A production-grade, end-to-end agentic AI platform — chat UI, self-hosted LLM, MCP server, LLM observability, medallion data architecture, security guardrails, HA, and cost analysis. Same stack ClickHouse uses internally (DWAINE: 250+ employees, ~70% of internal analytics use cases covered, 50-70% workload reduction on the data-warehouse team). Adapted for a crypto-derivatives exchange. Why I'm writing this The phrase "AI platform" gets thrown around to describe everything from a single chatbot to a set of disconnected APIs. An actual production AI platform requires far more than a model and an interface — it needs data plumbing, semantic grounding, query safety, observability, role-based access, high availability, and a real cost model. This is the architecture I shipped for a crypto exchange — covering all of those layers. Every component is open-source and battle-tested.…