Scalebrowser vs Yab, Yet Another Browser
A side-by-side look at the Scalebrowser and Yab, Yet Another Browser MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Scalebrowser for browser automation work as a local process; choose Yab, Yet Another Browser 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 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.
Choose Yab, Yet Another Browser when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- You want tools like
devtools_comments, devtools_console, devtools_network.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Browser Automation | Browser Automation |
| Quality signal | 61/100 · Good | 56/100 · 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 | 1 | 0 |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 65 | 69 |
| Full listing | View Scalebrowser | View Yab, Yet Another Browser |
Tools & capabilities
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
Yab, Yet Another Browser tools 69
devtools_commentsRead user-authored comments on elements of an already inspected, non-private tab.devtools_consoleRead recorded Console messages from an already inspected, non-private tab.devtools_networkRead sanitized request metadata recorded by the tab's Developer Tools.devtools_traceRead the WebKit Performance recording's event names, durations and nesting.devtools_stylesRead the currently selected element's matched and computed styles from Developer Tools.native_contextRead Yab's own current settings, spaces, tabs, mail accounts, permissions and this task's native operations.native_actionsList native Yab actions with their strict argument schemas, targetKind, undo support and permission requirements.native_applyPerform a native Yab action explicitly requested by the user: settings, spaces, tabs, page fonts or connecting Gmail.native_operationRead this task's native operation by operationId, or wait for a change up to seconds (0 to 10).native_undoUndo a native change of this task by its changeId (or the last undoable change).tabsList the tabs open in Yab, the user's web browser: the user's and the agents'.openOpen a web page (URL) in a new agent tab in Yab, the user's browser, signed in to their sites, beside the user's tabs.- +57 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.
Scalebrowser
{
"mcpServers": {
"scalebrowser": {
"command": "npx",
"args": [
"-y",
"@scalebrowser/mcp"
]
}
}
}
Yab, Yet Another Browser
{
"mcpServers": {
"yab-yet-another-browser": {
"command": "npx",
"args": [
"-y",
"yab-mcp"
]
}
}
}
Frequently asked questions
Scalebrowser is categorized under Browser Automation and uses a local stdio subprocess. Yab, Yet Another Browser belongs to Browser Automation and uses a local stdio subprocess. Pick Scalebrowser for browser automation work and Yab, Yet Another Browser 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.
Scalebrowser has no declared pricing — check the project's own site. Yab, Yet Another Browser 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 scalebrowser and yab-yet-another-browser as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Scalebrowser has a quality signal of 61/100 (Good) with 1 views, 0 installs and 1 GitHub stars. Yab, Yet Another Browser has 56/100 (Good) with 0 views, 0 installs and 0 GitHub stars.