Close position

Deprecated

POST/futures/cross/position/closePrivate

Deprecated: /futures is being replaced by the /perp API; this route has no /perp equivalent yet. Close the running cross margin position with a market order opposite to it. Returns that order.

Permissions: futures:cross:write

Response Body

application/json

response

id*string

Internal order ID

Match

^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$

Formatuuid

type*"limit"

Order type: limit or market

Value in"limit"

side*string

Order side: b (buy) or s (sell)

Value in"buy""sell"

quantity*number

Number of contracts in the order

price*number

Bitcoin price when the order was filled (in USD)

tradingFee*integer

Trading fee

createdAt*string

Timestamp when the order was created

Formatdate-time

filledAt*null

Timestamp when filled (null while order is open)

canceledAt*null

Timestamp when the order was canceled (null if not canceled)

open*boolean

Whether the order is open (not yet filled)

filled*boolean

Whether the order was filled

canceled*boolean

Whether the order was canceled

clientId*|

Optional custom data field (max 64 characters)

import { createHttpClient } from '@ln-markets/sdk/rest/v3'

const client = createHttpClient({
  key: 'your-key',
  secret: 'your-secret',
  passphrase: 'your-passphrase',
})

const result = await client.futures.cross.close()

{
  "id": "d0b9f9a0-4f6e-4a5a-8b7a-7f0f5f9a8a1e",
  "type": "limit",
  "side": "buy",
  "quantity": 100,
  "price": 20000,
  "tradingFee": 10,
  "createdAt": "2025-09-01T15:04:21.129Z",
  "filledAt": null,
  "canceledAt": null,
  "open": true,
  "filled": false,
  "canceled": false,
  "clientId": "test-client-id-123"
}

Response BodyCopy Anchor Link

Response Body