Ethereum and Binance API Issues: A Solution for Creating Limit Orders

As a cryptocurrency enthusiast and developer, you are not alone in facing the frustration of encountering the LOT_SIZE error when creating limit orders on the Binance API. In this article, we will delve into the reasons behind this issue and provide a solution to resolve it.

The Problem: LOT_SIZE Error

The LOT_SIZE (1013) error is an internal error that occurs during the execution of a limit order on the Binance API. The exact cause of this error can be difficult to determine, but common culprits include:

  • Incorrect or missing required parameters
  • Inadequate or missing market data
  • Insufficient balance in your account

The Problem: Minimum Amount

One possible reason for the LOT_SIZE error is an issue with the minimum amount parameter. When setting the minimum amount of a limit order, you may be exceeding the available margin in your account.

To solve this problem, let’s look at some Python code examples and explore possible solutions.

Sample Code: Creating Limit Orders with Binance API

import requests








Ethereum: python Binance: APIError(code=-1013): Filter failure: LOT_SIZE

Replace with your Binance API credentials and endpoint URL

api_url = "


Define query parameters for creating limit orders

query_params = {

"symbol": "ETHUSD",

Specify the asset pair

"side": "limit",

Specify whether it is a buy or sell order

"type": "order",

Order type (in this case, limit)

"direction": "buy",

Direction of the trade (buy/sell)

"quantity": 0.1,

Order amount (in decimal format, e.g. 100)

"timeInForce": "good Till Cancelled"

Time in force for the order

}


Configure Authentication and headers

headers = {

"Content-Type": "application/json",

"X-MBX-APIKEY": "YOUR_API_KEY"

}


Execute the query

response = requests.post(api_url, json=query_params, headers=headers)


Check if the response contains any error messages

if "error" in response.json():

print("Error:", response.json()["error"]["message"])

else:


Handle the successful API response

order_id = response.json()["data"]["orderID"]

print(f"Limit order created: {order_id}")

Resolving the LOT_SIZE error

Looking at your code, you can see that setting the min_quantity parameter to 0.1 is probably incorrect. causing the error. You can try increasing this value to ensure sufficient margin in your account.

Also, make sure that:

  • Your account balance has sufficient funds for the transaction.
  • The lotSize API call (in this case, LOT_SIZE) returns a successful response with no errors.

Additional Tips and Troubleshooting

To troubleshoot the issue, consider checking the following:

  • Verify that your Binance API credentials are correct and up to date.
  • Make sure you are using the correct API endpoint URL for limit order creation (
  • Check the response JSON for any other errors or warnings.

If none of these steps resolve the issue, please provide more details about your setup and environment, including your Binance API credentials, account information, and code snippets. We’d be happy to help!