SeleniumBase MCP

Name: SeleniumBase MCP
Author: seleniumbase

by seleniumbaseversion 4.57.1i★ –iRuns on your computer

Registry nameio.github.seleniumbase/seleniumbase

Install

Overview

Description from the maker (original English)

Stealthy browser automation, testing, and web-scraping via CDP Mode.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Web & browsers

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "seleniumbase": {
      "command": "uvx",
      "args": [
        "seleniumbase"
      ]
    }
  }
}

Run this in your terminal

claude mcp add seleniumbase -- uvx seleniumbase

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "seleniumbase": {
      "command": "uvx",
      "args": [
        "seleniumbase"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "seleniumbase": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "seleniumbase"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account seleniumbase, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Web & browsersi

More stars than 0% of the other 880 servers in this category
Published to the registry more recently than 94% of the other 880 servers in this category
Basic checks equal to or better than 100% of the other 880 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is SeleniumBase MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (4.57.1) reached the registry 2 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Browser Use, Chrome DevTools MCP, MCP Server Browser

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

All-in-one Browser Automation Framework: Web Crawling / Testing / Scraping / Stealth

📗 API | 📘 Stealth API | 🔠 Syntax Formats | 🔴 Recorder | 📊 Dashboard

👁️ How | 🚝 Migration | 🎭 Stealthy Playwright | 🛂 MasterQA | 🚎 Tours

⚙️ High-level architecture and special modes:

🐙 CDP Mode bypasses bot-detection with Chromium-based browsers. 🎭 Stealthy Playwright Mode extends CDP Mode's stealth to Playwright.

pip install seleniumbase for the main framework. pip install playwright for the optional integration.

🧪 End-to-End Testing examples are located in ./examples/.

🐙 Stealthy CDP Mode examples are located in ./examples/cdp_mode/.

🎭 Stealthy Playwright examples are located in ./examples/cdp_mode/playwright/.

[!NOTE]

Examples that start with test run with `pytest`.

Other examples run directly with raw `python`.

📝 This example uses seleniumbase sb_cdp (*Pure CDP Mode*): (It shows some basic methods and bypasses a Cloudflare Turnstile)

from seleniumbase import sb_cdp

sb = sb_cdp.Chrome() # Launches a stealth browser sb.goto("https://www.planetminecraft.com/account") sb.type('[name="email"]', "Test123") sb.type('[name="password"]', "Pass") sb.click("input#autologin") # Unchecks a checkbox sb.solve_captcha() # (as backup if not automatic) sb.assert_element('input[name="login"]') sb.assert_element_not_visible("input[disabled]") sb.sleep(1) # (only to slow down the live demo) sb.quit() # (otherwise quits automatically at end)

(Note that the click action only unchecked the "Stay signed in" checkbox.)

✅ sb.solve_captcha() handles CAPTCHAs that aren't bypassed automatically. (If called when there's no CAPTCHA on the page, then nothing happens / no-op.)

ℹ️ sb.assert_* methods wait up to 7 seconds for the expected condition. (Raises an exception if the condition isn't met in time.)

📝 This script searches Hacker News via Algolia. Then prints items and saves to PDF:

from seleniumbase import sb_cdp

sb = sb_cdp.Chrome(fast=True) sb.goto("https://hn.algolia.com/?query=seleniumbase") elements = sb.find_elements("div.Story_title > a") for element in elements: print("--> " + element.text) sb.save_as_pdf("sb_news.pdf", folder="./downloaded_files/") print("*** PDF saved to: ./downloaded_files/sb_news.pdf")

python raw_cdp_yc_news.py

📝 This script bypasses Cloudflare's challenge page with UC + CDP Mode:

from seleniumbase import SB

with SB(uc=True, test=True, locale="en") as sb: sb.activate_cdp_mode() sb.goto("https://gitlab.com/users/sign_in") sb.sleep(2) sb.solve_captcha() sb.highlight('h1:contains("GitLab")') sb.highlight('button:contains("Sign in")')

python raw_gitlab.py

🌐 CLI Options for Supported Chromium Browsers

💡 You can set which Chromium browser to use via command-line parameters:

python SCRIPT.py --chromium  # Use the unbranded Chromium browser

python SCRIPT.py --cft # Use Chrome-for-testing python SCRIPT.py --edge # Use Microsoft Edge python SCRIPT.py --brave # Use Brave browser

Google Chrome is the default browser. Only unbranded Chromium and Chrome-for-Testing get downloaded automatically if not already present on the system.

The Chromium browser can also be set via method args, eg: cft=True, use_chromium=True, browser="edge", browser="brave", etc. Eg:

sb = sb_cdp.Chrome(use_

Only the beginning is shown; read the rest in the repo

SeleniumBase MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Web & browsersi

Common questions

Alternatives

Browser Use

Chrome DevTools MCP

MCP Server Browser

README from the maker