Chromium Bridge MCP server
MCP bridge between Chromium browsers (Arc, Vivaldi, Brave) and Claude Code: browser automation
6 stars32 downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Chromium Bridge tools
No tool declarations could be read from the package source. They show once the server is installed.
Public scan report
scanner v0.1.9 · 2026-09-25 · same rubric, same numbers if you re-run it
- Code scan2 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 0 days ago15/15
- Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
What the publisher says
From the Chromium Bridge repository's README, as published. We do not edit it. Read it on GitHub
Chromium Bridge
Русская версия
A bridge between your Chromium-based browser and Claude Code. The official "Claude in Chrome" extension connects in some Chromium browsers (Arc, Vivaldi, and others) but automation hangs: its tools are built on the tab groups API, which is missing or broken there. This bridge uses only plain chrome.tabs / chrome.scripting / chrome.debugger, so it works in any Chromium browser that can load an extension.
Demo
Claude driving the browser through the bridge — opening Wikipedia, typing a search, and landing on the article:
Architecture
Claude Code ⇄ (stdio MCP) ⇄ server/index.mjs ⇄ (WebSocket, 127.0.0.1:8929) ⇄ extension in the browser
⇅ (WebSocket /chat)
chat panel (popup on the extension icon)local server and executes its commands (tabs, navigation, page text, screenshots, clicks, form filling). Clicking the icon opens the chat panel (chat.html) — a popup anchored to the extension icon.
- extension/ — an MV3 extension: the service worker keeps a WebSocket to the
Claude Code and proxies them to the extension. It accepts WS connections only from a chrome-extension://… Origin — regular web pages cannot connect. It also serves the /chat channel: panel messages run through the Claude Agent SDK (authenticated via the Claude Code login) with the same browser_* tools; built-in tools (Bash, Read, etc.) are disabled.
- server/ — an MCP server (stdio) that exposes the browser_* tools to
Chat panel
An equivalent of the "Claude in Chrome" side panel: a popup that opens when you click the extension icon (no chrome.sidePanel — it is not supported everywhere). The chat can see the browser: list tabs, read pages, take screenshots, and click.
The panel UI is in English by default and switches to Russian automatically when the browser UI language is Russian. A language selector (Auto / English / Русский) in the bottom bar overrides auto-detection; the on-page badge follows the same choice.
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
Install directly
Runs npx -y chromium-bridge on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add chromium-bridge -- npx -y chromium-bridge
Chromium Bridge: common questions
- Is Chromium Bridge MCP server safe?
- Yes, by our scan: it is graded A (92/100). Read the Chromium Bridge safety report
- How do I install Chromium Bridge?
- It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
- Does Chromium Bridge need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Chromium Bridge maintained?
- The last commit was in the last day (2026-09-25). The latest release is v0.5.3.
- What can I use instead of Chromium Bridge?
- Servers from other publishers that do the same job: CloakBrowser MCP server, Ghostlight MCP server and MCP Browser MCP server. Compare all Chromium Bridge alternatives.
Alternatives to Chromium Bridge
Same job from other publishers: the closest match first, then the best rated.
CloakBrowser MCPPlaywright MCP-compatible browser automation bridge for CloakBrowser Chromium.not reviewedEstablishedB
GhostlightVisible local browser automation in signed-in Chromium, with optional policy and audit.not reviewedGrowingA
MCP BrowserBrowser automation using the user's Chromium session — JS execution, auth, and anti-bot support.not reviewedGrowingB- Session BridgeDrive a browser you are already signed into, through the free T3rnel Browser extension.not reviewedGrowingA
- FeedthroughDebug bridge inside your web app: an agent reads the DOM, console and network. Any browser.not reviewedGrowingA
