Cedar-OS is a open-source framework for building AI-native react apps. Basically, it helps your app go from vscode to cursor. Cedar-OS is trusted by indie developers & 5+ YC companies, and comes from months of implementing AI copilots in production applications. We believe the future of AI isn’t just a chatbot on the side, but something that’s aware of what’s going on inside the app, can directly change local state, and working tightly with the user and software to provide value. For the first time in history, products can come to life. We want to help you build something with life.

​
Core Features

Streaming & Tool Calls

Render real-time message streaming and agent tool execution

Voice Integration

Voice-powered agent interactions

State Access

Let agents read and write application state

Diff & History

Track what AI changes, allow user approvals, and manage history

Chat

Floating, SidePanel, Caption, or Embedded chat components

Spells

Powerful agent interactions and workflows

Mentions

Context-aware mention system for chat

Agent Connection Modules

Connect to various AI backends and services

Component Library

Pre-built UI components you own the code for, Shadcn style

​
Quick Navigation

Is Cedar right for you?

Our philosophy, limitations & strengths, what Cedar is made for

Architecture

Understand how Cedar-OS is structured and works

Getting Started

Start building with Cedar-OS

Demos of Cedar-OS

See Cedar-OS in action