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Kernel is a developer platform that provides browser infrastructure for web agents. By integrating with Notte, you can use Kernel browser infra to run reliable browser agents using Chrome DevTools Protocol (CDP).

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Adding Kernel to existing Notte implementations

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1. Install Notte and Kernel SDK

uv pip install notte-sdk
uv pip install kernel

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2. Initialize Notte and Kernel

Import the libraries and create a cloud browser session: 
from kernel import Kernel
from notte_sdk import NotteClient

# Initialize clients
kernel = Kernel()
notte_client = NotteClient()

# Create a browser on Kernel
kernel_browser = kernel.browsers.create()

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3. Connect Notte to Kernel’s CDP endpoint

Use Kernel’s CDP URL to create a Notte session: 
# Connect Notte to Kernel's browser via CDP
with notte_client.Session(cdp_url=kernel_browser.cdp_ws_url) as session:
    # Create an agent with a task
    agent = notte_client.Agent(session=session, max_steps=10)

    # Run your automation task
    result = agent.run(
        task="extract pricing plans from https://www.notte.cc"
    )

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Complete example script

Here’s a complete, runnable script that demonstrates the full integration: 
from kernel import Kernel
from notte_sdk import NotteClient
import os
from dotenv import load_dotenv

# Load environment variables from .env file
load_dotenv()

def main():
    # Initialize clients
    kernel = Kernel()

    notte_api_key = os.getenv("NOTTE_API_KEY")
    if not notte_api_key:
        raise ValueError("NOTTE_API_KEY not found in environment variables")

    notte_client = NotteClient(api_key=notte_api_key)

    # Create a headful browser on Kernel
    print("Creating browser session on Kernel...")
    kernel_browser = kernel.browsers.create()
    # print(kernel_browser.browser_live_view_url)

    try:
        # Connect Notte to Kernel's browser via CDP
        print("Connecting Notte to Kernel browser...")
        with notte_client.Session(cdp_url=kernel_browser.cdp_ws_url) as session:
            # Create an agent with a task
            agent = notte_client.Agent(session=session, max_steps=10)

            # Run your automation task
            result = agent.run(
                task="extract pricing plans from https://www.notte.cc"
            )

            print(f"Task completed: {result.answer}")

    except Exception as e:
        print(f"Error during automation: {e}")

    finally:
        # Always clean up the browser session
        kernel.browsers.delete_by_id(kernel_browser.session_id)
        print("Browser session cleaned up")

if __name__ == "__main__":
    main()

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Benefits of using Kernel with Notte

  • No local browser management: Run agents without installing or maintaining browsers locally
  • Scalability: Launch multiple browser sessions in parallel for concurrent tasks
  • Cloud infrastructure: Leverage Kernel’s optimized browser infrastructure
  • Stealth mode: Built-in anti-detection features for web scraping
  • Session control: Programmatic control over browser lifecycle
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