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title MCP Server
description Access Kernel's cloud-based browsers via MCP

Our Model Context Protocol (MCP) server lets any compatible AI model or agent launch Chromium browsers, inject context, evaluate JavaScript, and stream DOM snapshots from Kernel's cloud platform — via a single secure endpoint.

Setup Instructions

General (Transports)

  • Streamable HTTP (recommended): https://mcp.onkernel.com/mcp
  • stdio via mcp-remote (for clients without remote MCP support): npx -y mcp-remote https://mcp.onkernel.com/mcp

Use the streamable HTTP endpoint where supported for increased reliability. If your client does not support remote MCP, use mcp-remote over stdio.

Kernel's server is a centrally hosted, authenticated remote MCP using OAuth 2.1 with dynamic client registration.

Connect in your client

Claude

Our remote MCP server is not compatible with the method Free users of Claude use to add MCP servers.

Pro, Max, Team & Enterprise (Claude.ai and Claude Desktop)

  1. Go to Settings → Connectors → Add custom connector.
  2. Enter: Integration name: Kernel, Integration URL: https://mcp.onkernel.com/mcp, then click Add.
  3. In Settings → Connectors, click Connect next to Kernel to launch OAuth and approve.
  4. In chat, click Search and tools and enable the Kernel tools if needed.

On Claude for Work (Team/Enterprise), only Primary Owners or Owners can enable custom connectors for the org. After it's configured, each user still needs to go to Settings → Connectors and click Connect to authorize it for their account.

Claude Code CLI

claude mcp add --transport http kernel https://mcp.onkernel.com/mcp
# Then in the REPL run once to authenticate:
/mcp

Cursor

Click here to install Kernel on Cursor.

Manual setup

  1. Press ⌘/Ctrl Shift J.
  2. Go to MCP & Integrations → New MCP server.
  3. Add this configuration:
{
  "mcpServers": {
    "kernel": {
      "url": "https://mcp.onkernel.com/mcp"
    }
  }
}
  1. Save. The server will appear in Tools.

Goose

Click here to install Kernel on Goose in one click.

Goose Desktop

  1. Click Extensions in the sidebar of the Goose Desktop.
  2. Click Add custom extension.
  3. On the Add custom extension modal, enter:
    • Extension Name: Kernel
    • Type: STDIO
    • Description: Access Kernel's cloud-based browsers via MCP
    • Command: npx -y mcp-remote https://mcp.onkernel.com/mcp
    • Timeout: 300
  4. Click Save Changes button.

Goose CLI

  1. Run the following command: 
    goose configure
  2. Select Add Extension from the menu.
  3. Choose Command-line Extension.
  4. Follow the prompts:
    • Extension name: Kernel
    • Command: npx -y mcp-remote https://mcp.onkernel.com/mcp
    • Timeout: 300
    • Description: Access Kernel's cloud-based browsers via MCP

Visual Studio Code

{
  "mcpServers": {
    "kernel": {
      "url": "https://mcp.onkernel.com/mcp",
      "type": "http"
    }
  }
}
  1. Press ⌘/Ctrl Shift P → search MCP: Add Server.
  2. Select HTTP (HTTP or Server-Sent Events).
  3. Enter: https://mcp.onkernel.com/mcp
  4. Name the server Kernel → Enter.

Windsurf

  1. Press ⌘/Ctrl , to open settings.
  2. Navigate Cascade → MCP servers → View raw config.
  3. Paste:
{
  "mcpServers": {
    "kernel": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.onkernel.com/mcp"]
    }
  }
}
  1. On Manage MCPs, click Refresh to load Kernel MCP.

Zed

  1. Press ⌘/Ctrl , to open settings.
  2. Paste:
{
  "context_servers": {
    "kernel": {
      "source": "custom",
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.onkernel.com/mcp"]
    }
  }
}

Others

Many other MCP-capable tools accept:

  • Command: npx
  • Arguments: -y mcp-remote https://mcp.onkernel.com/mcp
{
  "kernel": {
    "command": "npx",
    "args": ["-y", "mcp-remote", "https://mcp.onkernel.com/mcp"]
  }
}

Configure these values wherever the tool expects MCP server settings.

Tools

Browser Automation

  • create_browser - Launch a new browser session
  • get_browser - Get browser session information
  • list_browsers - List active browser sessions
  • delete_browser - Terminate a browser session

App Management

  • list_apps - List apps in your Kernel organization
  • invoke_action - Execute actions in Kernel apps
  • get_deployment - Get deployment status and logs
  • list_deployments - List all deployments
  • get_invocation - Get action invocation details

Documentation & Search

  • search_docs - Search Kernel platform documentation and guides

Troubleshooting

  • Cursor clean reset: ⌘/Ctrl Shift P → run Cursor: Clear All MCP Tokens (resets all MCP servers and auth; re-enable Kernel and re-authenticate).
  • Clear saved auth and retry: rm -rf ~/.mcp-auth
  • Ensure a recent Node.js version when using npx mcp-remote
  • If behind strict networks, try stdio via mcp-remote, or explicitly set the transport your client supports

Examples

Invoke apps from anywhere

Human: Run my web-scraper app to get data from reddit.com
Assistant: I'll execute your web-scraper action with reddit.com as the target.
[Uses invoke_action tool to run your deployed app in the cloud]

Create persistent browser sessions

Human: Create a stealth browser session that I can reuse for testing login flows
Assistant: I'll create a persistent, stealth-enabled browser that maintains state between uses.
[Uses create_browser tool with persistence and stealth options]