Vessel Browser MCP server

Read from the package source without running it. The installed server may list more.

• vessel_bookmark_archive

  Archive the current page, a URL, a link target from the current page, or an existing bookmark into the default "Archive" folder.

• vessel_bookmark_list

  List all bookmark folders and their contents. Optionally filter by folder.

• vessel_bookmark_open

  Open a saved bookmark by bookmark ID. Optionally open it in a new tab.

• vessel_bookmark_organize

  Organize a bookmark by intent: save or move a bookmark into a folder, creating the folder if needed. Works with bookmark_id, url, a link target from the current page, or the current page itself.

• vessel_bookmark_removewrite action

  Remove a specific bookmark by its ID.

• vessel_bookmark_save

  Save the current page, a specific URL, or a link target from the current page into a bookmark folder. You can provide folder_id or folder_name; missing folder names can be created automatically.

• vessel_bookmark_search

  Search bookmarks by title, URL, note, folder name, or folder summary.

• vessel_checkpoint_createwrite action

  Capture the current session as a named checkpoint.

• vessel_checkpoint_restore

  Restore a saved checkpoint by ID or exact name.

• vessel_clear_highlightswrite action

  Remove all visual highlights from the current page, including any saved persistent highlights for this URL.

• vessel_clear_transcript

  Clear the in-browser transcript monitor state.

• vessel_click

  Click an element on the page by its index number or CSS selector.

• vessel_close_tab

  Close a browser tab by its ID.

• vessel_create_checkpointwrite action

  Alias for vessel_checkpoint_create. Capture the current session as a checkpoint.

• vessel_create_folderwrite action

  Create a named folder for organizing bookmarks. If a folder with the same name already exists, return it instead of duplicating it.

• vessel_create_tabwrite action

  Open a new browser tab, optionally navigating to a URL.

• vessel_current_tab

  Return the browser tab the human is actively looking at right now. Use this instead of vessel_list_tabs when you only need the focused tab.

• vessel_delete_sessionwrite action

  Delete a previously saved named browser session.

• vessel_devtools_clear_errors

  Clear the captured error buffer for the active tab.

• vessel_devtools_console_clear

  Clear the captured console log buffer for the active tab.

• vessel_devtools_console_logs

  Get console log entries captured from the active tab. Returns a rolling buffer of recent console.log, console.warn, console.error, etc. calls. Automatically starts capturing on first use.

• vessel_devtools_execute_jswrite action

  Execute a JavaScript expression in the context of the active tab's page via the Runtime.evaluate CDP method. Supports async/await. This is a dangerous action — it can modify page state.

• vessel_devtools_get_errors

  Get captured JavaScript errors and unhandled promise rejections from the active tab. Automatically starts capturing on first use.

• vessel_devtools_get_storage

  Read browser storage for the active tab's origin. Supports localStorage, sessionStorage, cookies, and IndexedDB database listing.

• vessel_devtools_get_styles

  Get computed CSS styles for an element matching a CSS selector. Optionally filter to specific properties.

• vessel_devtools_modify_dom

  Set or remove an HTML attribute on an element matching a CSS selector. This is a dangerous action that modifies the page.

• vessel_devtools_network_clear

  Clear the captured network request buffer for the active tab.

• vessel_devtools_network_log

  Get captured network requests/responses from the active tab. Returns method, URL, status, timing, headers, and size. Automatically starts capturing on first use.

• vessel_devtools_network_response_body

  Get the response body for a specific network request by its request ID. Use vessel_devtools_network_log first to find the request ID.

• vessel_devtools_performance

  Get a performance snapshot for the active tab including navigation timing, paint metrics, memory usage, and resource loading statistics.

• vessel_devtools_query_dom

  Query the DOM of the active tab using a CSS selector. Returns matching elements with their attributes, node type, and optionally their HTML content. Limited to 50 results.

• vessel_devtools_set_storage

  Set or remove a key in localStorage or sessionStorage for the active tab. This is a dangerous action that modifies page state.

• vessel_dismiss_popup

  Dismiss a modal, popup, newsletter gate, cookie banner, or blocking overlay using common close and decline actions.

• vessel_extract_content

  Extract structured content from the current page. Modes: 'full' (default, everything), 'summary' (title+headings+stats), 'interactives_only' (clickable elements with indices), 'forms_only' (form fields only), 'text_only' (page text, no interactives), 'visible_only' (only currently visible, in-viewport, unobstructed elements plus active overlays), 'results_only' (likely primary search/result links

• vessel_extract_structured_data

  Return normalized structured data derived from page JSON-LD, microdata, RDFa, and high-signal meta tags. Useful for recipes, products, articles, events, FAQs, and other schema-rich pages.

