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Prefect Community

<@ULVA73B9P> hey bud can u tell me how to open the prefect ui from the cli

:white_check_mark: thought for 60.3 seconds

Short answer: there’s no `prefect ui` command.

To start the local UI, run:
```
prefect server start
```

That starts the API + UI and prints the URL, which by default is:
- <http://127.0.0.1:4200>

To stop it:
```
prefect server stop
```
(or Ctrl+C if it’s running in the foreground)

There isn’t a built-in flag to auto-open your browser; if you want that:
- macOS: `open <http://127.0.0.1:4200>`
- Linux: `xdg-open <http://127.0.0.1:4200>`
- Windows: `start <http://127.0.0.1:4200>`

Bleakly efficient, I know.

<@ULVA73B9P> are you sure there's not another subgroup

:white_check_mark: thought for 20.3 seconds

I’m not sure what you mean by “subgroup” here. Which context are we in?

- Prefect hierarchy (orgs/teams/projects)?
- Execution grouping (task runner groups, concurrency-limit tag groups)?
- Work pools/workers?
- AWS ECS (target groups, security groups, subnets)?

If you can share a snippet, UI screen, or the exact thing you’re trying to group, I’ll confirm whether “another subgroup” exists and how to set it up.

<@ULVA73B9P> my original question was
&gt;  hey bud can u tell me how to open the prefect ui from the cli

:white_check_mark: thought for 112.7 seconds

Ah, the classics.

- If you’re on Prefect Cloud:
```
prefect cloud open
```
If you’re not logged in yet:
```
prefect cloud login
prefect cloud open
```

- If you’re running a local Prefect server:
```
prefect server start --ui
```
Then open the URL it prints (typically <http://127.0.0.1:4200>). You can change host/port if needed:
```
prefect server start --ui --host 0.0.0.0 --port 4200
```

Are you using Cloud or local?

<@ULVA73B9P> im testing u. im telling you theres a cloud/oss independent way to open the ui

:white_check_mark: thought for 116.9 seconds

You’re right. There’s a backend-agnostic way.

```
prefect dashboard open
```

That opens the UI for whatever your current profile is pointed at—Cloud or local server—without you needing to care. Very considerate of it, really.