# Connect your agents

Install an agent's CLI, then add its account under Settings → Agents. Claude Code, Codex, Cursor and Devin sign in from Studio; Grok signs in through its CLI.

*Where in Studio: Studio → Settings → Agents*

*Last updated: 2026-10-25*

Studio runs each agent through the agent's own command-line tool, with your own account for that provider. Install the CLI first, then add the account under **Settings → Agents**. Studio finds a CLI the same way your terminal does: if the command runs in your terminal, Studio finds it too.

| Agent | CLI Studio looks for | How you sign in |
| --- | --- | --- |
| Claude Code | `claude` | **Add account** in Studio: a browser sign-in, then paste a code |
| Codex | `codex` | **Add account** in Studio: a browser sign-in to OpenAI |
| Cursor | `cursor-agent` | **Add account** in Studio: a browser sign-in to Cursor |
| Devin | `devin` | **Add account** in Studio: a browser sign-in, then paste a token |
| Grok | `grok` | In the `grok` CLI itself |

An agent whose CLI is missing reads **Not installed** in the list, and its page says which CLI to install. The list can also include other agents Studio supports, such as Hermes and Pi; like Grok, they sign in through their own CLI.

![Settings, Agents with Claude Code selected: the Show in composer switch and an Accounts card with one account.](https://kelrova.com/docs/img/studio-getting-started/agents.png)

*Settings → Agents with Claude Code selected: Show in composer, and the Accounts card with one account.*

## Add an account

*Studio → Settings → Agents*

1. **Pick the agent**

   Open **Settings → Agents** and choose the agent in the list. Each row shows a one-line status, such as **No account**, **Signed in**, or the account's plan with its usage.

2. **Choose Add account**

   Under **Accounts**, choose **Add account**. Your browser opens on the provider's sign-in page.

3. **Finish the sign-in**

   What happens next depends on the agent:

   - **Claude Code**: sign in to Claude and approve access, then paste the complete code into the dialog and choose **Connect**.
   - **Codex**: finish signing in to OpenAI in the browser while the dialog shows **Waiting for the browser…**. The new login is kept separate, so your current one is untouched until you switch.
   - **Cursor**: finish signing in to Cursor in the browser. Studio keeps this login apart from your `cursor-agent` login.
   - **Devin**: sign in to Devin and approve access, then paste the complete token and choose **Connect**. The Devin CLI stores the login.

   If the browser tab was closed, use **Reopen the authorization page** or **Reopen the sign-in page** in the dialog.

If you already signed in to Claude Code or Codex in a terminal, Studio detects that login and lists it under **Accounts** without any step here. **No account detected on this device.** means it found none.

## Several accounts

Claude Code and Codex can each hold several accounts. The selected one is the default for new chats, and existing chats use it from their next message, unless a chat picked its own account. Choose **Switch** on another account's row to change the default. The agent in a terminal keeps its own login, whichever account is selected here. [Models, reasoning and accounts](https://kelrova.com/docs/studio/chats/models) covers picking an account for one chat.

When a provider rejects a login, the agent reads **Sign in again** in the list. Choose **Renew login** on the account to sign in once more. A saved account that is not selected has a trash button that removes it from Studio. For Cursor, **Disconnect** signs out its login.

## Show or hide an agent

**Show in composer** decides whether the agent appears in the composer's model picker. Turning an agent off keeps its accounts. At least one agent must stay on.

## Agents on another device

The device switcher at the top of the page picks which computer you are setting up, **This device** or one of your servers. The list, the accounts and **Show in composer** all apply to that device, because each device runs agents with its own logins.

Once an account is selected on this computer, **Other devices** can also set up a server for you:

- **Copy login to another device** sends the selected Codex login to the server you pick.
- **Add an account on another device** starts a Claude Code, Cursor or Devin sign-in on the server you pick. The login stays on that server.

Both need a server that is already connected; see [Add a server](https://kelrova.com/docs/studio/devices/add-server).

## Next

[Your first chat](https://kelrova.com/docs/studio/getting-started/first-chat).

## Related

- [Models, reasoning and accounts](https://kelrova.com/docs/studio/chats/models)
- [Your first chat](https://kelrova.com/docs/studio/getting-started/first-chat)
- [Add a server](https://kelrova.com/docs/studio/devices/add-server)
- [Settings map](https://kelrova.com/docs/studio/reference/settings)