How to integrate Kernel MCP with Atomic Agent

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Kernel MCP

Dcr Oauth

Kernel MCP is a cloud-browser infrastructure and browser automation platform with a hosted OAuth server. Use it to run reliable remote browsing sessions and automate web tasks without managing browsers.

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Introduction

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.

Also integrate Kernel MCP with

ChatGPT Claude Cowork Hermes

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

Sign up or sign in to the Composio dashboard. Copy your API key.
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.
Ask Atomic Agent to do something in Kernel. It searches Composio for the right tool.
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.

bash

COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the Kernel MCP server, and what's possible with it?

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 so your agent can perform Kernel operations on your behalf.

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.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

TOOLS

Supported Tools

Every Kernel MCP action and event your agent gets out of the box.

Browser curl

Send an HTTP request through an existing Kernel browser session's Chrome network stack.

Computer action

Execute computer actions on a browser session.

Exec command

Execute a command synchronously inside a browser VM.

Execute playwright code

Execute Playwright/TypeScript automation code against an existing Kernel browser session.

Get connection context

Inspect the authenticated Kernel connection before a project-scoped operation.

Get more tools

Check for additional tools whenever your task might benefit from specialized capabilities - even if existing tools could work as a fallback.

Manage api keys

Manage Kernel API keys.

Manage apps

Manage Kernel apps when an agent needs to discover deployed app actions, invoke an app, or inspect deployment/invocation state.

Manage auth connections

Manage reusable authenticated profiles for third-party websites.

Manage browser pools

Manage pre-warmed browser pools when an agent needs fast browser acquisition or reusable session capacity.

Manage browsers

Manage browser sessions and their archived telemetry.

Manage credential providers

Manage external credential providers (e.

Manage credentials

Manage credentials stored in Kernel for managed auth.

Manage extensions

Manage browser extensions uploaded to Kernel.

Manage profiles

Manage browser profiles when an agent needs persistent cookies, login state, or reusable browser state.

Manage projects

Manage Kernel projects for resource isolation within an organization.

Manage proxies

Manage proxy configurations for routing browser traffic.

Manage replays

Manage video replay recordings for a browser session.

Search docs

Search Kernel platform documentation for guides, tutorials, and API references.

Submit feedback

send feedback about anything KERNEL to the KERNEL team.

FRAMEWORKS

How to build Kernel MCP Agent with another framework

ChatGPT

Use Kernel MCP with ChatGPT

Claude Cowork

Use Kernel MCP with Claude Cowork

Hermes

Use Kernel MCP with Hermes

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FAQ

Frequently asked questions

With a standalone Kernel MCP server, the agents and LLMs can only access a fixed set of Kernel tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Kernel and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Atomic Agent fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Kernel tools.

Yes, absolutely. You can configure which Kernel scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Kernel data and credentials are handled as safely as possible.

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