"""
Configuration management for Alpaca MCP server.
Follows gold standard patterns for environment-based configuration.
"""
from typing import Optional
from pydantic import Field
from pydantic_settings import BaseSettings
from dotenv import load_dotenv
# Load environment variables from .env file
load_dotenv()
class AlpacaSettings(BaseSettings):
"""Alpaca API configuration settings."""
# Required Alpaca credentials
api_key: str = Field(description="Alpaca API key")
secret_key: str = Field(description="Alpaca secret key")
paper_trade: bool = Field(default=True)
# Optional Alpaca API URLs
trade_api_url: Optional[str] = Field(default=None)
trade_api_wss: Optional[str] = Field(default=None)
data_api_url: Optional[str] = Field(default=None)
stream_data_wss: Optional[str] = Field(default=None)
model_config = {"env_file": ".env"}
class MCPSettings(BaseSettings):
"""MCP server configuration settings."""
server_name: str = Field(default="alpaca-trading-gold")
version: str = "1.0.0"
log_level: str = Field(default="INFO")
model_config = {"env_file": ".env"}
class Settings:
"""Combined application settings."""
def __init__(self) -> None:
# Initialize sub-settings with required values from env
import os
from dotenv import load_dotenv
load_dotenv()
self.alpaca = AlpacaSettings(
api_key=os.getenv("ALPACA_API_KEY", ""),
secret_key=os.getenv("ALPACA_SECRET_KEY", ""),
)
self.mcp = MCPSettings()
# Expose commonly used settings at the top level
@property
def server_name(self) -> str:
return self.mcp.server_name
@property
def log_level(self) -> str:
return self.mcp.log_level
@property
def alpaca_api_key(self) -> str:
return self.alpaca.api_key
@property
def alpaca_secret_key(self) -> str:
return self.alpaca.secret_key
@property
def alpaca_paper_trade(self) -> bool:
return self.alpaca.paper_trade
# Global settings instance
settings = Settings()
# Validate that required credentials are available
if not settings.alpaca_api_key or not settings.alpaca_secret_key:
raise ValueError(
"Alpaca API credentials not found in environment variables. "
"Please set ALPACA_API_KEY and ALPACA_SECRET_KEY."
)
