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Jordan Ritter
23af69041c
Migrate 15 example integrations from the v1 compatibility facade to native v2 CopilotKit APIs. The v1 surface delegates to v2 internally so this is an API surface change, not a functional one. Key changes per integration: - Import paths: @copilotkit/react-core -> react-core/v2, @copilotkit/runtime -> runtime/v2 - Hook renames: useCoAgent -> useAgent, useCopilotAction -> useFrontendTool, useRenderToolCall -> useRenderTool - UI: CopilotSidebar from react-ui -> react-core/v2 - Styles: react-ui/styles.css -> react-core/v2/styles.css - Runtime: copilotRuntimeNextJSAppRouterEndpoint -> createCopilotEndpoint + hono/vercel - Removed @copilotkit/react-ui and @copilotkit/shared deps Integrations migrated (v1 -> v2): a2a-middleware, adk, agno, crewai-crews, crewai-flows, langgraph-js, llamaindex, mastra, ms-agent-framework-dotnet, ms-agent-framework-python, pydantic-ai, strands-python Mixed integrations cleaned up (stale deps removed): agent-spec, agentcore, langgraph-fastapi, langgraph-python, langgraph-python-threads
CopilotKit <> LangGraph Starter
This is a starter template for building AI agents using LangGraph and CopilotKit. It provides a modern Next.js application with an integrated LangGraph agent to be built on top of.
Prerequisites
- Node.js 18+
- Python 3.8+
- Poetry 2+
- Any of the following package managers:
- OpenAI API Key (for the LangGraph agent)
Getting Started
- Install dependencies using your preferred package manager:
# Using npm (default)
npm install
# Using pnpm
pnpm install
# Using yarn
yarn install
# Using bun
bun install
- Install Python dependencies for the LangGraph agent:
# Using npm (default)
npm run install:agent
# Using pnpm
pnpm install:agent
# Using yarn
yarn install:agent
# Using bun
bun run install:agent
- Set up your OpenAI API key:
echo 'OPENAI_API_KEY=your-openai-api-key-here' > agent/.env
- Start the development server:
# Using npm (default)
npm run dev
# Using pnpm
pnpm dev
# Using yarn
yarn dev
# Using bun
bun run dev
This will start both the UI and agent servers concurrently.
Available Scripts
The following scripts can also be run using your preferred package manager:
dev- Starts both UI and agent servers in development modedev:debug- Starts development servers with debug logging enableddev:ui- Starts only the Next.js UI serverdev:agent- Starts only the LangGraph agent serverbuild- Builds the Next.js application for productionstart- Starts the production serverinstall:agent- Installs Python dependencies for the agent
Documentation
The main UI component is in src/app/page.tsx. You can:
- Modify the theme colors and styling
- Add new frontend actions
- Customize the CopilotKit sidebar appearance
📚 Documentation
- LangGraph Documentation - Learn more about LangGraph and its features
- CopilotKit Documentation - Explore CopilotKit's capabilities
- Next.js Documentation - Learn about Next.js features and API
- YFinance Documentation - Financial data tools
Contributing
Feel free to submit issues and enhancement requests! This starter is designed to be easily extensible.
License
This project is licensed under the MIT License - see the LICENSE file for details.
Troubleshooting
Agent Connection Issues
If you see "I'm having trouble connecting to my tools", make sure:
- The LangGraph agent is running on port 8000
- Your OpenAI API key is set correctly
- Both servers started successfully
Python Dependencies
If you encounter Python import errors:
cd agent
poetry lock && poetry install