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ChatJS is a production-ready AI chat foundation for developers who want to launch customizable chat applications without rebuilding common infrastructure from scratch. The project presents itself as a starting point that already includes authentication, model access, streaming, and tool support so teams can focus on their own product-specific features. Its stack is centered on modern TypeScript web development, using technologies such as Next.js, AI SDK tooling, PostgreSQL, Redis, and type-safe configuration patterns. The repository highlights access to more than 120 models through a unified interface, covering providers such as Claude, GPT, Gemini, and Grok. It also supports practical product features like attachments, resumable streams, branching conversations, sharing, web search, image generation, code execution, and MCP support.
Features
- Access to 120+ AI models through one API layer
- Built-in authentication options including GitHub, Google, and anonymous access
- Support for attachments such as images, PDFs, and documents
- Resumable streaming and branching conversations
- Web search, image generation, and sandboxed code execution
- CLI scaffolding for creating and configuring new ChatJS apps
Project Samples
