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Codex connects to remote MCP servers over streamable HTTP natively and runs the OAuth flow itself, so no wrapper package is needed.

Before you start

  • A StackOne project you are a member of.
  • A connector profile in the project for each provider the client should reach, with the actions you want exposed enabled.
  • (Optional) A linked account for each provider. Accounts can also be linked during the consent flow.

Connect StackOne

1

Add the server to Codex

Or add it to ~/.codex/config.toml by hand:
2

Sign in and authorize

Run:
  1. Sign in to StackOne. In a desktop app or code editor, this opens in your browser.
  2. If StackOne asks for a project, pick yours and click Continue to Accounts.
  3. Pick the work systems Codex can use (your Linked Accounts).
  4. If you see Load tools when needed, leave it on.
  5. Click Authorize.
StackOne's Select accounts screen with two Linked Accounts ticked, Load tools when needed on, and the Authorize button
Codex stores the tokens, so later runs start without a prompt.
3

Check it works

Run codex and ask:
Codex reaches only the Linked Accounts you approved when you connected. To add one you link later, or one someone shares with you afterwards:
1

Open Connected Apps

In the StackOne dashboard, go to Connected Apps.
2

Edit the connection

  1. Open the ⋮ menu on the row for Codex and select Edit tool access.
  2. Select the Linked Account.
  3. Click Save changes.
To review or revoke the connection, use the same ⋮ menu in Connected Apps.