Agent Chrome

dev.agentchromePublished by agentchrome.devOfficial publisherv0.1.0Updated Nov 4, 2026

Let AI agents use your real, signed-in Chrome: tabs, clicks, forms, screenshots and video.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingBrowser Automation

Overview

AI-generated overview

Chrome extension plus remote MCP server that lets AI agents drive your real, signed-in Chrome: tabs, clicks, forms, screenshots and video.

What you can do
  • Open, close, switch and group tabs, navigate, and list or select among paired Chrome profiles
  • Click, type, drag, scroll, hover and fill forms by coordinates or element refs, and read the page's accessibility tree or text
  • Capture viewport or full-page screenshots, record MP4/WebM clips or GIFs, and save artifacts
  • Run JavaScript in the page and read console messages and network requests
  • Upload local files into inputs and drop zones, handle alert/confirm/prompt dialogs, and wait for text, selectors or URLs
  • Search browsing history when explicitly enabled
When to use it
Useful when an agent should work inside the browser you are already logged into — testing a web app, filling in real forms, capturing screenshots or demo recordings — instead of a fresh headless browser. It also suits chat apps such as Claude or ChatGPT that connect to remote MCP servers over OAuth.
Requirements
A remote endpoint at agentchrome.dev/mcp with OAuth (or a bearer account key). The full setup needs Node.js 18 or newer, Google Chrome, and the Agent Chrome extension loaded unpacked in each Chrome profile, paired with a single-use code. A local mode runs the server on 127.0.0.1 and needs no cloud.
Before you install
The agent acts inside your signed-in browser profiles, so it can reach logged-in accounts, submit forms, upload local files and download content. Account keys and device tokens are stored in agent config files and in a local config file; prefer OAuth to avoid secrets in configs. Screenshots and recordings saved to the cloud go to third-party storage behind unguessable links and are deleted after 7 days. History access is off by default; per-site prompts and a block list are available.

Installation

In SourceWeft

  1. Open Agent Chrome in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/dev.agentchrome%2Fagentchrome/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "agent-chrome": {
      "type": "http",
      "url": "https://agentchrome.dev/mcp"
    }
  }
}

README

[Agent Chrome logo]

agentchrome

Let your coding agents use the Chrome you already use.

[GitHub stars] [MIT license] [Hosted on Cloudflare]

Install · Let your agent install it · What it does · Tools · Security

[Star on GitHub]

Agent Chrome is a Chrome extension and an MCP server that let coding agents use your real, signed-in Chrome profiles. It works with Claude Code, Codex, Gemini CLI, Antigravity, Grok, Muse, Cursor, opencode and any other MCP client. Each agent works in its own tab group, and a blue border and an animated cursor show what it is doing. It can take screenshots and record video clips, and you can connect several Chrome profiles at once. The server runs on Cloudflare, or locally on your machine.

[Claude Code searching Wikipedia in Chrome: a blue border around the page, an animated cursor with the Claude Code logo, and a status pill with a Stop button]
What you see while an agent works. This clip was recorded by the extension itself (MP4).

If it's useful to you, please star the repo. It helps other people find it.

Install

You need Node.js 18 or newer and Google Chrome.

1. Run the installer

sh
curl -fsSL https://agentchrome.dev/install | sh

In one pass, the installer:

  1. Creates your account and saves the key to ~/.config/agentchrome/config.json with chmod 600.
  2. Adds an MCP server named agentchrome to every agent it finds, in that agent's user-level config (table below).
  3. Writes the agentchrome skill once, to ~/.agents/skills/agentchrome, and symlinks it into each agent's skills folder.
  4. Unpacks the extension to ~/.agentchrome/extension.
  5. Prints a pairing code and copies it to your clipboard.

To keep everything on your machine with no cloud at all, add --local. See Local mode.

2. Load the extension, once per Chrome profile

The installer opens chrome://extensions and shows the folder in Finder for you.

  1. In chrome://extensions, turn on Developer mode.
  2. Click Load unpacked and choose ~/.agentchrome/extension. Run agentchrome extension --path to print the full path.
  3. Pin Agent Chrome, click it, paste the pairing code and press Connect.

To add another profile (Work, Personal, a client's), switch to that profile, load the same folder, and run agentchrome pair for a new code. Each profile appears as its own browser in list_browsers.

