Agnos is an OpenAI-compatible control plane that wraps the LLM gateway you already run. Keys stay in your encrypted vault (the gateway gets one per request and stores none); you get budgets, guardrails, routing, cost attribution and audit, and you can swap or combine gateways (litellm, bifrost, portkey etc) with a config change. MIT, self-hosted. Live demo, https://agnos-llm-gateway.site https://github.com/siva010928/ag...