> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# deepline health

> Check server health.

## health

```text theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
Usage: deepline health [options]

Check server health.

Options:
  --json         Force JSON output.
  --play-runner  Run a tiny no-provider play to verify the full play execution
                 plane.
  -h, --help     display help for command
```

```text theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
Explanation:
  Purpose:
    Read-only check that the configured Deepline host answers. Needs no API
    key; --play-runner does.
  When:
    Only when a command cannot reach the server, or with --play-runner to prove
    the whole play execution plane works.
  Input:
    No arguments. --play-runner runs a tiny no-provider play end to end.
  Output:
    Text: "<host>: <status>", then any service notice. --json: the server
    health object plus status_banner (null when there is no notice). With
    --play-runner,
    {status, playRunner: {status, check}}. An unreachable host exits nonzero
    with "Cannot reach Deepline API: <reason>".
  Cost:
    Free. --play-runner uses no providers.
  Avoid:
    Do not use health to check auth or balance; use auth status or billing
    balance.
```


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