Val Town

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Quick start with Puppeteer

1. Create a free Kernel account and generate an API key from Settings → API Keys
2. Remix the Kernel Puppeteer val
3. Add your KERNEL_API_KEY to the val’s Environment Variables (left sidebar)
4. Click Run
5. View logs for output

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Quick start with Playwright

1. Remix the Kernel Playwright val
2. Add your KERNEL_API_KEY to Environment Variables
3. Set TMPDIR to /tmp to avoid Playwright file-system warnings
4. Click Run
5. Check the logs for output

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Quick start with Stagehand + Gemini

1. Remix the Kernel Stagehand + Gemini val
2. Add the following to Environment Variables:
   • KERNEL_API_KEY — from Kernel’s API keys page
   • GOOGLE_API_KEY — from Google AI Studio
3. Import runAgent into your val and call it with a task, starting URL, and timeout:
   const result = await runAgent(
     "Find the top Hacker News story and summarize it",
     "https://news.ycombinator.com",
     120,
   );
   
4. The agent returns an object with a success status and a message containing the results.

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Quick start with a browser-loop agent

1. Remix the Kernel browser loop val
2. Add the following to Environment Variables:
   • KERNEL_API_KEY — from your Kernel dashboard
   • ANTHROPIC_API_KEY — from the Anthropic Console
3. Run check.ts to verify package compatibility and authenticate both APIs
4. Run main.ts to execute the agent
5. Watch the live-view URL logged at startup and review the tool trace in Logs