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Open Chat Widget is a ChatGPT-like AI chat widget for your website. You build your own custom agent, the widget handles the UX and plumbing. Use it to build customer service agents (free Intercom Fin alternative), knowledge base / documentation search, onboarding assistants, and more. If you’re looking to build great AI chat experiences for your users, this is it.

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Why Open Chat Widget

  • Plug and play - A single component you drop in to your website. You get access to feature rich AI chat with text streaming, web search, tool use, etc. out of the box. Set up is a few lines of code.
  • Build any AI agent — Build custom agents with Vercel AI SDK. Use any LLM model and create custom workflows. Works directly with existing AI-SDK endpoints.
  • Framework-agnostic — Plugs in to any web framework or website platform: React, Next.js, Vue, WordPress, Shopify, Wix.
  • Support for MCP - Compatible with MCP servers. Connect to MCP servers and use its tools. Support for MCP apps (MCP-UI) coming soon.
  • Open source — MIT licensed. Free forever. You own your data and infrastructure.
Open Chat Widget product demo

Install widget

Go to the installation guide.