"""
ZTA Paradigm based MCP Server Authentication Setup
1. OAuth2
Set environment variable
OAUTH2_SECRET_KEY.Send token in
Authorization: Bearer <token>header.
2. Certificate-based Auth
Send client certificate via
X-Client-Certheader (for mock testing).For production, integrate with mTLS.
3. API Key Auth
Set env
VALID_API_KEYS(comma-separated keys).Send
X-API-Key: <your_key>in the header. """