OpenRouter Reference Architecture Overview OpenRouter serves as a unified LLM gateway, abstracting provider complexity. A production architecture wraps it with caching, rate limiting, cost controls, observability, and async processing. This skill provides three reference architectures: simple (single service), standard (microservice), and enterprise (event-driven). Architecture 1: Simple (Single Service) Architecture 2: Standard (Microservice) Architecture 3: Enterprise (Event-Driven) Choosing an Architecture | Factor | Simple | Standard | Enterprise | |--------|--------|----------|----------…