Crypto Trading MCP

import time from dataclasses import dataclass, field @dataclass class CryptoAPIException(Exception): code: str message: str timestamp: int = field(default_factory=lambda: int(time.time() * 1000)) success: bool = False @dataclass class AuthenticationException(CryptoAPIException): pass @dataclass class BadRequestException(CryptoAPIException): pass @dataclass class NotFoundException(CryptoAPIException): pass @dataclass class RateLimitException(CryptoAPIException): pass @dataclass class InternalServerErrorException(CryptoAPIException): pass