3. Use it

Ask any agent:

Use agentchrome to open news.ycombinator.com, screenshot it, and record a short clip scrolling the front page.

Or let your agent install it

Paste this into Claude Code, Codex or any other coding agent:

Install agentchrome for me by following https://github.com/ShadowWalker2014/agentchrome/blob/main/AGENT_INSTALL.md

The agent runs the installer, then tells you the one step only you can do: loading the extension in Chrome and pasting the code.

Use it from Claude.ai or ChatGPT

The server is a standard remote MCP server with OAuth, so chat apps can use it as a connector. You don't need the command line tool for this.

Claude (claude.ai, Claude Desktop, Cowork): open Customize > Connectors > Add custom connector, enter https://agentchrome.dev/mcp and press Connect.

ChatGPT: turn on Developer mode under Settings > Apps & Connectors > Advanced, then create a connector with the same URL and choose OAuth.

A sign-in page opens. Paste your account key, or press Create an account if you don't have one. Then ask in chat: "Connect my Chrome." The assistant calls pairing_code and walks you through loading the extension and pasting the code.

Where each agent is configured

AgentConfig written (user level)Format
Claude Codeclaude mcp add --scope user (~/.claude.json)http with an Authorization header
Codex~/.codex/config.toml[mcp_servers.agentchrome] with url and http_headers
Gemini CLI~/.gemini/settings.jsonhttpUrl and headers
Antigravityagy mcp add and ~/.gemini/antigravity/mcp_config.jsonserverUrl and headers
Grokgrok mcp add --scope user (~/.grok/config.toml)http with a header
Muse~/.config/muse/settings.jsontype: "streamable-http"
Cursor~/.cursor/mcp.jsonurl and headers
opencode~/.config/opencode/opencode.jsontype: "remote"
Windsurf~/.codeium/windsurf/mcp_config.jsonserverUrl and headers

The installer backs up every JSON or TOML file it edits as <file>.bak-agentchrome. The skill is linked into ~/.claude/skills, ~/.codex/skills, ~/.gemini/skills, ~/.gemini/antigravity/global_skills, ~/.cursor/skills and ~/.config/opencode/skills.

Gemini CLI note: Gemini turns off every MCP server in folders you haven't trusted, so gemini mcp list shows "Disabled" there. Trust the folder with /permissions inside Gemini, and the server turns on.

Pick agents, or use OAuth instead of a key

sh
agentchrome install claude codex grok   # only these agentsagentchrome install --oauth             # no secret in config files; each agent signs in through the browser

With OAuth, agents that support MCP sign-in (Claude Code, Codex, Gemini CLI and others) open a sign-in page on first use. Paste your account key once (agentchrome key prints it) and the agent receives short-lived tokens, refreshed for 90 days.

Add it by hand

sh
claude mcp add --scope user --transport http agentchrome https://agentchrome.dev/mcp \  --header "Authorization: Bearer $(agentchrome key)"
codex mcp add agentchrome --url https://agentchrome.dev/mcp --bearer-token-env-var AGENT_CHROME_MCP_KEY

Any MCP client that speaks Streamable HTTP works. Use https://<server>/mcp with a bearer key, or point it at the URL and let OAuth discovery do the rest.

What it does

[An agent typing into Wikipedia's search box: blue border, agent cursor labelled Claude Code with its logo, status pill][A clean recording: normal cursor, no border or labels]
You can see what the agent is doing. A blue border goes around the page, a pill shows which agent is working with a Stop button, and the agent's own cursor glides to each target. The cursor turns into a hand over links and an I-beam over text, and carries the agent's logo and name. Your own mouse is never moved.Recordings look like a person using the page. record leaves out the border, the pill and the name tag, and draws a normal cursor (MP4). Pass cursor: "agent" to keep the indicators, or "hidden" for no cursor.
[The toolbar popup: connected profile, Claude Code and Codex sessions with Pause buttons, settings][The welcome page with three setup steps and a pairing-code field]
Every agent gets its own tab group. The popup lists which agents are active, and lets you pause one or stop them all.Setup takes a minute. Load the extension, paste the code from the installer, and the profile is connected.

It also handles the parts of real websites that usually break browser agents:

  • Drag and drop works for native HTML5 drag events (Trello-style boards, file drop areas) and for pointer-based sliders and sortable lists.
  • File uploads never open the native file picker. The agent can pass real file paths from your computer, or file contents. If a click tries to open the picker, it is held back and the agent is told to fill it.
  • alert, confirm, prompt and "Leave site?" dialogs are reported to the agent instead of freezing it. A navigation the agent asks for leaves an unsaved page and says so.
  • New tabs opened by a link join the agent's group, and downloads are reported in the result of the click that caused them.
  • Pages that fail are explained: HTTP errors such as 404, DNS failures, crashed tabs, chrome:// pages that extensions can't touch, and file:// pages that need permission.
  • If you press Cancel on Chrome's "started debugging this browser" bar, every agent stops and is told why.

CLI

CommandWhat it does
agentchrome setup [--server URL] [--key KEY] [--local]Creates an account or signs in, installs into agents, links the skill, unpacks the extension, prints a pairing code
agentchrome pairPrints a new single-use pairing code, valid for 15 minutes
agentchrome statusShows the account, paired browsers with online state, and which agents are configured
agentchrome install [ids] [--oauth] / uninstall [ids]Adds or removes the MCP server and the skill
agentchrome revoke <browser-id>Removes a paired Chrome profile; it disconnects immediately
agentchrome rotate-keyReplaces your account key and rewrites every agent config
agentchrome keyPrints your account key
agentchrome serve [--install]Runs the local server; --install starts it at login with launchd
agentchrome extension [--path]Unpacks the extension and shows how to load it

Tools

The tool names match Claude in Chrome, so prompts and skills written for it work unchanged.

ToolWhat it does
tabs_contextLists this session's tab group and tabs; creates a group with a tab if there is none. all: true lists every tab
tabs_create / tabs_close / tabs_selectOpens, closes or switches tabs inside the session group; adopt pulls a user tab into the group
tab_groupsLists, creates, renames, recolors, collapses, moves or ungroups Chrome tab groups
navigateLoads a URL and waits for it; also takes back, forward and reload
computerscreenshot, left_click, right_click, middle_click, double_click, triple_click, hover / mouse_move, left_click_drag (HTML5 and pointer drags; start_ref or start_coordinate), type, key (combos like cmd+a), scroll, scroll_to, wait, zoom. Accepts coordinates or element refs, plus modifiers
screenshotCaptures the viewport, or with fullPage: true one long image of the whole page. It scrolls through first so lazy images load, and stitches apps that scroll inside a panel, such as Gmail, Notion and dashboards. JPEG or PNG; save: true returns a download link
read_pageReturns an accessibility tree with ref_N handles; filter: "interactive", ref_id to read a subtree, viewportOnly
findFinds elements from a plain-language description and returns refs with coordinates
form_inputSets inputs, selects, checkboxes, radios and contenteditable fields by ref
get_page_textReturns the readable text of the article or main content
javascript_toolRuns JavaScript in the page and returns the last expression; supports await and works under strict CSP
read_console_messages / read_network_requestsReturns console logs and errors, and requests with status and timing; can include response bodies
file_upload / upload_imageFills a file input or drop zone with local file paths, base64 data, a URL or a screenshot, without the native file picker; leave out ref to fill a picker that a click tried to open
recordRecords an MP4 or WebM clip of the tab and returns a link. cursor: natural (default, no indicators), agent or hidden; showClicks adds click ripples. action: "scroll" makes a smooth scrolling video of the whole page in one call
gif_creatorRecords an animated GIF and returns it inline
wait_forWaits until text appears or disappears, a CSS selector matches, or the URL matches
handle_dialogAccepts or dismisses alert, confirm and prompt dialogs
resize_windowResizes the browser window
history_searchSearches browsing history, only when you turn it on in the popup
list_browsers / select_browserLists paired Chrome profiles and picks one; every tool also takes browser: "<name or id>"

Feature parity

Claude in ChromeCodex Chrome extensionagentchrome
Works with any MCP agentClaude onlyCodex onlyyes
Tab group per agent sessionyesyesyes, and the agent can rename and recolor it
Several Chrome profiles at onceone connected browser at a timeone profileyes, all at once
Screenshotsyesyesyes, including zoom and long full-page images (also inside scrolling panels)
Video recordingGIFnoMP4 or WebM, plus GIF and one-call scrolling videos
Console, network, JavaScriptyesyesyes
Per-site permission promptyesyesyes, off by default; also a block list
Visible "agent at work" indicatoryesyespulsing border, status pill and Stop button
Animated agent cursornoyesyes, with the agent's logo; a hand over links
Clean recordings without indicatorsnonoyes
Runs headless from scripts (codex exec, claude -p)nonoyes, since it's a remote MCP server
Self-hostablenonoyes: Cloudflare or local

