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Option 1: Use Copilot Cloud

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Get a free hosted Copilot Runtime via Copilot Cloud:

Try Copilot Cloud

Initialize CopilotKit using your public API key:

<CopilotKit publicApiKey="Your Copilot Cloud API key">
  <YourApp/>
</CopilotKit>

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Option 2: Host your own Copilot Runtime

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Install CopilotKit Backend packages

Install the CopilotKit backend packages:

  npm i @copilotkit/backend

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Manually specified endpoint: Next.js edge function (typescript)

Remember to add any required environment variables. E.g. to use OpenAI:

.env.local
OPENAI_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

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Manually specified endpoint: Node.js (typescript)

Remember to add any required environment variables. E.g. to use OpenAI:

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Firebase (GCP) Cloud Function (typescript)

See this repo for a full example: https://github.com/CopilotKit/copilotkit-firebase-demo

Quickstart: CopilotTextareaQuickstart In-App Agents (via LangChain and LangGraph)