SeleniumBase

About

SeleniumBase MCP exposes the SeleniumBase Python framework to an AI assistant for browser automation, end-to-end testing and web scraping. It uses CDP Mode, which is designed to avoid bot-detection and can handle CAPTCHAs such as Cloudflare Turnstile.

It runs locally over stdio from the seleniumbase PyPI package, started with uvx. No API key is listed. It drives a local Chromium-based browser such as Chrome, Chrome-for-Testing, Edge or Brave.

What you can do

• Drive a Chromium browser: navigate, click, type and select elements
• Scrape page content and element text from live sites
• Run end-to-end tests of web applications
• Use CDP Mode to reduce bot-detection on automated sessions
• Solve CAPTCHAs that are not bypassed automatically
• Save pages as PDF

Tools

Local servers list their tools once they’re running, so we can’t show them here. Look for the list in its documentation; your client shows them after you add it.

Example prompts

• Open example.com and list the headlines on the page

• Log in to the demo shop and check that checkout completes

• Scrape the titles from this Hacker News user's submissions

• Search Google for SeleniumBase and save the result page as a PDF

Set up

Every client starts SeleniumBase on your machine with the same command. Pick yours; the page remembers your choice.

claude mcp add --transport stdio seleniumbase -- uvx seleniumbase

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

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

code --add-mcp '{"name":"seleniumbase","type":"stdio","command":"uvx","args":["seleniumbase"]}'

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

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

codex mcp add seleniumbase -- uvx seleniumbase

[mcp_servers.seleniumbase]
command = "uvx"
args = ["seleniumbase"]

gemini mcp add seleniumbase uvx seleniumbase

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

Embed

Show SeleniumBase in a README or on your site. Each embed links to this page, uses the server’s own install command, and sets no cookies. How embeds work

The card, the iframe and the JSON are in English. Add ?lang=it, fr, de or es to their address for another language.

README badge Website card iframe JSON AI prompt

README badge

Markdown

[![SeleniumBase on mcp.tc](https://mcp.tc/i/seleniumbase/badge.svg)](https://mcp.tc/i/seleniumbase)

HTML

<a href="https://mcp.tc/i/seleniumbase"><img src="https://mcp.tc/i/seleniumbase/badge.svg" alt="SeleniumBase on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML

<script src="https://mcp.tc/w/seleniumbase.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/seleniumbase" title="SeleniumBase on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, install command, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/seleniumbase.json

What each field means

AI prompt

Paste this into an AI coding assistant, such as Claude Code or Cursor, and it adds the SeleniumBase card to your site.

Markdown

Add the mcp.tc card for SeleniumBase, an MCP server, to my website. It is one static script: no build step, no package to install, no cookies.

Put this tag where the card should appear. The card renders right before it:

```html
<script src="https://mcp.tc/w/seleniumbase.js" async></script>
```

To show the card somewhere else, put this placeholder there and load the same script once, for example before `</body>`. Keep the link inside: visitors without JavaScript see it.

```html
<div data-mcptc="seleniumbase"><a href="https://mcp.tc/i/seleniumbase">SeleniumBase on mcp.tc</a></div>
```

Options:
- `data-theme="light"` or `"dark"` on the tag or the placeholder fixes the colors. Without it, the card follows the visitor’s light or dark mode.
- `data-size="compact"` gives a smaller card without the tagline.
- The CSS variable `--mcptc-max-width` on the placeholder or a parent sets the width (default `520px`).
- `?lang=` on the script URL sets the card’s language: `en`, `it`, `fr`, `de` or `es`.

If the site has a Content Security Policy, allow `script-src https://mcp.tc` and `img-src data:` (the icon is inline).

For a README or other Markdown docs, use the badge instead:

```markdown
[![SeleniumBase on mcp.tc](https://mcp.tc/i/seleniumbase/badge.svg)](https://mcp.tc/i/seleniumbase)
```

Reference: https://mcp.tc/embed

Change history

This server runs on your computer, so we follow its PyPI package: each new version shows up here, with edits by its owner.

1. 8 Oct 2026, 04:21 UTC, Automatic check

   New version 4.55.2 (was 4.55.1). Read from PyPI.

2. 7 Oct 2026, 04:20 UTC, Automatic check

   Tracking started: version 4.55.1.

FAQ