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Glama

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
CDP_PORTNoThe Chrome DevTools Protocol port to connect to (default is 9222).
PYTHONPATHNoPath to the fast-browser-mcp directory (used to locate the Python module when not installed as a package).

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": true
}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}

Tools

Functions exposed to the LLM to take actions

NameDescription
browser_connectA

Dynamically switch or reconnect CDP connection to a specified host and port (e.g. switch between Chrome on 9222 and Antigravity IDE on 43275).

browser_launchC

Launch an isolated Chrome or Chromium browser instance with CDP remote debugging enabled.

browser_close_browserB

Terminate the managed browser instance if one was launched via browser_launch.

browser_wait_for_downloadB

Wait for a file download to complete in the download directory without .crdownload extension.

browser_export_sessionA

Export current session state (all cookies, localStorage, sessionStorage) as structured JSON.

browser_import_sessionC

Import session state (cookies, localStorage, sessionStorage) into the browser.

browser_list_tabsA

List all open browser pages/tabs with their title, URL, and ID.

browser_select_tabB

Select and connect to an open browser tab by query (matching URL or title).

browser_new_tabC

Open a new browser tab with the specified URL.

browser_close_tabA

Close a browser tab by target ID, or close current tab if ID is omitted.

browser_reloadB

Reload the current page.

browser_snapshotB

Capture a compact, token-efficient snapshot of the active page showing interactive elements with numbered references (@1, @2, ...), smart labels (icons/images/CSS backgrounds), headings, and accessible iframes. Supports scoping to a CSS selector and viewport-only filtering.

browser_batchB

ULTRA-FAST MULTI-ACTION BATCH EXECUTION: Execute a sequence of browser actions in a single round-trip without model latency. Supports: 'navigate', 'click', 'double_click', 'right_click', 'drag_and_drop', 'mouse_move', 'fill', 'press_key', 'scroll', 'select_option', 'hover', 'wait', 'eval', 'extract', 'snapshot', 'screenshot' (with full_page and clip selector support), 'pdf', 'get_html', 'set_viewport', 'set_user_agent', 'set_headers', 'block_urls', 'set_geolocation', 'set_timezone', 'get_storage', 'clear_cache', 'clear_cookies', 'set_cookie', 'export_traffic', 'console_logs', 'upload_file', 'window', 'system_page', 'extensions', 'extension_action', 'set_download_path', 'grant_permissions', 'system_info'.

browser_evalB

Evaluate arbitrary JavaScript in the active page context and return the result.

browser_clickC

Click an element by its snapshot reference (@1, @2, ...) or CSS selector.

browser_fillB

Fill text into an input element by its snapshot reference (@1, @2, ...) or CSS selector. Auto-detects contenteditable and rich text editors.

browser_press_keyB

Press a keyboard key (e.g. Enter, Escape, Tab, Backspace, ArrowDown, ArrowUp, Space).

browser_scrollC

Scroll the page or scroll an element into view.

browser_mouseC

Advanced mouse operations: right-click, double-click, move, or drag-and-drop.

browser_get_htmlB

Extract full outerHTML of the entire document or save to file.

browser_print_to_pdfC

Print the current page to a PDF file.

browser_set_headersC

Inject custom HTTP headers into all outgoing requests from the browser.

browser_set_user_agentC

Override User-Agent string for the browser tab.

browser_block_urlsB

Block specific URL patterns (e.g. *.png, analytics, ads) to speed up page loading.

browser_set_cookieC

Set a cookie in the browser.

browser_clear_storageB

Clear browser cache and/or cookies.

browser_emulate_environmentC

Emulate geolocation coordinates and/or timezone.

browser_console_logsB

View captured JavaScript console logs (console.log, console.error, console.warn) and unhandled page exceptions.

browser_get_storageB

Inspect and dump all items from localStorage, sessionStorage, and optionally CacheStorage for the current origin.

browser_export_trafficB

Export all captured network requests, responses, headers, POST data, and WebSocket frames to a structured JSON file or standards-compliant HAR 1.2 file.

