Architecture Overview¶

System Architecture¶

The Binance MCP Server is built on a modular architecture that separates concerns and ensures maintainability, security, and performance.

Core Components¶

graph TB
    A[MCP Client] --> B[FastMCP Server]
    B --> C[Tool Router]
    C --> D[Market Data Tools]
    C --> E[Account Tools]
    C --> F[Trading Tools]
    C --> G[History Tools]

    D --> H[Binance API Client]
    E --> H
    F --> H
    G --> H

    H --> I[Rate Limiter]
    H --> J[Configuration Manager]
    H --> K[Error Handler]

    I --> L[Binance Exchange API]
    J --> L
    K --> L

Architecture Layers¶

1. MCP Protocol Layer¶

FastMCP Server: Handles MCP protocol communication
Transport: STDIO, HTTP, and SSE transport support
Tool Registration: Automatic tool discovery and registration

2. Application Layer¶

Tool Modules: 17 specialized tools for different operations
Response Formatting: Standardized success/error responses
Input Validation: Parameter validation and sanitization

3. Service Layer¶

Binance Client Manager: Centralized API client management
Rate Limiting: Intelligent rate limiting to respect API limits
Configuration Management: Environment-based configuration

4. Infrastructure Layer¶

Error Handling: Comprehensive error handling and logging
Security: API key management and secure client initialization
Monitoring: Request logging and performance tracking

Tool Categories¶

Market Data Tools¶

Tools for accessing real-time and historical market information: - get_ticker_price: Current asset prices - get_ticker: 24-hour price statistics - get_order_book: Market depth and order book data - get_available_assets: Exchange trading pairs information

Account Management Tools¶

Tools for managing account information and balances: - get_balance: Account balances across all assets - get_account_snapshot: Point-in-time account state - get_position_info: Futures position information - get_pnl: Profit and loss calculations

Trading Tools¶

Tools for order management and trading operations: - create_order: Place new trading orders - get_orders: Retrieve order history and status

Transaction History Tools¶

Tools for tracking deposits, withdrawals, and transfers: - get_deposit_history: Deposit transaction history - get_withdraw_history: Withdrawal transaction history - get_deposit_address: Get deposit addresses for assets - get_liquidation_history: Liquidation event history - get_universal_transfer_history: Cross-account transfers

Fee Information Tools¶

Tools for accessing trading fee information: - get_fee_info: Trading fee rates and calculations

Data Flow¶

Request Flow¶

MCP Client sends tool request via STDIO/HTTP
FastMCP Server receives and validates the request
Tool Router dispatches to appropriate tool module
Tool Module validates parameters and calls Binance API
Response flows back through the same path with standardized format

Error Handling Flow¶

Error Detection at any layer (validation, API, network)
Error Classification into categories (validation, API, rate limit, etc.)
Error Response creation with standardized format
Logging for debugging and monitoring
Client Response with actionable error information

Security Architecture¶

API Key Management¶

Environment variable-based configuration
No hardcoded credentials in source code
Support for testnet and production environments

Rate Limiting¶

Intelligent rate limiting based on Binance API limits
Request queuing and throttling
Error responses when limits are exceeded

Input Validation¶

Parameter type checking and validation
Symbol format normalization
Order side and type validation
Quantity and price validation

Performance Considerations¶

Caching Strategy¶

No caching implemented (real-time data priority)
Each request fetches fresh data from Binance API
Consider implementing caching for non-critical data

Connection Management¶

Persistent client connections when possible
Connection health checking via ping
Automatic retry mechanisms for failed requests

Resource Usage¶

Minimal memory footprint
Efficient JSON parsing and serialization
Logging level configuration for performance tuning

Configuration Management¶

Environment Variables¶

BINANCE_API_KEY=your_api_key        # Required: Binance API key
BINANCE_API_SECRET=your_secret      # Required: Binance API secret  
BINANCE_TESTNET=true               # Optional: Use testnet (default: false)

Runtime Configuration¶

Dynamic client initialization
Environment-based URL selection
Configurable logging levels
Transport method selection

Extensibility¶

Adding New Tools¶

Create tool module in binance_mcp_server/tools/
Implement tool function with proper error handling
Add tool registration in server.py
Add tests in tests/test_tools/
Update documentation

Tool Development Guidelines¶

Use @rate_limited decorator for API calls
Follow standardized response format
Implement comprehensive error handling
Add detailed docstrings and type hints
Include usage examples in documentation

This architecture ensures scalability, maintainability, and robust operation while providing a clean interface for AI agents to interact with Binance's cryptocurrency exchange.