Chrome Bridge vs Webdriverio MCP
A side-by-side look at the Chrome Bridge and Webdriverio MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Chrome Bridge for browser automation work as a local process; choose Webdriverio MCP for browser automation as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Chrome Bridge when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
get_status, get_tabs, navigate.
Choose Webdriverio MCP when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- You want tools like
enable_tools, start_session, attach_session.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Browser Automation | Browser Automation |
| Quality signal | 65/100 · Great | 64/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 6 | 43 |
| Directory activity | 0 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 44 | 40 |
| Full listing | View Chrome Bridge | View Webdriverio MCP |
Tools & capabilities
Chrome Bridge tools 44
get_statusStatus of the bridge itself, not of a page: call it when a tool you expect is missing or browser commands fail (connected=false: the extension is not reachable, extension_install gives its Chrome Web Store link). Also reports mode (primary/relay), host, port, server and extension versions, js_evaluation (false under --no-js), write_root, read_root, session_tab_id (the implicit tab), owned_tabs (created by this session), uptime_sec. caps_active and caps_available: a missing tool lives in an inactive cap. enable is the only change it makes: it switches caps on for this session, no restart, and lists the tools added. Optional caps: audits (cookie_audit); visual (inject_css, measure_spacing, emulate_media, viewport_resize); perf (animations, frames, perf_trace, screencast, lighthouse, heap_snapshot); network (http_auth, set_geolocation, track_events); storage (get_storage, set_storage, session_fixture); dom (modify_dom, watch_dom, drag_and_drop); files (save_page, manage_downloads, session_record).get_tabsList every open tab with id, url, title, active flag and mine (created by this session). Find a tab_id when the implicit target is not the one you mean. include_windows adds position, size, state and type of each window — needed before moving or tiling. Session tabs gone since the last call come back once in closed_session_tabs with the reason (closed, window_closed, replaced, closed_by_bridge).navigateNavigate a Chrome tab to a URL and wait for the load; DNS and connection errors fail the call. Without tab_id it reuses the tab this session last navigated or created, else opens a new one rather than taking over the active tab. Returns a preview of interactive elements with refs usable in click/type_text/hover, plus the first console errors and failed requests, if any.screenshotScreenshot of the visible viewport only (PNG), at the current scroll position, or one per viewport preset with presets. Read-only. Activates the tab in the background without stealing window focus, then restores the previous tab. Downscaled to ≤1568px: for fine print, element_screenshot with scale.execute_jsRun JavaScript in the page (MAIN world). Requires the extension's "Allow user scripts" toggle; errors explain setup if disabled. Use it when no dedicated tool fits: extract or extract_table read data, query_dom inspects elements, inject_css restyles, and none of them needs the toggle. A promise is awaited up to timeout. A cut result stays valid JSON and says truncated; save_to writes the whole result to disk.clickClick an element by CSS selector or by a ref (n1, n2…) from get_interactives or navigate. A real pointer sequence: it can submit, open a dialog or navigate — use wait_after. Not idempotent; a native confirm() blocks the bridge: handle_dialogs first. Returns page_changed (url, title and DOM deltas: nodes, text, open, expanded, checked, dialogs, focus): the effect, without a screenshot; when the click opens or reveals something, the refs of the visible interactives follow, no get_interactives needed.type_textPut text into an input, textarea or contenteditable, by selector or ref. Replaces the whole value through the native setter (React/Vue controlled inputs register it) and fires input and change. mode=keys emits keydown/input/keyup per character for autocomplete and masked fields: slower, use it only when mode=set leaves the field empty. Returns value_after; mismatch=true means the field did not keep the value: retry with mode=keys.read_pageRead the page as text (default), markdown, raw HTML, or accessibility tree. Read-only. markdown keeps headings, links and tables at a