SARA

SARA is a self-hosted WhatsApp AI agent that understands your industry. Pick a vertical — restaurant, clinic, real estate, salon — and get a domain-specific AI agent with real function calling tools (book tables, check allergens, schedule appointments). Not a chatbot wrapper. Stack: TypeScript, Groq/Cerebras/Mistral (free LLM APIs), pgvector RAG, Docker Compose. What you'd pay $300-500/mo for with ManyChat or Intercom, SARA does for $5/mo on a VPS. AGPL-3.0, fully open source.