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How do I connect Codex to the Faaaster MCP server?

Codex adds Faaaster as a remote MCP server (Streamable HTTP), then you authorize it with your Faaaster account, with no API key. The ChatGPT desktop app, which now includes Codex, the IDE extension and the Codex CLI share the same configuration: add the server once, from whichever one you prefer.

Server address: https://mcp.faaaster.io/mcp

To limit the agent to a single site, use This site's address instead, copied from the site's AI / MCP tab. Required roles, approvals and the agent's WordPress identity: How do I manage my Faaaster sites from my own AI agent?

From the ChatGPT app or the IDE extension

Open the settings: Settings in the ChatGPT app, the gear menu in the IDE extension.
Select MCP servers, then Add server.
Name the server, for example faaaster, choose Streamable HTTP and enter https://mcp.faaaster.io/mcp as the address.
Save, then select Restart in the app, or Restart extension in the IDE extension.
In the server list, select Authenticate for faaaster. Your browser opens the Faaaster sign-in page: sign in and authorize access.

To check, ask in a Codex conversation: "List my Faaaster sites."

From the Codex CLI

Add the server:
```
codex mcp add faaaster --url https://mcp.faaaster.io/mcp
```
To target a single site, use that site's address instead, in quotes: it contains ? and &, which the terminal would interpret.
Sign in:
```
codex mcp login faaaster
```
Your browser opens the Faaaster sign-in page. On a machine without a browser, over SSH for example, add --no-browser: open the printed address in a browser, sign in, then paste the full redirect address back into the terminal, even if that page doesn't load.
Check with codex mcp list, then ask in a codex session: "List my Faaaster sites."

Authenticate again

App or IDE extension: in the MCP servers list in the settings, select Authenticate for faaaster.
CLI: codex mcp login faaaster.

Revoke access

codex mcp logout faaaster removes the OAuth credentials stored for Faaaster.
codex mcp remove faaaster deletes the server from the configuration, so also from the app and the extension, which share it.

To cut access on the Faaaster side, whatever the agent, see the Cut access section of the article on the Faaaster MCP server.

OpenAI documentation

Updated on: 11/09/2026

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