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

# Call the API

> Authenticate an HTTP request to Albus.

Set an API key in your shell. Keep the value secret and never commit it.

```bash theme={null}
export ALBUS_API_KEY="your-api-key"
```

Call the health endpoint:

```bash theme={null}
curl --fail-with-body \
  --header "Authorization: Bearer $ALBUS_API_KEY" \
  https://albus.sh/api/health
```

See the [API reference](/reference/overview) for authentication and every
available operation.