{"message":"🚀 Azure AI Multi-Agent API (FastAPI)","status":"running","version":"1.0.0","powered_by":"Mastercard Digital Labs","available_agents":["travel"],"endpoints":{"POST /v1/ai_assist/":"Multi-agent AI assistance","POST /v1/travel/":"Travel assistance","POST /v1/session/create":"Create a new session","GET /v1/session/{session_id}":"Get session details","DELETE /v1/session/{session_id}":"Delete a session","POST /v1/link_card/":"Link a payment card to user account","GET /v1/linked_cards/":"Get all linked payment cards (requires session_id or user_id)","GET /health":"Health check endpoint","GET /":"Server status"}}