Public Browser vs Scalebrowser
A side-by-side look at the Public Browser and Scalebrowser MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Public Browser for browser automation work as a local process; choose Scalebrowser for browser automation as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Public Browser when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- You want tools like
virtual_desk, view_page, click.
Choose Scalebrowser when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- You want tools like
lease_profile, lease_fleet, lease_renew.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Browser Automation | Browser Automation |
| Quality signal | 64/100 · Good | 61/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 19 | 1 |
| Directory activity | 1 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 25 | 65 |
| Full listing | View Public Browser | View Scalebrowser |
Tools & capabilities
Public Browser tools 25
virtual_deskList all open tabs with IDs, URLs and state. Call it first in every session, after a reconnect, or when unsure; reuse a listed tab ID instead of opening duplicates. Cheap, call liberally.view_pageSee what is on the page: text plus stable element refs for click/type/fill_form. Default filter 'interactive' lists actionable elements; for paragraphs or table cells call view_page(ref, filter: 'all'). Collapsed containers show as [eXX role, N items] — expand with view_page(ref: 'eXX', filter: 'all').clickClick an element by ref, CSS selector, visible text, or viewport x/y (canvas, pixel-precise targets). Dispatches real CDP mouse events. A click that opens a new tab is reported in the response. The DOM diff (NEW/REMOVED/CHANGED) arrives with the next page action, or here with wait_for_diff: true.typeType text into an input identified by ref or CSS selector. For 2+ fields use fill_form; for special keys (Enter, Escape, Tab, arrows) or shortcuts (Ctrl+K) use press_key.fill_formFill a whole form in one call: text inputs, <select> (by value or visible label), checkboxes (boolean) and radio buttons. One round-trip; partial errors do not abort and each field reports its own status. On per-field errors call view_page and retry the failing fields.press_keyPress a key or shortcut (Enter, Escape, Tab, arrows, Ctrl+K). Optionally focus an element first via ref or selector.scrollScroll the page, a container, or an element into view. Reports the position and content growth (scrollHeight delta — detects lazy-loaded content) and handles settle timing. Use container_ref/container_selector plus direction to scroll inside a container.dragDrag a source onto a target: HTML5 drag-and-drop (draggable lists, SortableJS, React DnD) and mouse drags (sliders, canvas, resize handles). Scrolls the source into view; says when no page reaction was detected. Source: from_ref/from_selector or from_x+from_y; target: to_ref/to_selector or to_x+to_y.navigateNavigate the active tab to a URL, or action 'back' / 'reload' (all refs become stale after reload). Waits for settle. Overwrites the user's active tab — check virtual_desk first; the first call per session is redirected to virtual_desk.switch_tabOpen a new tab, switch to a tab by ID (from virtual_desk), or close one. Prefer 'open' over navigate when the user's active tab must stay untouched. Refs from the previous tab are invalid afterwards — call view_page before acting.tab_statusActive tab's cached URL, title, ready state and errors — a cheap mid-workflow sanity check ('did my click navigate?'). Not for tab discovery or page content.wait_forWait until a condition holds: element visible, page text present, URL match, network idle, or a JS expression true. Prefer condition 'text' over a JS expression for 'has the page said X yet'. assert: true checks once and fails instead of waiting.- +13 more on the listing page
Scalebrowser tools 65
lease_profileReserve a free profile, start its browser, bind a tab, and return the handle.lease_fleetThe same for several profiles at once, one handle each.lease_renewPush the reservation's deadline out without losing the handle.start_runSay in one sentence what this stretch of work is for, so the operator sees it.release_profileEnd the reservation and stop the browser. Records how the work went.open_pageNavigate to a public http or https address, and get the full page map back.snapshotWhat is on the page now. A diff, unless you ask for a full map.clickClick an element, optionally a point inside it, for a picture rather than a control.press_and_holdThe whole press-and-hold gesture, in one call.type_textClick a field and type into it at this profile's own cadence.fill_formSeveral fields in one call.press_keyA key, including modifier chords.- +53 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Public Browser
{
"mcpServers": {
"public-browser": {
"command": "npx",
"args": [
"-y",
"public-browser@latest"
]
}
}
}
Scalebrowser
{
"mcpServers": {
"scalebrowser": {
"command": "npx",
"args": [
"-y",
"@scalebrowser/mcp"
]
}
}
}
Frequently asked questions
Public Browser is categorized under Browser Automation and uses a local stdio subprocess. Scalebrowser belongs to Browser Automation and uses a local stdio subprocess. Pick Public Browser for browser automation work and Scalebrowser for browser automation.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Public Browser has no declared pricing — check the project's own site. Scalebrowser has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add public-browser and scalebrowser as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Public Browser has a quality signal of 64/100 (Good) with 1 views, 0 installs and 19 GitHub stars. Scalebrowser has 61/100 (Good) with 1 views, 0 installs and 1 GitHub stars.