Claude Agent SDK (Python)

Python

Agent Frameworks

CopilotKit integration with Claude Agent SDK (Python). Supports the full range of CopilotKit features including generative UI, shared state, human-in-the-loop, sub-agents, and streaming.

Source Code Developer Guide

Get Started

CLI Start Command

Copy-paste command to clone the canonical starter

npx copilotkit@latest init --framework claude-sdk-python

Claude Agent SDK (Python)

Get Started

CLI Start Command

Live Demos

Agentic Chat

Tool Rendering

Agentic Generative UI

State Streaming

Shared State (Read + Write)

Sub-Agents

Pre-Built: Sidebar

Pre-Built: Popup

Chat Customization (Slots)

Chat Customization (CSS)

Headless Chat (Simple)

Headless Chat (Complete)

Frontend Tools (In-App Actions)

Frontend Tools (Async)

In-Chat Human in the Loop

In-App Human in the Loop (Frontend Tools + async HITL)

Readonly State (Agent Context)

Tool Rendering (Default Catch-all)

Tool Rendering (Custom Catch-all)

Fully Open-Ended Generative UI

Open-Ended Gen UI (Advanced: with frontend function calling)

BYOC: json-render

BYOC: Hashbrown

Multimodal Attachments

Voice Input

Agent Config Object

Agentic Chat (Reasoning)

Reasoning (Default Render)

Tool Rendering (Reasoning Chain)

Authentication

MCP Apps

Beautiful Chat

Tool-Based Generative UI

In-Chat HITL (useHumanInTheLoop — ergonomic API)

In-Chat HITL (Booking)

In-Chat HITL (useInterrupt — low-level primitive)

Headless Interrupt (testing)

Declarative Generative UI (A2UI)

Declarative Generative UI (A2UI — Fixed Schema)