# GET /api/v1/accounting-periods/{period_id}

> Get accounting period

- **Tag:** accounting-periods
- **Operation ID:** `get_period_api_v1_accounting_periods__period_id__get`

## Description

Get details of a specific accounting period.

## Authentication

Bearer token in `Authorization` header.
Required header: `x-business-id: <business uuid>`.

## Parameters

- `period_id` (path, string, required)

## Responses

### 200 — Successful Response

Schema: `AccountingPeriodResponse`

- `id` (string · required) — Period UUID
- `business_id` (string · required) — Business UUID
- `period_start` (string · date · required) — Start date of the period
- `period_end` (string · date · required) — End date of the period
- `status` (string · required) — Status: open, closed, or locked
- `closed_at` (string · date-time) — When period was closed
- `closed_by_user_id` (string) — User who closed the period
- `lock_reason` (string) — Reason period was closed
- `reopen_reason` (string) — Reason period was reopened
- `reopened_at` (string · date-time) — When period was reopened
- `reopened_by_user_id` (string) — User who reopened the period
- `created_at` (string · date-time · required) — Creation timestamp
- `updated_at` (string · date-time · required) — Last update timestamp

### 401 — Unauthorized - Authentication required

### 403 — Forbidden - Insufficient permissions

### 404 — Not Found - Resource does not exist

### 422 — Validation Error

Schema: `HTTPValidationError`

- `detail` (array · ValidationError) → `ValidationError`
  - `loc` (array · string | integer · required)
  - `msg` (string · required)
  - `type` (string · required)
  - `input` (object)
  - `ctx` (object)

## Code samples

### cURL

```bash
curl -X GET 'https://api.ondayzero.com/api/v1/accounting-periods/{period_id}' \
  -H 'Authorization: Bearer dz_your_token' \
  -H 'x-business-id: YOUR_BUSINESS_ID'
```

### JavaScript

```javascript
const response = await fetch('https://api.ondayzero.com/api/v1/accounting-periods/{period_id}', {
  method: 'GET',
  headers: {
    Authorization: 'Bearer dz_your_token',
    'x-business-id': 'YOUR_BUSINESS_ID',
  },
});
const data = await response.json();
```

### Python

```python
import httpx

headers = {
    "Authorization": "Bearer dz_your_token",
    "x-business-id": "YOUR_BUSINESS_ID",
}

response = httpx.get("https://api.ondayzero.com/api/v1/accounting-periods/{period_id}", headers=headers)
data = response.json()
```

## See also

- HTML version: https://www.ondayzero.com/docs/reference/accounting-periods/get-period
- OpenAPI slice: https://www.ondayzero.com/docs/reference/accounting-periods/get-period/openapi.json
- Other endpoints in **accounting-periods**: https://www.ondayzero.com/docs/reference/accounting-periods