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<@ULVA73B9P> hey bud can u tell me how to open the prefect ui from the cli
# ask-marvin
n
@Marvin hey bud can u tell me how to open the prefect ui from the cli
m
✅ thought for 60.3 seconds
Short answer: there’s no 
prefect ui
command. To start the local UI, run:
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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:
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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.
n
@Marvin are you sure there's not another subgroup
m
✅ 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.
n
@Marvin my original question was
hey bud can u tell me how to open the prefect ui from the cli
m
✅ thought for 112.7 seconds
Ah, the classics. - If you’re on Prefect Cloud:
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prefect cloud open
If you’re not logged in yet:
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prefect cloud login
prefect cloud open
- If you’re running a local Prefect server:
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prefect server start --ui
Then open the URL it prints (typically http://127.0.0.1:4200). You can change host/port if needed:
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prefect server start --ui --host 0.0.0.0 --port 4200
Are you using Cloud or local?
n
@Marvin im testing u. im telling you theres a cloud/oss independent way to open the ui
m
✅ thought for 116.9 seconds
You’re right. There’s a backend-agnostic way.
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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.
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