browser_set_viewportC

Set browser viewport dimensions and mobile device emulation.

browser_upload_fileC

Upload one or more files to an element via CDP.

browser_network_requestsA

List captured HTTP/XHR/Fetch/WebSocket network requests for reverse engineering. Filter by type or URL pattern.

browser_network_get_responseA

Retrieve full request details (headers, POST payload) and response body (JSON/HTML) for a specific request ID.

browser_websocket_messagesB

List captured WebSocket frames (sent/received messages in real-time). Essential for game battle packets and real-time reverse engineering.

browser_get_cookiesB

Retrieve all cookies for the current tab (auth tokens, session IDs).

browser_navigateC

Navigate active tab to a URL.

browser_screenshotB

Capture screenshot of current page, entire scrollable page, or a specific element.

browser_windowB

Manage browser window: inspect bounds or set state ('normal', 'minimized', 'maximized', 'fullscreen') and dimensions/position.

browser_open_system_pageA

Open or switch to a Chrome system page: 'settings', 'extensions', 'downloads', 'history', 'bookmarks', 'flags', 'version', 'gpu', 'net-internals'.

browser_list_extensionsA

List all installed Chrome extensions with their IDs, names, versions, enabled status, and options URLs.

browser_extension_actionB

Perform management action on a Chrome extension: enable, disable, reload, open options, or open popup.

browser_system_infoB

Get comprehensive browser information: Chrome version, V8 version, User-Agent, protocol version, environment validation, and memory performance metrics.

browser_set_download_pathB

Set browser download directory and behavior (automatically allow downloads without popup prompt).

browser_grant_permissionsC

Grant or reset browser permissions (e.g. notifications, clipboardReadWrite, geolocation) for an origin.

browser_backB

Navigate backward in browser history (back button).

browser_forwardC

Navigate forward in browser history (forward button).

browser_historyB

Retrieve tab navigation history entries and current index.

browser_add_preload_scriptA

Inject custom JavaScript to run on every new document before page scripts load (hooks / Tampermonkey).

browser_remove_preload_scriptA

Remove a previously registered preload script by its identifier.

browser_stealth_modeB

Enable or disable comprehensive anti-detection stealth overrides (masks navigator.webdriver, plugins, languages).

browser_network_throttlingC

Emulate network profiles ('offline', 'slow3g', 'fast3g', '4g', 'none') or custom bandwidth and latency.

browser_set_media_themeC

Emulate system color scheme on page: 'dark', 'light', or 'no-preference'.

browser_set_page_zoomB

Adjust page zoom level (e.g. 0.5 for 50%, 1.0 for 100%, 1.5 for 150%).

browser_mute_tabA

Mute or unmute all media audio playback in the active tab.

browser_find_in_pageA

Find text on page (Ctrl+F): count matches, extract context snippets, and scroll to first match.

browser_clipboardC

Read or write to the system clipboard.

browser_get_indexeddbB

Inspect all IndexedDB databases and object stores for current origin.

browser_set_ignore_certificate_errorsC

Bypass or enforce SSL/TLS certificate warnings on HTTPS websites.

browser_wait_for_network_idleA

Wait until network is completely idle (no active in-flight requests) for the specified duration.

browser_block_resourcesB

Block heavy resources (images, video/audio media, web fonts, tracking scripts/ads) or custom URLs to dramatically accelerate page load speed (up to 10x).

browser_cleanup_tabsA

Automatically close stale, blank (about:blank), or pattern-matching tabs to free browser memory and maintain cleanliness.

browser_performance_metricsA

Retrieve real-time browser performance metrics: JS heap memory usage (MB), DOM node count, layout count, and task duration.

browser_set_geolocationC

Override device GPS geolocation coordinates (latitude, longitude, accuracy).

browser_set_timezoneC

Override browser timezone (e.g. 'America/New_York', 'Europe/Kyiv', 'UTC').