• vessel_extract_text

  Extract the text content of a specific element by its index number or CSS selector.

• vessel_focus

  Focus an input, button, or interactive element. Useful before pressing keys or to trigger focus-dependent UI.

• vessel_folder_removewrite action

  Remove a folder. Bookmarks in it are moved to Unsorted.

• vessel_folder_rename

  Rename an existing bookmark folder.

• vessel_go_back

  Go back in browser history.

• vessel_go_forward

  Go forward in browser history.

• vessel_highlight

  Visually highlight an element or text on the page for the user. Use to draw attention to specific parts of the page. Highlights persist until cleared. Set persist=true to save the highlight so it re-appears when the user revisits this page.

• vessel_hover

  Move the mouse pointer over an element to trigger hover states, tooltips, or dropdown menus.

• vessel_list_highlights

  List highlights related to the current browsing session. Includes saved persistent highlights plus the active tab's live text selection and any visible unsaved highlight marks. IMPORTANT: When the user says they highlighted or selected text, call this tool before falling back to screenshots or vision.

• vessel_list_sessions

  List previously saved named browser sessions with cookie and storage counts.

• vessel_list_tabs

  List all open browser tabs with their IDs, titles, and URLs.

• vessel_load_session

  Load a previously saved named session, restoring cookies, localStorage, and saved tabs.

• vessel_memory_append

  Append markdown content to an existing note in the configured Obsidian vault.

• vessel_memory_link_bookmarkwrite action

  Create a note for a bookmark or append bookmark details into an existing memory note.

• vessel_memory_list

  List recent markdown notes in the configured Obsidian vault.

• vessel_memory_note_createwrite action

  Write a markdown note into the configured Obsidian vault for research notes, breadcrumbs, or synthesis.

• vessel_memory_page_capture

  Capture the current page into the configured Obsidian vault as a markdown note with URL, excerpt, and content snapshot.

• vessel_memory_search

  Search markdown notes in the configured Obsidian vault by title, path, body, and optional tags.

• vessel_navigate

  Navigate the active browser tab to a URL.

• vessel_press_key

  Press a keyboard key, optionally after focusing an element.

• vessel_publish_transcriptwrite action

  Publish or stream agent reasoning/status text into Vessel's in-browser transcript monitor. Intended for external harnesses that want to mirror live thinking into the browser UI.

• vessel_read_page

  Read the active tab's page content. Includes saved highlights plus any active text selection or visible unsaved highlights on the page. Supports modes: full (default — includes highlights section), summary, interactives_only, forms_only, text_only, visible_only, results_only.

• vessel_reload

  Reload the current page.

• vessel_remove_highlightwrite action

  Remove a persistent highlight by ID and clear it from any open tab. Use vessel_list_highlights to find IDs.

• vessel_restore_checkpoint

  Alias for vessel_checkpoint_restore. Restore a saved checkpoint by ID or exact name.

• vessel_save_session

  Persist the current cookies, localStorage, and tab layout under a reusable session name.

• vessel_screenshot

  Capture a screenshot of the current page. Returns a base64-encoded PNG image.

• vessel_scroll

  Scroll the page up or down.

• vessel_select_option

  Select an option in a dropdown by label or value.

• vessel_set_ad_blocking

  Enable or disable ad blocking for the active tab or a matched tab. Reload after changes unless reload is false.

• vessel_submit_formwrite action

  Submit a form using a field index, submit button index, form selector, or button selector.

• vessel_switch_tab

  Switch to a different browser tab by ID or title/URL match.

• vessel_type

  Type text into an input field or textarea. Clears existing content first.

• vessel_type_text

  Alias for vessel_type. Type text into an input field or textarea.

• vessel_wait_for

  Wait for text or a selector to appear on the current page.

• Code scan6 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 13 days ago15/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Vessel Browser: common questions

Is Vessel Browser MCP server safe?

Yes, by our scan: it is graded A (92/100). Read the Vessel Browser safety report

How do I install Vessel Browser?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does Vessel Browser need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Vessel Browser maintained?

The last commit was 13 days ago (2026-09-15). The latest release is v0.1.10.

What can I use instead of Vessel Browser?

Servers from other publishers that do the same job: Safari MCP server, Native DevTools MCP server and Behavior Runtime MCP server. Compare all Vessel Browser alternatives.