# Agents in your product

Stream each user's agent to your UI over SSE, filtered to one conversation:

```python
for event in box.prompt("Build a landing page", budget_usd=2):
    send_to_browser(event["type"], event["data"])
```

Pass your user's own key with `env`, or use a proxy rule so that the key stays out of their VM. Show a `prompt.budget_exceeded` as a normal product message.