Tavily Web Search MCP Server

# utils/anthropic_client.py """ Cached Anthropic API client. Uses functools.lru_cache to ensure we only create one client instance per process, avoiding unnecessary initialization overhead. """ import os from anthropic import Anthropic from functools import lru_cache @lru_cache(maxsize=1) def get_anthropic_client() -> Anthropic: """ Return a cached Anthropic client using API key from environment. The client is initialized once and reused across all calls. Fails fast if the API key is missing with a clear error message. Returns: Anthropic: Configured Anthropic client instance Raises: EnvironmentError: If ANTHROPIC_API_KEY is not set """ api_key = os.getenv("ANTHROPIC_API_KEY") if not api_key: raise EnvironmentError( "Missing Anthropic API key. Please set ANTHROPIC_API_KEY in your .env file." ) return Anthropic(api_key=api_key)