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2026-04-08 21:22:35 -07:00

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name: LangGraph (Python)
slug: langgraph-python
category: popular
language: python
logo: /logos/langgraph-python.svg
description: >-
The most feature-complete CopilotKit integration. LangGraph provides a flexible
graph-based framework for building agents with Python. Supports the full range of
CopilotKit features including generative UI, shared state, human-in-the-loop,
sub-agents, and streaming.
partner_docs: https://docs.copilotkit.ai/integrations/langgraph
repo: https://github.com/CopilotKit/CopilotKit/tree/main/showcase/packages/langgraph-python
copilotkit_version: 2.0.0
backend_url: https://showcase-langgraph-python-production.up.railway.app
deployed: true
sort_order: 10
generative_ui:
- constrained-explicit
interaction_modalities:
- sidebar
- embedded
- chat
managed_platform:
name: LangGraph Platform
url: https://langsmith.com
starter:
path: examples/integrations/langgraph-python
name: Collaborative Todo App
description: Full-featured todo app with agent-driven state management, generative UI, and MCP integration
github_url: https://github.com/CopilotKit/CopilotKit/tree/main/examples/integrations/langgraph-python
demo_url: https://showcase-starter-langgraph-python-production.up.railway.app
features:
- agentic-chat
- hitl
- tool-rendering
- gen-ui-tool-based
- gen-ui-agent
- shared-state-read
- shared-state-write
- shared-state-streaming
- subagents
demos:
- id: agentic-chat
name: Agentic Chat
description: Natural conversation with frontend tool execution
tags:
- chat-ui
route: /demos/agentic-chat
animated_preview_url:
- id: hitl
name: Human in the Loop
description: User approves agent actions before execution
tags:
- interactivity
route: /demos/hitl
animated_preview_url:
- id: tool-rendering
name: Tool Rendering
description: Backend agent tools rendered as UI components
tags:
- agent-capabilities
route: /demos/tool-rendering
animated_preview_url:
- id: gen-ui-tool-based
name: Tool-Based Generative UI
description: Agent uses tools to trigger UI generation
tags:
- generative-ui
route: /demos/gen-ui-tool-based
animated_preview_url:
- id: gen-ui-agent
name: Agentic Generative UI
description: Long-running agent tasks with generated UI
tags:
- generative-ui
route: /demos/gen-ui-agent
animated_preview_url:
- id: shared-state-read
name: Shared State (Reading)
description: Reading agent state from UI
tags:
- agent-state
route: /demos/shared-state-read
animated_preview_url:
- id: shared-state-write
name: Shared State (Writing)
description: Writing to agent state from UI
tags:
- agent-state
route: /demos/shared-state-write
animated_preview_url:
- id: shared-state-streaming
name: State Streaming
description: Per-token state delta streaming from agent to UI
tags:
- agent-state
route: /demos/shared-state-streaming
animated_preview_url:
- id: subagents
name: Sub-Agents
description: Multiple agents with visible task delegation
tags:
- multi-agent
route: /demos/subagents
animated_preview_url: