SaaS teams adding an in-app copilot
Use CopilotKit to wire chat, state, and tool actions into an existing React or Angular product.
Skip if:
Skip if your AI feature is only a backend batch job with no user-facing assistant.
Open source alternative to Vercel AI SDK, Microsoft Copilot Studio and Google Vertex AI Agent Builder
Last verified
Build agentic chat, generative UI, and shared-state copilots across web, Slack, Teams, and mobile apps. MIT licensed.
Use CopilotKit to wire chat, state, and tool actions into an existing React or Angular product.
Skip if your AI feature is only a backend batch job with no user-facing assistant.
Use shared state and generative UI patterns when agents need to change interface elements during work.
Skip if plain chat completion is enough.
Embedding AI into an app takes more than streaming text from an LLM. The assistant needs UI state, tool calls, confirmation flows, generated interface updates, and a frontend that feels native to the product.
CopilotKit provides chat UI, message streaming, tool calls, and agent responses for frontend applications.
Agents can generate and update UI components dynamically while reading and writing shared application state.
The README describes flows where agents pause to request user input, confirmation, or edits before continuing.
CopilotKit is better when the feature is an in-app copilot that needs shared UI state, tool rendering, and human confirmation flows. Vercel AI SDK is still better for general streaming primitives and model plumbing when the product team wants to design the assistant layer itself.
Start with the official CopilotKit scaffold when you want a frontend wired to an AG-UI compatible backend quickly.
```bash
npx copilotkit@latest create
```
After the scaffold finishes, add your model provider key and connect the generated app to the agent runtime you want to use.CopilotKit is an SDK for building agentic applications, generative UI, and chat features in frontend apps.
The README positions CopilotKit for React and Angular applications.
CopilotKit replaces custom in-app AI assistant plumbing around chat UI, shared state, tool rendering, and confirmation flows.
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