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Vuln-Inc

Behead Browser MCP

by Vuln-Inc
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Behead Browser MCP

Browser automation and DevTools MCP servers backed exclusively by Behead Browser and Patchright Chromium.

  • behead-browser-mcp handles navigation, interaction, evaluation, screenshots, cookies, and request history.

  • behead-browser-devtools-mcp adds multi-page control, UID snapshots, console and network inspection, CSS, emulation, traces, heap snapshots, and raw CDP.

Neither server launches Playwright, Puppeteer, Google Chrome, or the ordinary Chrome DevTools MCP.

Requirements

  • Node.js 20 or newer

  • A built Behead Browser checkout

  • Patchright's full Chromium installation

git clone https://github.com/Vuln-Inc/behead-browser.git
cd behead-browser
bun install --frozen-lockfile
bun run build
bunx patchright install chromium

Related MCP server: Browser CDP MCP Server

Install

npm install -g github:Vuln-Inc/behead-browser-mcp
export BEHEAD_BROWSER_MODULE=/absolute/path/to/behead-browser/dist/index.js

The environment variable must point to the compiled module exporting launchBeheadBrowser.

OpenCode

{
  "mcp": {
    "behead-browser": {
      "type": "local",
      "command": ["behead-browser-mcp"],
      "environment": {
        "BEHEAD_BROWSER_MODULE": "/absolute/path/to/behead-browser/dist/index.js"
      }
    },
    "behead-devtools": {
      "type": "local",
      "command": ["behead-browser-devtools-mcp"],
      "environment": {
        "BEHEAD_BROWSER_MODULE": "/absolute/path/to/behead-browser/dist/index.js"
      }
    }
  }
}

Use behead_browser_* for normal automation and behead_devtools_* when console, network, performance, memory, or arbitrary CDP access is required. Network history calls default to 50 records per page; use pageIdx and pageSize when more detail is needed.

Verify

npm test
BEHEAD_BROWSER_MODULE=/absolute/path/to/behead-browser/dist/index.js npm run test:integration

The integration suite launches the real browser and verifies navigation, CDP evaluation, snapshots, console and network capture, performance metrics, tracing, and heap snapshots.

Limits

Behead Browser intentionally blocks service and shared workers. The DevTools server enables CDP Runtime in its own browser process, so use the automation server when minimizing debugger-observable behavior matters. Raw CDP access is powerful and should only be exposed to trusted MCP clients.

This server cannot be deployed

Shareable, User-Owned Context BackendPeople, applications, and agents read, write, and coordinate together in one context lake. Reach it over MCP, a CLI, a Python SDK, or REST.fulcradynamics.comAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

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