Local mode

sh
curl -fsSL https://agentchrome.dev/install | sh -s -- --localagentchrome serve --install    # starts the local server now and at every login (macOS)

The server listens only on 127.0.0.1:47823 and rejects requests from web pages. In the extension popup, open Server and set it to http://127.0.0.1:47823 before connecting. Screenshots and recordings are saved to ~/.agentchrome/artifacts.

Self-host on Cloudflare

sh
git clone https://github.com/ShadowWalker2014/agentchrome && cd agentchromepnpm installnpx wrangler loginsh scripts/deploy-cloudflare.sh my-agentchrome

The script creates a D1 database, a KV namespace and an R2 bucket, runs the migrations, deploys the Worker with its Durable Object, sets a session secret, and prints your own install line (curl -fsSL https://my-agentchrome.<you>.workers.dev/install | sh). After you create your own account, set SIGNUP_MODE to "closed" so nobody else can sign up.

It runs comfortably on the Workers free tier for personal use. Durable Objects hibernate between calls, so an idle extension connection costs nothing.

Security

  • Keys: account keys (acm_sk_…) and device tokens (acm_dt_…) are 256-bit random values. The server stores only their SHA-256 hashes. The local config file is chmod 600.
  • Pairing: a browser joins your account only with a single-use 10-character code that expires after 15 minutes, created by someone who already holds the account key. Each Chrome profile gets its own device token, which you can revoke on its own.
  • OAuth 2.1: PKCE (S256), dynamic client registration, refresh-token rotation and RFC 9728 discovery, using @cloudflare/workers-oauth-provider.
  • Isolation: each account has its own Durable Object. MCP session ids are signed with HMAC and bound to the account, so one account cannot use another's session.
  • Recordings: screenshots and videos you choose to save go to R2 behind unguessable 144-bit links and are deleted after 7 days.
  • Control in the browser: the Stop button on the page or in the popup pauses every agent at once. You can also ask before each new site, block sites, and keep history access off, which is the default.
  • Rate limits: sign-up, pairing and the sign-in page are rate-limited per IP address.
  • Untrusted pages: the skill and the server instructions tell agents never to follow instructions found inside web pages.

Please report vulnerabilities through a private GitHub security advisory.

How it works

Claude Code ─┐                    ┌──────────────────────────────┐        ┌─ Chrome "Work" profileCodex ───────┤  MCP over HTTPS    │ Cloudflare Worker            │  WSS   │   (extension, paired)Gemini ──────┼──────────────────► │  /mcp  OAuth 2.1 or API key  │ ◄────► ├─ Chrome "Personal" profileGrok, Muse … ┘                    │  Durable Object per account  │        └─ …                                  └──────────────────────────────┘

The extension keeps one WebSocket open to the server. The server runs on Cloudflare Workers with one Durable Object per account. Each MCP session gets its own tab group in every paired profile. Tools that act on a page use the Chrome debugger protocol for input, screenshots, console and network logs. A small content script provides element refs, the accessibility tree, the overlay and the agent cursor.

Development

sh
pnpm installpnpm --filter @agentchrome/server exec wrangler d1 migrations apply agent-chrome-mcp --localpnpm dev:server                         # Worker on http://127.0.0.1:8787node scripts/build-all.mjs              # extension, CLI and public assetspnpm test:e2e                           # end-to-end tests: real Chromium, the extension and the MCP SDK clientnode --test tests/e2e/edge.test.mjs     # drag and drop, file pickers, dialogs, new tabs, downloads, errorsACM_SERVER=https://… pnpm test:e2e      # the same suite against a deployed serversh tests/e2e/local.sh                   # the same suite against local mode

See AGENTS.md for the architecture and the rules for contributors.

Star history

[Star history chart for agentchrome]

If agentchrome saves you time, please star it. Stars help other developers find the project.

[Star on GitHub]

License

MIT

Source: README.md at commit aa04500

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

1
  1. v0.1.0LatestNov 4, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts