How to integrate Kernel MCP with Atomic Agent

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Kernel.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Kernel account. See the Atomic Agent documentation for installation instructions.

How Atomic Agent connects to Kernel

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Kernel to Atomic Agent

1. Sign up or sign in to the Composio dashboard. Copy your API key.
2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
3. Ask Atomic Agent to do something in Kernel. It searches Composio for the right tool.
4. On first use, open the sign-in link returned in the chat. Connect your Kernel account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

The Kernel MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Kernel account. It provides structured and secure access to your cloud browser infrastructure and browser automation capabilities, so your agent can manage browser sessions, perform computer actions, run Playwright automation, reuse authenticated profiles, and inspect session replays on your behalf.

• Browser session management: Have your agent create and manage browser sessions, use pre-warmed browser pools, and work with archived session telemetry.
• Web and computer automation: Direct your agent to interact with websites through computer actions, run Playwright code, execute commands inside browser environments, or send requests through a browser session.
• Persistent browser access: Let the agent manage profiles, credentials, authentication connections, proxies, and extensions for browser tasks that need reusable login state or custom routing.
• Apps and WebMCP tools: Instruct your agent to discover and invoke deployed Kernel app actions or use native WebMCP tools registered across open tabs and frames.
• Projects, recordings, and documentation: Have your agent manage projects, inspect browser replay recordings, and search Kernel documentation for relevant guides and API references.

Use Kernel from Atomic Agent

With your account connected, ask Atomic Agent to work with Kernel in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.