Open-source React components and runtimes for building AI chat
Stage
Not given
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Founded
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Based in
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US
Pricing model
Freemium
Open source
Pricing
Free plan available. Paid plans range from standard pricing up to $499/month for the Agency plan. Enterprise plan available with custom pricing upon request.
The core library is free and MIT licensed. assistant-cloud offers: Free ($0, 200 MAU included), Pro ($50/mo, 500 MAU included plus $0.10 per additional MAU), Enterprise (custom MAU pricing, contact for details).
Key features
Import content from webpages with automatic change detection
Upload multiple file formats including PDFs, CSV, RichText, Markdown, and audio
Connect Notion workspaces to sync your knowledge base
Embed lightweight brandable chat widget on your website
Slack integration with slash commands
Push responses to your API
Capture leads with email and phone collection
Book appointments directly through the chatbot
Route to live chat when needed
Download collected visitor information and conversation insights
Streaming support for real-time chat output
Tool execution and integration
Thread persistence and history
Voice support
Generative UI rendering
Message attachments
Conversation branching
Multi-platform support (React, Vue, React Native, Ink)
Runtime adapter support (AI SDK, LangGraph, LangChain)
Fully customizable component composition
What makes it different
Built with the same technology as ChatGPT
Faster and more accurate responses than traditional live chat
No coding required to build and customize
Simulates human conversation with a personal touch
Works with any backend through pluggable runtime adapters
Complete source code available for customization via CLI
Production-ready runtime handling streaming, tools, and state
Free MIT license with optional paid cloud persistence
Chatterdocs
assistant-ui