Setup
Codex is the recommended OpenAI client for Martini agent workflows. OpenAI includes Codex across ChatGPT plans, although usage limits vary by plan.
- Open the ChatGPT desktop app, select Codex, then open Settings → MCP servers.
- Add a Streamable HTTP server named Martini with
https://www.martini.film/mcpas its URL. - Select Authenticate, sign in to Martini, then restart Codex.
- Type
/mcpin Codex to confirm Martini is connected.
CLI or IDE setup
The ChatGPT desktop app, Codex CLI, and Codex IDE extension share the same MCP configuration.
If Codex does not open the Martini sign-in flow automatically, run:
Browser-only use
Codex Cloud runs coding tasks from a browser against connected GitHub repositories. It does not read the MCP configuration on your computer. Use the desktop app, CLI, or IDE extension for Martini’s MCP connector.
If you need a browser-only Martini conversation, use the ChatGPT setup.
Verify connection
- Ask “show me my latest projects.”
- Approve the first tool calls only after the client shows the expected Martini project or asset target.
Disconnect or revoke
Remove Martini from Codex:
You can also remove Martini from Settings → MCP servers in the ChatGPT desktop app.
Troubleshooting
If setup fails, confirm the server URL is https://www.martini.film/mcp, reload the client’s MCP servers, then authenticate again. For browser-based clients, make sure the client domain is allowed by Martini’s MCP origin policy.