesn't show Hugging Face tools?

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

Connect Hugging Face to Codex (MCP setup guide)

Ask Codex to use the get file content tool in Hugging Face
Ask Codex to use the text generation tool in Hugging Face
Ask Codex to use the chat completion tool in Hugging Face
Ask Codex to use the delete file tool in Hugging Face
Ask Codex to use the update discussion status tool in Hugging Face

1. Enable Hugging Face in Metorial
In your Metorial portal, enable the Hugging Face 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 Hugging Face tools.

Once Hugging Face 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.

Control Space: Control a Space's lifecycle: pause, restart, or change hardware.
Run Inference: Run generic inference on any Hugging Face model.
Create Discussion: Create a new discussion or pull request on a Hugging Face repository.
Search Datasets: Search for datasets on Hugging Face Hub.
Create Collection: Create a new collection to curate related models, datasets, and Spaces.
Manage Space Secrets: Add or delete secrets on a Space.
Get Discussion: Get detailed information about a specific discussion or pull request, including all comments and events.
List Discussions: List discussions and pull requests on a Hugging Face repository.
Get User Info: Get information about the authenticated user, including username, email, organizations, and account details.
Create Repository: Create a new model, dataset, or Space repository on Hugging Face Hub.
Delete Repository: Permanently delete a model, dataset, or Space repository from Hugging Face Hub.
Upload File: Upload or update a text file in a Hugging Face repository.
Remove Collection Item: Remove an item from a collection.
Update Repository Visibility: Change a repository's visibility between public and private.
List Repository Files: List files and directories in a Hugging Face repository at a given path and revision.
And 14 more on the Hugging Face MCP server page.

Limit which Hugging Face 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 Hugging Face 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 Hugging Face to AI agents with Metorial.

Does Codex support the Hugging Face MCP server?
Yes. Codex connects to the Hugging Face 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 Hugging Face to Codex?
No. You sign in to Hugging Face once through Metorial, and Codex uses that connection. No API keys go into Codex's settings.
Which Hugging Face tools can Codex use?
All 29 Hugging Face tools your team allows, such as Control Space, Run Inference, Create Discussion. Admins can narrow that list per team.
Can I control which teammates use Hugging Face in Codex?
Yes. Role-based access control decides who can use Hugging Face and which of its tools appear in Codex, and every call is logged with the person's identity.
What if Codex doesn't show Hugging Face tools?
Codex can connect without credentials and then see nothing. Run codex mcp login metorial to complete the OAuth sign-in.