MEXC API Bypass

Client for interacting with MEXC Futures API with automatic signature generation for authentication. Requires a 'WEB' format access token that can be obtained from a browser session after authorization on the MEXC platform.

Disclaimer

This project is for educational purposes only. The author is not responsible for any financial losses or other consequences resulting from the use of this code. Cryptocurrency trading involves high risks. Before using, make sure you fully understand the API mechanics and trading risks. All actions are performed at your own risk.

Prerequisites

To work with this project, you need:

• Python 3.7 or higher: Install from the official website.

Installation

git clone https://github.com/hostnes/MexcApiBypass.git
cd MexcApiBypass

python3 -m venv venv
source venv/bin/activate  # Linux/macOS
# venv\Scripts\activate   # Windows

pip install -r requirements.txt

Obtaining the 'WEB' Token

To use the client, you need a 'WEB' format access token extracted from the MEXC browser session. Instructions:

1. Log in to the MEXC website in your browser.
2. Open the developer console (F12 or through the browser menu).
3. In the "Application" tab (Chrome) or "Storage" tab (Firefox), find the "Cookies" section.
4. Select the MEXC domain from the list.
5. Find the entry named "u_id" and copy its value.
6. Use the obtained value (starts with "WEB") as the api_key parameter when initializing the client.

Quick Start

from mexc_client import MexcClient

client = MexcClient(api_key='WEB...')

contract = client.get_contract_detail("BTC_USDT")
result = client.place_order(symbol="BTC_USDT", side=1, vol=170, price=2.5, leverage=20)
positions = client.get_open_positions()

API Methods

get_contract_detail(symbol)

GET /api/v1/contract/detail

Get contract details.

Parameters:

• symbol (str) — trading pair

Example request:

{
  "symbol": "BTC_USDT"
}

Example response:

{
  "success": true,
  "contract_size": 0.0001,
  "max_leverage": 500,
  "max_volume": 400000,
  "min_volume": 1,
  "vol_scale": 0,
  "vol_unit": 1,
  "data": {
    "symbol": "BTC_USDT",
    "displayName": "BTC_USDT永续",
    "baseCoin": "BTC",
    "quoteCoin": "USDT",
    "contractSize": 0.0001,
    "minLeverage": 1,
    "maxLeverage": 500,
    "minVol": 1,
    "maxVol": 400000,
    "takerFeeRate": 0.0004,
    "makerFeeRate": 0.0001
  }
}

---

get_open_positions()

GET /api/v1/private/position/open_positions

Get list of all open positions.

Parameters: none

Example request:

{}

Example response:

{
  "success": true,
  "data": [
    {
      "positionId": 1109973831,
      "symbol": "BTC_USDT",
      "positionType": 1,
      "openType": 1,
      "state": 1,
      "holdVol": 5,
      "frozenVol": 0,
      "closeVol": 0,
      "holdAvgPrice": 109777.5,
      "holdAvgPriceFullyScale": "109777.5",
      "openAvgPrice": 109777.5,
      "openAvgPriceFullyScale": "109777.5",
      "closeAvgPrice": 0,
      "liquidatePrice": 55020.5,
      "oim": 27.444375,
      "im": 27.444375,
      "holdFee": 0,
      "realised": 0,
      "leverage": 2,
      "marginRatio": 0.0027,
      "createTime": 1761887133854,
      "updateTime": 1761887133854
    }
  ]
}

---

place_order(symbol, side, vol, price, open_type=1, order_type="1", leverage=20, price_protect="0")

POST /api/v1/private/order/create

Place a limit order.

Parameters:

• symbol (str) — trading pair
• side (int) — order direction
• vol (float) — volume
• price (float) — price
• open_type (int) — margin type, default 1
• order_type (str) — order type, default "1"
• leverage (int) — leverage, default 20
• price_protect (str) — price protection, default "0"

Example request:

{
  "symbol": "BTC_USDT",
  "side": 1,
  "vol": 170,
  "price": 2.5,
  "open_type": 1,
  "order_type": "1",
  "leverage": 20,
  "price_protect": "0"
}

Example response:

{
  "success": true,
  "code": 0,
  "data": {
    "orderId": "739113577038255616",
    "ts": 1761888808839
  }
}

---

open_market_position(symbol, side, open_type, volume, leverage, stop_loss_price=None, take_profit_price=None)

POST /api/v1/private/order/submit

Open a market position with optional stop-loss and take-profit.

Parameters:

• symbol (str) — trading pair
• side (int) — position direction
• open_type (int) — margin type
• volume (str) — position volume in contracts
• leverage (int) — leverage
• stop_loss_price (str, optional) — stop-loss price
• take_profit_price (str, optional) — take-profit price

Example request:

{
  "symbol": "ARB_USDT",
  "side": 1,
  "open_type": 2,
  "volume": "10",
  "leverage": 5,
  "stop_loss_price": "25000",
  "take_profit_price": "35000"
}

Example response:

{
  "success": true,
  "data": {
    "orderId": "739113577038255616",
    "ts": 1761888808839
  }
}

Examples

from mexc_client import MexcClient

client = MexcClient(api_key='WEB...')

# Get contract information
contract = client.get_contract_detail("BTC_USDT")
if contract["success"]:
    print(f"Max leverage: {contract['max_leverage']}")
    print(f"Min volume: {contract['min_volume']}")

# Place a limit order
result = client.place_order(
    symbol="BTC_USDT",
    side=1,
    vol=170,
    price=2.5,
    leverage=20
)
if result["success"]:
    print(f"Order ID: {result['data']['orderId']}")

# Get all positions
positions = client.get_open_positions()
if positions["success"]:
    for pos in positions["data"]:
        print(f"{pos['symbol']}: {pos['holdVol']} @ {pos['holdAvgPrice']}")

Project Support

If this project has been useful to you, we would appreciate a star on GitHub. This helps the project grow and become more visible. We also welcome any ideas, feedback, and suggestions for improving functionality through Issues or Pull Requests.

Additional Information

All presented methods are examples of basic functionality. You can extend the code and add your own methods to work with other MEXC Futures API endpoints. Full API documentation is available at: https://www.mexc.com/api-docs/futures/integration-guide