Cancel TWAP Order - Pacifica

POST /api/v1/orders/twap/cancel

Cancelling stops further sub-orders. Fills that already happened stay. The order’s status becomes cancelled. Cancel all orders also cancels TWAP orders in the markets it covers. This endpoint cancels TWAP orders only. To cancel a TWAP order strategy, use Cancel order strategy.

Operation Type (for Signing)

Header Field	Type	Content
`"type"`	string	`"cancel_twap_order"`

Request Body

Field	Type	Need	Description	Example
`”account”`	string	required	User’s wallet address	`42trU9A5…`
`“signature”`	string	required	Cryptographic signature	`5j1Vy9Uq…`
`“timestamp”`	integer	required	Current timestamp in milliseconds	`1716200000000`
`”symbol”`	string	required	Trading pair symbol of the TWAP order	`BTC`
`”order_id”`	integer	required (if no CLOID)	TWAP order ID	`13753364`
`”client_order_id”`	Full UUID string	required (if no OID)	Client-defined order ID of the TWAP order	`f47ac10b-58cc-4372-a567-0e02b2c3d479`
`”agent_wallet”`	string	optional	Agent wallet address	`69trU9A5…`
`“expiry_window”`	integer	optional	Signature expiry in milliseconds	`30000`

If you send both order_id and client_order_id, Pacifica uses client_order_id.

{
  "account": "42trU9A5...",
  "signature": "5j1Vy9Uq...",
  "timestamp": 1716200000000,
  "symbol": "BTC",
  "order_id": 13753364,
  "agent_wallet": "69trU9A5...",
  "expiry_window": 30000
}

Response

Status 200: Request accepted

  {
    "success": true,
    "data": null,
    "error": null,
    "code": null
  }

The response is the same when no open TWAP order has that order_id. To confirm the cancel, check order_status in Get TWAP order history by ID.

Status 400: Invalid request body
Status 422: The engine rejected the request, for example because no open TWAP order has that client_order_id

  {
    "success": false,
    "data": null,
    "error": "TwapUnusedClientOrderId(f47ac10b-58cc-4372-a567-0e02b2c3d479)",
    "code": 0,
    "error_id": "unspecified"
  }

Status 500: Internal server error

Code Example (Python)

import requests

payload = {
    "account": "42trU9A5...",
    "signature": "5j1Vy9Uq...",
    "timestamp": 1716200000000,
    "symbol": "BTC",
    "order_id": 13753364
}

response = requests.post(
    "/api/v1/orders/twap/cancel",
    json=payload,
    headers={"Content-Type": "application/json"}
)

data = response.json()