FastAPI AI Kit: Ship your AI backend this weekend, not next quarter

Hey Product Hunt! Every AI project I started began the same way: days lost wiring up auth, LLM provider switching, streaming, a RAG pipeline, billing, and deployment, before writing a single line of the actual product. So I built FastAPI AI Kit: a production-ready FastAPI boilerplate with all of that already wired together: JWT auth, a unified LLM abstraction layer (OpenAI, Anthropic, local models), SSE streaming with token tracking, RAG with pgvector or Qdrant, Stripe-compatible billing hooks, background jobs, and one-command deploys to Railway, Render, or Fly.io. It is full source code, no obfuscation, one-time payment of $69 with lifetime updates, so you can go from zero to a deployed AI backend in about 10 minutes instead of 60+ hours. Would love your feedback, happy to answer anything about the stack or architecture choices!