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.
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