sync fees from API. usdc. trade works

config.yaml

@@ -2,8 +2,9 @@
 
 # Trading Symbols (extendable/configurable)
 symbols:
-  - "ETH/USDT"
+  - "ETH/USDC"  # MEXC supports ETHUSDC for API trading
   - "BTC/USDT"
+  - "MX/USDT"
 
 # Timeframes for ultra-fast scalping (500x leverage)
 timeframes:  
@@ -126,8 +127,13 @@ trading:
   max_position_size: 0.05    # Maximum position size (5% of balance)
   stop_loss: 0.02           # 2% stop loss
   take_profit: 0.05         # 5% take profit
-  trading_fee: 0.0002       # 0.02% trading fee
-  min_trade_interval: 30    # Minimum seconds between trades (faster)
+  trading_fee: 0.0005       # 0.05% trading fee (MEXC taker fee)
+  
+  # MEXC Fee Structure (asymmetrical)
+  trading_fees:
+    maker: 0.0000          # 0.00% maker fee (adds liquidity)
+    taker: 0.0005          # 0.05% taker fee (takes liquidity)
+    default: 0.0005        # Default fallback fee
   
   # Risk management
   max_daily_trades: 20      # Maximum trades per day
@@ -159,7 +165,7 @@ mexc_trading:
   min_trade_interval_seconds: 30  # Minimum between trades
   
   # Order configuration
-  order_type: "market"           # Use market orders for immediate execution
+  order_type: "limit"            # Use limit orders (MEXC ETHUSDC requires LIMIT orders)
   timeout_seconds: 30            # Order timeout
   retry_attempts: 0              # Number of retry attempts for failed orders
   
@@ -169,8 +175,9 @@ mexc_trading:
   
   # Supported symbols for live trading
   allowed_symbols:
-    - "ETH/USDT"
+    - "ETH/USDC"  # MEXC supports ETHUSDC for API trading
     - "BTC/USDT"
+    - "MX/USDT"
   
   # Trading hours (UTC)
   trading_hours: