POST Flatten Everything

NT8

Flatten all NT8 positions and orders NT8

Closes positions in all or one account that meet all of the specified criteria: account, instrument, market position.

Endpoint

POST /v1/api/positions/flatten

Headers

Name	Value
Content-Type	application/json
Authorization	Bearer <token>

Body parameters

Name	Type	Required	Description
account	string	Optional	Name of the account
instrument	string	Optional	Name of underlying instrument
marketPosition	string	Optional	"long" or "short"
cancelOrders	bool	Optional	For a filtered flatten, run an explicit working-order cancellation pass after flattening.

Code examples

Python

import requests

url = "https://app.crosstrade.io/v1/api/positions/flatten"
headers = {
    "Authorization": "Bearer my-secret-token",
    "Content-Type": "application/json"
}
data = {
    "account": "Sim101",
    "instrument": "MES 12-25",
    "marketPosition": "short"
}

try:
    response = requests.post(url, headers=headers, json=data)
    print(f"Response Code: {response.status_code}, Response Text: {response.text}")
except Exception as e:
    print(f"An error occurred: {e}")

JavaScript

const url = "https://app.crosstrade.io/v1/api/positions/flatten";
const data = {
  account: "Sim101",
  instrument: "MES 12-25",
  marketPosition: "short"
};

fetch(url, {
  method: "POST",
  headers: {
    "Authorization": "Bearer my-secret-token",
    "Content-Type": "application/json"
  },
  body: JSON.stringify(data)
})
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

cURL

curl -X POST "https://app.crosstrade.io/v1/api/positions/flatten" \
  -H "Authorization: Bearer my-secret-token" \
  -H "Content-Type: application/json" \
  -d '{
    "account": "Sim101",
    "instrument": "MES 12-25",
    "marketPosition": "short"
  }'

Response

200

{
    "orderIds": [
        "adb3868865de4b59b0e147b8300e4a29",
        "2141df9fc0254ba9b34c8a5e38722249",
        "16f6774e302748ce962f2d60b58b2eb1"
    ],
    "closedPositions": [
        {
            "type": "NinjaTrader.Cbi.Position",
            "account": "Sim101",
            "instrument": "ES 12-25",
            "instrumentType": "Future",
            "marketPosition": "Short",
            "quantity": 2,
            "averagePrice": 5780.125,
            "marketPrice": 5774.0,
            "unrealizedProfitLoss": 612.5
        }
    ],
    "success": true
}

400

{
  "error": "Invalid request"
}

Platform nuances

WARNING: An empty JSON payload (i.e., no filters applied) to this endpoint will close all positions and all orders across all accounts.

When using any filter, the request runs the filtered Flatten operation. Set cancelOrders: true when broker-held working stops or targets must be explicitly cancelled after the position closes.

warning

When providing filters (account, instrument, marketPosition), use "api": "Flatten". Use "api": "FlattenEverything" only for a complete flatten with no filters.

The REST endpoint (/v1/api/positions/flatten) handles this implicitly. The WebSocket function must be called explicitly.

WebSocket API

This request can also be made over the WebSocket API.

Flatten everything (no filters)

{
  "action": "rpc",
  "id": "my-request-id",
  "api": "FlattenEverything",
  "args": {}
}

Flatten with filters

{
  "action": "rpc",
  "id": "my-request-id",
  "api": "Flatten",
  "args": {
    "account": "Sim101",
    "instrument": "MES 12-25",
    "marketPosition": "short"
  }
}

Tradovate

Flatten all positions and orders Tradovate

Liquidates open positions and cancels working orders across linked Tradovate identities. An optional account body field scopes the operation to one linked account; without it, the command affects all linked accounts. The request executes server-side through the shared webhook parser and dispatcher, including field validation, Account Manager locks, and Trade Copier fan-out.

Endpoint

POST /v1/api/tv/positions/flatten

Headers

Name	Value
Content-Type	application/json
Authorization	Bearer <token>

Body parameters

Name	Type	Required	Description
account	string	Optional	Tradovate account name to flatten; omit to flatten all linked Tradovate accounts

Send an empty JSON object to flatten all linked accounts.

Code examples

Python

import requests

token = 'my-secret-token'

url = "https://app.crosstrade.io/v1/api/tv/positions/flatten"
headers = {
    "Authorization": f"Bearer {token}",
    "Content-Type": "application/json"
}
data = {}

try:
    response = requests.post(url, headers=headers, json=data)
    print(f"Response Code: {response.status_code}, Response Text: {response.text}")
except Exception as e:
    print(f"An error occurred: {e}")

JavaScript

const token = 'my-secret-token';

const url = "https://app.crosstrade.io/v1/api/tv/positions/flatten";

fetch(url, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${token}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({})
})
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

cURL

TOKEN="my-secret-token"

curl -X POST "https://app.crosstrade.io/v1/api/tv/positions/flatten" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{}'

Response

This abbreviated response envelope identifies the operation. The full response also includes dispatcher context and the flatten results inside response.

{
  "success": true,
  "api": "flatten_everything",
  "response": {}
}

Platform nuances

• Without account, this command affects all linked Tradovate identities.
• Supplying account scopes the command to that linked Tradovate account.
• For a filtered flatten, use POST /v1/api/tv/accounts/{account}/positions/flatten.
• The operation does not require the NinjaTrader add-on to be connected.
• Account Manager and Trade Copier behavior is applied by the shared dispatcher.

See the Tradovate API overview for the full field grammar, mutation safety guarantees, and error table.