CloakBrowser MCP

io.github.swimmwatch/cloakbrowser-mcp · v1.15.1

Playwright MCP-compatible browser automation bridge for CloakBrowser Chromium.

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add cloakbrowser-mcp -e PLAYWRIGHT_MCP_BROWSER_ENGINE=<PLAYWRIGHT_MCP_BROWSER_ENGINE> -e PLAYWRIGHT_MCP_HEADLESS=<PLAYWRIGHT_MCP_HEADLESS> -e PLAYWRIGHT_MCP_OUTPUT_DIR=<PLAYWRIGHT_MCP_OUTPUT_DIR> -e PLAYWRIGHT_MCP_CODEGEN=<PLAYWRIGHT_MCP_CODEGEN> -e PLAYWRIGHT_MCP_SNAPSHOT_BOXES=<PLAYWRIGHT_MCP_SNAPSHOT_BOXES> -e PLAYWRIGHT_MCP_TIMEOUT_SETTLE=<PLAYWRIGHT_MCP_TIMEOUT_SETTLE> -e PLAYWRIGHT_MCP_USER_DATA_DIR=<PLAYWRIGHT_MCP_USER_DATA_DIR> -e CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS=<CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS> -e CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS=<CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS> -e CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK=<CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK> -e CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH=<CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH> -e CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS=<CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS> -- npx -y [email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "cloakbrowser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PLAYWRIGHT_MCP_BROWSER_ENGINE": "<PLAYWRIGHT_MCP_BROWSER_ENGINE>",
        "PLAYWRIGHT_MCP_HEADLESS": "<PLAYWRIGHT_MCP_HEADLESS>",
        "PLAYWRIGHT_MCP_OUTPUT_DIR": "<PLAYWRIGHT_MCP_OUTPUT_DIR>",
        "PLAYWRIGHT_MCP_CODEGEN": "<PLAYWRIGHT_MCP_CODEGEN>",
        "PLAYWRIGHT_MCP_SNAPSHOT_BOXES": "<PLAYWRIGHT_MCP_SNAPSHOT_BOXES>",
        "PLAYWRIGHT_MCP_TIMEOUT_SETTLE": "<PLAYWRIGHT_MCP_TIMEOUT_SETTLE>",
        "PLAYWRIGHT_MCP_USER_DATA_DIR": "<PLAYWRIGHT_MCP_USER_DATA_DIR>",
        "CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS": "<CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS>",
        "CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS": "<CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS>",
        "CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK": "<CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK>",
        "CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH": "<CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH>",
        "CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS": "<CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "cloakbrowser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PLAYWRIGHT_MCP_BROWSER_ENGINE": "<PLAYWRIGHT_MCP_BROWSER_ENGINE>",
        "PLAYWRIGHT_MCP_HEADLESS": "<PLAYWRIGHT_MCP_HEADLESS>",
        "PLAYWRIGHT_MCP_OUTPUT_DIR": "<PLAYWRIGHT_MCP_OUTPUT_DIR>",
        "PLAYWRIGHT_MCP_CODEGEN": "<PLAYWRIGHT_MCP_CODEGEN>",
        "PLAYWRIGHT_MCP_SNAPSHOT_BOXES": "<PLAYWRIGHT_MCP_SNAPSHOT_BOXES>",
        "PLAYWRIGHT_MCP_TIMEOUT_SETTLE": "<PLAYWRIGHT_MCP_TIMEOUT_SETTLE>",
        "PLAYWRIGHT_MCP_USER_DATA_DIR": "<PLAYWRIGHT_MCP_USER_DATA_DIR>",
        "CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS": "<CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS>",
        "CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS": "<CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS>",
        "CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK": "<CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK>",
        "CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH": "<CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH>",
        "CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS": "<CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "cloakbrowser-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PLAYWRIGHT_MCP_BROWSER_ENGINE": "<PLAYWRIGHT_MCP_BROWSER_ENGINE>",
        "PLAYWRIGHT_MCP_HEADLESS": "<PLAYWRIGHT_MCP_HEADLESS>",
        "PLAYWRIGHT_MCP_OUTPUT_DIR": "<PLAYWRIGHT_MCP_OUTPUT_DIR>",
        "PLAYWRIGHT_MCP_CODEGEN": "<PLAYWRIGHT_MCP_CODEGEN>",
        "PLAYWRIGHT_MCP_SNAPSHOT_BOXES": "<PLAYWRIGHT_MCP_SNAPSHOT_BOXES>",
        "PLAYWRIGHT_MCP_TIMEOUT_SETTLE": "<PLAYWRIGHT_MCP_TIMEOUT_SETTLE>",
        "PLAYWRIGHT_MCP_USER_DATA_DIR": "<PLAYWRIGHT_MCP_USER_DATA_DIR>",
        "CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS": "<CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS>",
        "CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS": "<CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS>",
        "CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK": "<CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK>",
        "CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH": "<CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH>",
        "CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS": "<CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`PLAYWRIGHT_MCP_BROWSER_ENGINE` Optional	Bridge browser engine: cloak or playwright.
`PLAYWRIGHT_MCP_HEADLESS` Optional	Run the browser in headless mode.
`PLAYWRIGHT_MCP_OUTPUT_DIR` Optional	Directory where upstream Playwright MCP writes artifacts.
`PLAYWRIGHT_MCP_CODEGEN` Optional	Generate code in typescript, python, java, csharp, or none.
`PLAYWRIGHT_MCP_SNAPSHOT_BOXES` Optional	Include element bounding boxes in browser snapshots.
`PLAYWRIGHT_MCP_TIMEOUT_SETTLE` Optional	Milliseconds to wait after actions for triggered work to settle.
`PLAYWRIGHT_MCP_USER_DATA_DIR` Optional	Persistent Chromium profile directory. The bridge resolves it to an absolute path and writes it to generated Playwright MCP config.
`CLOAK_PLAYWRIGHT_MCP_CONTEXT_OPTIONS` Optional	JSON object with validated Playwright context options such as viewport, locale, timezoneId, permissions, geolocation, and headers.
`CLOAK_PLAYWRIGHT_MCP_EXTENSION_PATHS` Optional	JSON array or comma-separated list of Chrome extension directories. Requires PLAYWRIGHT_MCP_USER_DATA_DIR.
`CLOAK_PLAYWRIGHT_MCP_CONSOLE_FALLBACK` Optional	Patch upstream console message collection for CloakBrowser compatibility.
`CLOAK_PLAYWRIGHT_MCP_GEOIP_PROXY_MATCH` Optional	Resolve proxy GeoIP and match CloakBrowser timezone/locale fingerprint flags when PLAYWRIGHT_MCP_PROXY_SERVER is set.
`CLOAK_PLAYWRIGHT_MCP_EXTRA_ARGS` Optional	Comma-separated or JSON array of extra Chromium launch arguments.

Details

Package	`[email protected]` (NPM, stdio)
Package	`[email protected]` (NPM, streamable-http)
Package	`ghcr.io/swimmwatch/cloakbrowser-mcp:1.15.1` (OCI, stdio)
Package	`docker.io/swimmwatch/cloakbrowser-mcp:1.15.1` (OCI, stdio)
First published	18 Oct 2026
Last updated	18 Oct 2026
Registry name	`io.github.swimmwatch/cloakbrowser-mcp`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

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