# List maintenance windows

`GET https://evohub.io/api/v1/maintenance-windows`

Part of the [On-Call API](https://docs-dev.evohub.io/oncall.md) reference · operationId `listMaintenanceWindows`.

Lists the organization's maintenance windows — scheduled, running and past.
With `active=true`, only the windows in effect right now.

**Permission (API-key scope):** `oncall:maintenance:read`.

## Authorization

Any one of:

- `bearerAuth` (oncall:maintenance:read)
- `apiKeyHeader` (oncall:maintenance:read)

Where:

- `bearerAuth`: HTTP Bearer — An EvoHub API key (`evohub_…`) as a bearer token.
- `apiKeyHeader`: API key in the header `X-API-Key` — An EvoHub API key (`evohub_…`).

## Query parameters

- `active` (string, value `true`): `true` for only the windows in effect now.

## Responses

### 200 — The windows.

Content type: `application/json`

Type: `object`

- `data` (array of MaintenanceWindow, required)
  - `id` (string)
  - `org_id` (string)
  - `title` (string)
  - `body` (string): What the maintenance does.
  - `starts_at` (string (date-time))
  - `ends_at` (string (date-time))
  - `created_by` (string)
  - `created_at` (string (date-time))
  - `ended_at` (string (date-time)): Set when the window was ended early.
  - `silence_oncall` (boolean): Whether paging is held back during the window.
- `success` (boolean, required, value `true`)

### 401 — No API key was sent, or it is unknown, revoked or expired (`UNAUTHORIZED`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 403 — The key lacks the scope this endpoint needs (`FORBIDDEN`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 429 — Too many requests (`RATE_LIMITED`). Wait `Retry-After` seconds.

Headers:

- `Retry-After` (integer): Seconds to wait.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 500 — Something went wrong on EvoHub's side (`INTERNAL_ERROR`). Retry later.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

## Example request

```bash
curl -X GET 'https://evohub.io/api/v1/maintenance-windows' \
  -H 'Authorization: Bearer <TOKEN>'
```