# Kernel MCP server > Launch and control cloud Chromium browsers, run Playwright code, and manage Kernel apps and deployments from your assistant. - Listing: https://mcp.tc/i/kernel - Connect: use the server's own URL `https://mcp.onkernel.com/mcp` (OAuth sign-in at the server); clients connect to it directly. The listing link is a page, not an MCP endpoint. - Type: remote (Streamable HTTP) - Auth: OAuth sign-in - Category: [Browser Automation](https://mcp.tc/c/browser-automation) - Vendor: Kernel - Homepage: - Repository: ## About Connects an assistant to the Kernel platform. It can start headless Chromium sessions in the cloud, run Playwright code against live browsers, and run persistent JavaScript Browser REPL cells. It can also record MP4 replays of browser sessions, deploy and manage Kernel apps, monitor deployments and invocations, and search Kernel documentation. Runs as a hosted streamable HTTP endpoint at https://mcp.onkernel.com/mcp with OAuth 2.1 sign-in through your Kernel account. Access can be granted organization-wide or limited to one Kernel project. Clients without remote MCP support can use npx -y mcp-remote with the same URL. The source is MIT licensed. ## What it can do - Launch and control headless Chromium sessions in the cloud - Execute Playwright code against live browsers - Run persistent JavaScript Browser REPL cells - Record MP4 video replays of browser automation - Deploy and manage Kernel apps - Monitor deployments and track invocations - Search Kernel documentation ## Example prompts - "Open a cloud browser and take a screenshot of example.com" - "Run a Playwright script to fill out the signup form on my staging site" - "Show the status of my latest Kernel deployment" - "Record a video replay while you test the checkout flow" ## Install ### Claude Code 1. Run this in a terminal, in your project folder: ```bash claude mcp add --transport http kernel https://mcp.onkernel.com/mcp ``` 2. Start Claude Code, type `/mcp`, pick **kernel** and choose **Authenticate**. A browser window opens for the Kernel sign-in. Add `--scope user` to make it available in every project, not just this one. ### Claude Desktop 1. Open **Settings → Connectors** and click **Add custom connector**. 2. Name it **Kernel** and paste this URL: ```url https://mcp.onkernel.com/mcp ``` 3. Click **Add**, then **Connect**, and sign in when Kernel asks. Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too. ### claude.ai 1. Open the connector form on claude.ai. This button fills in the name and URL for you: [Add to claude.ai]() (opens connector settings) 2. Check that the URL reads `https://mcp.onkernel.com/mcp` and click **Add**. 3. Click **Connect** and sign in when Kernel asks. Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**. ### ChatGPT 1. On chatgpt.com, open **Settings → Security and login** and turn on **Developer mode**. 2. Go to `chatgpt.com/plugins` and click **+** to create an app for a remote MCP server. 3. Paste `https://mcp.onkernel.com/mcp` as the server URL and choose **OAuth**. ChatGPT sends you to Kernel to sign in. Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts. ### Cursor [Add to Cursor]() (opens Cursor) Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project): `mcp.json`: ```json { "mcpServers": { "kernel": { "url": "https://mcp.onkernel.com/mcp" } } } ``` Cursor shows **Needs login** next to the server. Click it to sign in. ### VS Code [Install in VS Code]() (opens VS Code) Or from a terminal: ```bash code --add-mcp '{"name":"kernel","type":"http","url":"https://mcp.onkernel.com/mcp"}' ``` Or commit it to the repo in `.vscode/mcp.json`: `.vscode/mcp.json`: ```json { "servers": { "kernel": { "type": "http", "url": "https://mcp.onkernel.com/mcp" } } } ``` VS Code asks you to sign in the first time the server starts. ### Devin Desktop 1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows): `mcp_config.json`: ```json { "mcpServers": { "kernel": { "serverUrl": "https://mcp.onkernel.com/mcp" } } } ``` 2. Refresh the MCP server list in Cascade and sign in when asked. Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers. ### Codex ```bash codex mcp add kernel --url https://mcp.onkernel.com/mcp codex mcp login kernel ``` Or edit `~/.codex/config.toml` directly: `config.toml`: ```toml [mcp_servers.kernel] url = "https://mcp.onkernel.com/mcp" ``` ### Gemini CLI ```bash gemini mcp add --transport http kernel https://mcp.onkernel.com/mcp ``` Then, inside Gemini CLI, run `/mcp auth kernel` to sign in. This adds it to the current project. Add `-s user` to use it everywhere. ### Any client Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file. ```json { "mcpServers": { "kernel": { "type": "http", "url": "https://mcp.onkernel.com/mcp" } } } ``` Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE. Client only starts local servers? Bridge it with `npx -y mcp-remote https://mcp.onkernel.com/mcp`. ## Details - Server version: 1.0.0 - Last checked: 2026-10-03 (reachable, asks for credentials) - Listed: 2026-10-03 - Updated: 2026-10-03 --- Source: https://mcp.tc/i/kernel (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report