browser_cdp_sendB

UNIVERSAL RAW CDP (GOD MODE): Send any raw Chrome DevTools Protocol command directly with custom parameters (e.g. 'DOM.getBoxModel', 'CSS.enable', 'Memory.getDOMCounters', 'Tracing.start', 'Fetch.enable').

browser_get_css_stylesB

Inspect element computed CSS styles and matched stylesheet rules by selector or @ref.

browser_new_isolated_tabA

Open a new tab in a fresh, completely isolated browser context (incognito mode: zero shared cookies, clean session storage).

browser_set_cpu_throttlingB

Emulate slower CPU speeds (1.0 = normal, 2.0 = 2x slowdown, 4.0 = 4x slowdown).

browser_handle_dialogB

Handle or configure behavior for JavaScript dialogs (alert, confirm, prompt) or dismiss DOM modal overlays and cookie banners.

browser_screencast_startC

Starts recording a screencast (video) of the target page and saves it as an MP4 file.

browser_screencast_stopB

Stops the active screencast recording.

browser_list_webmcp_toolsA

List all WebMCP tools exposed by the current webpage via navigator.modelContext.getTools().

browser_execute_webmcp_toolC

Execute a WebMCP tool exposed by the current webpage.

browser_fill_formA

Fill out multiple form elements (inputs, selects, checkboxes, radios) at once. Prefer this tool over multiple individual 'fill' or 'click' calls when interacting with forms. It is significantly faster and reduces turn count.

browser_get_event_listenersB

Inspect native DOM event listeners (click, submit, keydown, change, etc.) attached to an element via CDP DOMDebugger without invoking handlers.

browser_compare_screenshotsA

Deterministic visual comparison of two screenshots or PNG images. Calculates changed pixel count, changed ratio, and bounding box without Vision LLM overhead.

browser_observe_coverageC

Measure and observe precise V8 JavaScript code coverage during execution to discover which scripts and functions actually ran.

browser_start_coverageA

Start precise V8 code coverage measurement across subsequent browser interactions.

browser_stop_coverageB

Stop active V8 code coverage measurement and return executed scripts and functions.

browser_get_cache_storageC

Inspect Service Worker and PWA CacheStorage caches, cached endpoints, and responses via CDP.

Prompts

Interactive templates invoked by user choice

NameDescription
web-researchSystematic web browsing workflow: search, navigate, snapshot, and extract information.
form-automationGuide for safely inspecting and filling complex multi-step web forms.
network-debuggerInspect network API requests and WebSocket frames for reverse engineering.

Resources

Contextual data attached and managed by the client

NameDescription
Browser TabsList of all open tabs in the browser
Active Tab SnapshotToken-efficient interactive element snapshot of the active page
Active Tab DOMRaw HTML of the active page
Browser Console LogsConsole output logs from the active browser session
Browser Network TrafficCaptured HTTP/XHR network requests and traffic summary

TDQS

B3/5.0

Scored across 81 tools

Disambiguation3/5

Most tools have clearly distinct browser-specific purposes, but there are notable overlaps: browser_batch duplicates dozens of individual actions, browser_emulate_environment overlaps with browser_set_geolocation and browser_set_timezone, and browser_block_urls overlaps with browser_block_resources. Tab cleanup/close and storage inspection tools also have fuzzy boundaries, though descriptions generally help.

Naming Consistency4/5

All 81 tools use the browser_ prefix with snake_case, which is highly consistent. A few tools deviate from the strict verb_noun pattern (e.g., browser_window, browser_history, browser_console_logs), but the overall convention is clear and predictable.

Tool Count1/5

With 81 tools, the surface is extremely large for a browser automation server. The count far exceeds a well-scoped set, and the mega browser_batch tool plus many granular duplicates make the surface unwieldy rather than focused.

Completeness5/5

The tool set covers an exceptionally broad browser automation lifecycle: navigation, tabs, DOM interaction, network inspection, storage, cookies, screenshots, PDF, CDP, extensions, WebMCP, coverage, and performance. There are no obvious gaps for the stated browser-automation purpose.

Maintenance

ActivityMaintained
ResponsivenessOutdated data