SARA
A self-hostable WhatsApp AI agent framework with 13 built-in industry-specific 'brains' -- restaurants, clinics, salons, gyms and more -- covering function calling, RAG and multiple languages.
SARA ships 13 industry verticals in the repository, out of 20 defined in an open schema, each with its own knowledge base, tools, prompts and fallback behavior; a developer can add a new vertical instead of building the underlying architecture from scratch.
Its engine chains multiple LLM providers (Groq, Cerebras, SambaNova, Mistral) with automatic failover, retrieves over PostgreSQL and pgvector with a BM25 keyword fallback, calls 87 tool definitions across the verticals, anonymizes personal information before external LLM calls, and screens for prompt injection and hallucination.
On WhatsApp it handles voice messages through speech-to-text, image understanding, PDF and document processing, and includes rate limiting and anti-ban protection. It is written in TypeScript.