thatChat is a modular, self-hosted AI chat platform for websites and e-commerce. One chat widget captures leads, handles customer support, answers FAQs, takes bookings and helps sell products in your e-shop. It runs on your own hosting (standard PHP hosting, Docker, WordPress or PrestaShop) with your own AI API keys, so conversations and customer data stay in your own database. Use OpenAI, Anthropic Claude, Google Gemini, Groq, Mistral, DeepSeek or any OpenAI-compatible endpoint, with automatic fallback when a provider fails. Key features: - AI assistant trained on your knowledge base, replies in the visitor's language - Smooth handoff from AI to a human operator - Lead capture, bookings and product cards for e-shops - Operator mobile app for iOS and Android - Admin in 11 languages