SeleniumBase MCP Server: Setup for Claude Desktop, Claude Code and Other Apps

• Opens a stealth Chrome browser

  Launches a persistent Chrome session driven over Chrome DevTools Protocol, with no WebDriver, to reduce bot detection. Reuses the session if one is already open.

  Try: “Open a browser and go to example.com.”

  Network · start_browser

• Closes the browser session

  Shuts down the current browser session.

  Try: “Close the browser.”

  Write · close_browser

• Navigates to a web address

  Opens a URL in the current browser session.

  Try: “Go to https://news.example.com.”

  Network · open_url

• Goes back, forward or reloads

  Navigates browser history: back, forward or refresh.

  Try: “Go back one page.”

  Write · manage_history

• Reads the current page's title, URL and state

  Returns information about the page currently open in the browser.

  Try: “What page am I on right now?”

  Read · get_page_info

• Finds elements on the page

  Locates elements on the page by a selector.

  Try: “Find all the product links on this page.”

  Read · find_elements

• Reads text or HTML from the page

  Returns the text or HTML content of the page or an element.

  Try: “Get the main article text from this page.”

  Read · get_content

• Reads an element's attributes

  Returns the attribute values of one or more elements.

  Try: “What is the href of the first link?”

  Read · get_attributes

• Checks whether something is true on the page

  Checks a condition on the page, such as whether an element is visible.

  Try: “Is the login button visible yet?”

  Read · check_if_condition

• Clicks an element

  Clicks an element matched by a selector.

  Try: “Click the Accept cookies button.”

  Write · click_element

• Hovers, clicks or drags on the page

  Hovers over an element, or hovers then clicks or drags to reveal and act on hidden targets.

  Try: “Hover over the menu and click Settings.”

  Write · hover_action

• Types text into a field

  Types text into an input field on the page.

  Try: “Type my search term into the search box.”

  Write · type_text

• Picks an option from a dropdown

  Selects an option in a dropdown list.

  Try: “Select Canada from the country dropdown.”

  Write · select_option

• Moves keyboard focus to an element

  Sets keyboard focus on an element, without clicking it.

  Try: “Focus the search input.”

  Write · focus_element

• Waits until something happens on the page

  Waits up to a timeout for a condition, such as an element appearing.

  Try: “Wait for the results list to load.”

  Read · wait_for_condition

• Checks a condition and reports pass or fail

  Asserts a condition about the page and reports whether it held, for test-style checks.

  Try: “Assert that the page title contains Checkout.”

  Read · assert_condition

• Reads, sets or deletes browser cookies

  Gets, sets or clears cookies for the current browser session.

  Try: “Set a cookie to skip the welcome banner.”

  Delete · manage_cookies

• Reads or writes local and session storage

  Gets, sets or clears values in the page's local or session storage.

  Try: “Clear the saved login token from local storage.”

  Delete · manage_storage

• Scrolls the page

  Scrolls the page or an element by an amount or to a target.

  Try: “Scroll to the bottom of the page.”

  Write · scroll_page

• Resizes or maximizes the browser window

  Changes the size or state of the browser window.

  Try: “Maximize the browser window.”

  Write · manage_window

• Opens, closes or switches browser tabs

  Manages browser tabs: open a new one, close one or switch to one.

  Try: “Open a new tab and go to the pricing page.”

  Write · manage_tabs

• Attempts to solve a CAPTCHA on the page

  Tries to solve a visible CAPTCHA challenge (Cloudflare Turnstile, reCAPTCHA, hCaptcha, DataDome Slider or FriendlyCaptcha) with a click or drag. The tool description says it does not guarantee success.

  Try: “Try to solve the CAPTCHA on this page.”

  Write · solve_captcha

• Saves the page or a screenshot

  Saves the current page's HTML or a screenshot to a file.

  Try: “Save a screenshot of this page.”

  Write · save_page

• Runs JavaScript on the page

  Runs any JavaScript in the page, with full access to the page's scripts, DOM and storage. The source notes this can read, write, navigate or destroy data.

  Try: “Run a script that counts how many images are on the page.”

  Delete · run_javascript

Watch out for

• One tool runs arbitrary JavaScript on the page

  run_javascript's own comment says it can read, write, navigate or destroy data on the page with no annotation limiting it. Restrict it to sites you trust. github.com

• It can read, set and clear cookies and storage

  manage_cookies and manage_storage can read and delete site data, including login state. github.com

• It opens a real browser onto the open web

  start_browser and open_url send a real browser to any address you or the assistant gives it. github.com

• CAPTCHA solving is not guaranteed

  solve_captcha tries a click or drag on common CAPTCHA widgets; the tool's own description says success is not guaranteed. github.com

Security advisories