> For the complete documentation index, see [llms.txt](https://docs.openalgo.in/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openalgo.in/api-documentation/v1/orders-api/cancelallorder.md).

# CancelAllOrder

Cancel all open orders and trigger pending orders in a single request.

## Endpoint URL

```http
Local Host   :  POST http://127.0.0.1:5000/api/v1/cancelallorder
Ngrok Domain :  POST https://<your-ngrok-domain>.ngrok-free.app/api/v1/cancelallorder
Custom Domain:  POST https://<your-custom-domain>/api/v1/cancelallorder
```

## Sample API Request

```json
{
  "apikey": "<your_app_apikey>",
  "strategy": "Python"
}
```

## Sample cURL Request

```bash
curl -X POST http://127.0.0.1:5000/api/v1/cancelallorder \
  -H 'Content-Type: application/json' \
  -d '{
  "apikey": "<your_app_apikey>",
  "strategy": "Python"
}'
```

## Sample API Response

```json
{
  "status": "success",
  "message": "Canceled 5 orders. Failed to cancel 0 orders.",
  "canceled_orders": [
    "250408001042620",
    "250408001042667",
    "250408001042642",
    "250408001043015",
    "250408001043386"
  ],
  "failed_cancellations": []
}
```

## Sample API Response (Partial Success)

```json
{
  "status": "success",
  "message": "Canceled 3 orders. Failed to cancel 2 orders.",
  "canceled_orders": [
    "250408001042620",
    "250408001042667",
    "250408001042642"
  ],
  "failed_cancellations": [
    {
      "orderid": "250408001043015",
      "reason": "Order in transit"
    },
    {
      "orderid": "250408001043386",
      "reason": "Order already executed"
    }
  ]
}
```

## Request Body

| Parameter | Description           | Mandatory/Optional | Default Value |
| --------- | --------------------- | ------------------ | ------------- |
| apikey    | Your OpenAlgo API key | Mandatory          | -             |
| strategy  | Strategy identifier   | Optional           | -             |

## Response Fields

| Field                 | Type   | Description                              |
| --------------------- | ------ | ---------------------------------------- |
| status                | string | "success" or "error"                     |
| message               | string | Summary of cancellation results          |
| canceled\_orders      | array  | List of successfully cancelled order IDs |
| failed\_cancellations | array  | List of orders that failed to cancel     |
| mode                  | string | "live" or "analyze"                      |

### Failed Cancellations Array Fields

| Field   | Type   | Description                    |
| ------- | ------ | ------------------------------ |
| orderid | string | Order ID that failed to cancel |
| reason  | string | Reason for failure             |

## Notes

* Cancels **all open orders** including:
  * Open limit orders
  * Pending trigger orders (SL, SL-M)
  * AMO orders (if supported by broker)
* Orders that are **already executed** or **in transit** cannot be cancelled
* The API returns success even if some orders fail to cancel
* Use **strategy** parameter to track which strategy initiated the cancellation
* This is a **bulk operation** - use with caution in production

## Use Cases

* **Emergency exit**: Cancel all pending orders when market moves unexpectedly
* **End of day cleanup**: Cancel unfilled orders before market close
* **Strategy reset**: Clear all pending orders before starting fresh

***

**Back to**: [API Documentation](/api-documentation/v1.md)