fraction of the HTML cost. Expensive on big pages: HTML on a large table costs tens of thousands of tokens for data you filter anyway — prefer extract_table/extract for repeated content, get_interactives for click targets.get_page_infoPage metadata: title, url, visibility, doctype, charset, meta tags, scripts, stylesheets, links and forms. visibility=hidden means the window is minimized, covered or in the background: the page does not render (screenshots fail) and its timers slow down. dev.server names a dev server (vite, webpack-dev-server, next, nuxt) and dev.overlay carries the compiler message when an error overlay is open: read it before treating the page as valid. For the text use read_page, for specific elements query_dom, for the bridge itself get_status.query_domQuery DOM elements by CSS selector, returning structure, attributes, bounding rect and, with properties, computed styles. Use it when you already have a selector (no match: count 0); to find one, get_interactives or find_text; for the rule that set a style, get_css_styles.get_css_stylesWhy an element looks the way it does: for each CSS property the winning declaration — selector, stylesheet, rule position, !important, @layer, @media — and the ones it overrides, like the Styles panel of DevTools; query_dom gives the computed value, this gives who set it. Read-only, from the CSSOM: stylesheets of another origin without CORS are opaque and listed by href; user-agent styles, @container and @scope rules are not evaluated. properties narrows the output.read_consoleRead console messages captured since page load, incl. uncaught errors and unhandled rejections. clear deletes the messages it returns, hence not read-only; since=cursor reads only newer ones without deleting, and failed requests are in monitor_network.- +32 more on the listing page
Webdriverio MCP tools 40
enable_toolsAdd a group of tools: `mocks`, `cookies`, `device`, `extensions`, `attach`, `elements`, `cloud-appsstart_sessionStart a browser, local Electron application, or mobile app session; `attach: true` retains the existing Chrome CDP connection modeattach_sessionAttach to an existing remote WebDriver/Appium session by ID without creating a new sessionlaunch_chromeLaunch a new Chrome instance with remote debugging enabled (for use with `start_session({ attach: true })`)close_sessionClose or detach from the current session (supports `detach: true` to disconnect without terminating)emulate_deviceEmulate a mobile/tablet device preset (viewport, DPR, UA, touch); requires BiDi sessionopen_web_extensionInstall a web extension through WebDriver BiDi and open one of its extension pages so normal page tools can drive its UInavigateNavigate to a URL. In browsers the result shows the new page's interactive elements with refssnapshotThe page as an accessibility tree with refs (`button "Save" [ref=e3]`), interactive elements by default (plain text is dropped, `full: true` shows it); pass refs to `perform_actions` for several steps; `find` returns only the parts containing a text (link targets included), `full: true` adds all te…get_elementsGet visible, interactable elements with bounds. Supports `inViewportOnly` (default: true) and `includeContainers` (default: false). Mobile and Electron; listed after `enable_tools({ groups: ['elements'] })`, use `snapshot` firstget_accessibility_treeGet the accessibility tree with roles, names, and selectors. Electron-only; browsers use `snapshotget_screenshotTake a screenshot of the current page or screen (base64-encoded, auto-resized to max 2000px / 1MB)- +28 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Chrome Bridge
{
"mcpServers": {
"chrome-bridge": {
"command": "npx",
"args": [
"-y",
"chrome-bridge-mcp"
]
}
}
}
Webdriverio MCP
{
"mcpServers": {
"webdriverio-mcp": {
"command": "npx",
"args": [
"-y",
"@wdio/mcp@latest"
]
}
}
}
Frequently asked questions
Chrome Bridge is categorized under Browser Automation and uses a local stdio subprocess. Webdriverio MCP belongs to Browser Automation and uses a local stdio subprocess. Pick Chrome Bridge for browser automation work and Webdriverio MCP for browser automation.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Chrome Bridge is listed as free. Auth: no auth required. Webdriverio MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add chrome-bridge and webdriverio-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Chrome Bridge has a quality signal of 65/100 (Great) with 0 views, 0 installs and 6 GitHub stars. Webdriverio MCP has 64/100 (Good) with 3 views, 0 installs and 43 GitHub stars.