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API Reference
V1
Positions

Cancel Position Instruction

DELETE/v1/accounts/{account_id}/positions/instructions/{instruction_id}

Cancel an outstanding position instruction by its server-assigned id. Returns the updated instruction with status CANCEL_REQUESTED. The terminal CANCELLED or CANCEL_FAILED state arrives asynchronously and is observable via subsequent GETs.

Path ParametersExpand Collapse
account_id: number
instruction_id: string
ReturnsExpand Collapse
data: PositionInstruction { id, account_id, instruction_id, 9 more }

A position instruction and its current lifecycle state.

id: string

Server-assigned id. Used as the path parameter on cancel.

formatuuid
account_id: number

Account the instruction belongs to.

formatint64
instruction_id: string

Caller-supplied idempotency key echoed from the submit request; the server-assigned fallback when none was supplied.

instruction_type: PositionInstructionType

The action this instruction requests.

One of the following:
"EXERCISE"
"DO_NOT_EXERCISE"
"CONTRARY_EXERCISE"
instrument_id: string

Identifier of the options contract this instruction acts on.

formatuuid
quantity: string

Number of contracts included in the instruction.

Current lifecycle status.

One of the following:
"SENT"
"ACCEPTED"
"REJECTED"
"ENGINE_REJECTED"
"CANCEL_REQUESTED"
"CANCELLED"
"CANCEL_FAILED"
"UNKNOWN"
symbol: string

Options symbol (OSI) for display.

accepted_quantity: optional string

Number of contracts accepted by the clearing venue. Populated once the instruction reaches ACCEPTED.

created_at: optional string

When the instruction was first accepted by the service.

formatdate-time
rejection_reason: optional string

Human-readable explanation populated on any non-success terminal status — REJECTED, ENGINE_REJECTED, or CANCEL_FAILED. On a 207 Multi-Status batch submit the top-level error field summarizes the batch; per-row detail continues to live here.

updated_at: optional string

When the instruction’s lifecycle state last changed.

formatdate-time

Cancel Position Instruction

curl https://api.clearstreet.com/v1/accounts/$ACCOUNT_ID/positions/instructions/$INSTRUCTION_ID \
    -X DELETE \
    -H "Authorization: Bearer $API_KEY"
{
  "metadata": {
    "request_id": "request_id",
    "next_page_token": "U3RhaW5sZXNzIHJvY2tz",
    "page_number": 0,
    "previous_page_token": "U3RhaW5sZXNzIHJvY2tz",
    "total_items": 0,
    "total_pages": 0
  },
  "error": {
    "code": 400,
    "message": "Order quantity must be greater than zero",
    "details": [
      {
        "foo": "bar"
      }
    ]
  },
  "data": {
    "id": "0195f6d0-a1b2-7c3d-8e4f-5a6b7c8d9e02",
    "account_id": 122503,
    "instruction_id": "ui-20260424-001",
    "instruction_type": "EXERCISE",
    "instrument_id": "0195f6d0-a1b2-7c3d-8e4f-5a6b7c8d9e02",
    "quantity": "1",
    "status": "SENT",
    "symbol": "AAPL  280121C00195000",
    "accepted_quantity": null,
    "created_at": "2026-04-24T14:30:00Z",
    "rejection_reason": null,
    "updated_at": "2026-04-24T14:30:00Z"
  }
}
Returns Examples
{
  "metadata": {
    "request_id": "request_id",
    "next_page_token": "U3RhaW5sZXNzIHJvY2tz",
    "page_number": 0,
    "previous_page_token": "U3RhaW5sZXNzIHJvY2tz",
    "total_items": 0,
    "total_pages": 0
  },
  "error": {
    "code": 400,
    "message": "Order quantity must be greater than zero",
    "details": [
      {
        "foo": "bar"
      }
    ]
  },
  "data": {
    "id": "0195f6d0-a1b2-7c3d-8e4f-5a6b7c8d9e02",
    "account_id": 122503,
    "instruction_id": "ui-20260424-001",
    "instruction_type": "EXERCISE",
    "instrument_id": "0195f6d0-a1b2-7c3d-8e4f-5a6b7c8d9e02",
    "quantity": "1",
    "status": "SENT",
    "symbol": "AAPL  280121C00195000",
    "accepted_quantity": null,
    "created_at": "2026-04-24T14:30:00Z",
    "rejection_reason": null,
    "updated_at": "2026-04-24T14:30:00Z"
  }
}