FIX: Connect MCP to Codex IDE Extension (config.toml workaround)

config.toml

[projects."/home/devloper_hs/codex-tests"]
trust_level = "untrusted"

[mcp_servers.playwright]
args = ["@playwright/mcp@latest"]
command = "npx"
enabled = false

[mcp_servers.rube]
enabled = true
url = "https://rube.app/mcp"

[mcp_servers.rube.http_headers]
Authorization = "Bearer <auth-token>"

steps

I figured out a workaround, here is what you need to do:

 - Visit any ide, download [codex extension](https://marketplace.visualstudio.com/items?itemName=OpenAI.chatgpt) and login.
- Now instead of creating a `.codex/config.toml` file, head to ⚙️ → MCP Settings → Open MCP Settings → + Add servers (Custom Servers)
- In the new page select Streamable HTTP and enter the following details (as i am using rube mcp): 
- Name: name of MCP server (rube)
- URL: https://rube.app/mcp
- Headers:
    - Key: Authorization
    - Value: Bearer <your-rube-token> (copied from earlier)
    - click **Save**
- Go back, refresh and click authenticate. Complete the authentication process and you are done!

Below is how this setup ups in config.toml file!

But its marketplace doesn't have Playwright MCP.

Its not about rube, i just shared, how you can use it through config.toml file. You need to do it manually. But I think, now they might have fixed it. Rube was just part of some other step, but I shared how I did it.