---
title: "Connect your agent"
description: "Set up Claude Code or Codex once so the HyperFrames Studio app can build and change your videos."
---

The app makes your videos with an agent that runs on your computer: **Claude Code** or **Codex**. You set one up
once. After that, every request you send goes to it.

| Agent | You need |
| --- | --- |
| Claude Code | A Claude account or an Anthropic Console account. The app installs it for you. |
| Codex | A ChatGPT account. You install it and sign in with two commands. |

Runs bill to the plan of the account your agent is signed in with. To use an API key instead, change **Bill runs
to** in **Settings** > **Permissions**.

If both are ready and you have not picked one, the app uses Claude Code.

## Claude Code

The first time you send a request without an agent, the **Connect Claude Code** screen opens with three steps.

<Steps>
  <Step title="Install Claude Code">
    Choose **Install Claude Code**, then **Install** in the dialog. The app runs Anthropic's official installer,
    which puts Claude Code in your home folder. It takes about a minute.
  </Step>
  <Step title="Sign in">
    Choose **Sign in to Claude**. Your browser opens Claude's sign-in. Use your Claude account or an Anthropic Console
    account, then come back to the app.
  </Step>
  <Step title="Check that it answers">
    The app checks that Claude Code runs. When it shows **Claude Code is connected**, it sends the request you
    started with.
  </Step>
</Steps>

If a step fails, the app shows a command you can run yourself. Choose **Copy command**, then **Open Terminal**, and
paste it:

```bash
# Install Claude Code
curl -fsSL https://claude.ai/install.sh | bash

# Sign in
claude auth login
```

## Codex

The app does not install Codex for you. Open **Settings** > **Agent** or the agent picker in the chat header, find
Codex, and use its buttons:

1. **Copy install command**, then paste it into a terminal:
   ```bash
   curl -fsSL https://chatgpt.com/codex/install.sh | sh
   ```
2. **Copy sign-in command** (`codex`), run it in a terminal, and sign in with your ChatGPT account.
3. Back in the app, choose **Check again**. Codex shows **Ready**.

## Switch agents

Use the agent picker in the chat header, or **Settings** > **Agent**, and choose **Use** next to the agent you want.
The choice applies to your next request.

Each agent row shows its state: **Ready**, **Not signed in**, **Not installed**, or **Installed, but won't start**,
with the button that fixes it.

## Related topics

- [Make your first video](/studio-app/first-video)
- [Updates and troubleshooting](/studio-app/troubleshooting)