Comet MCP vs Strata
A side-by-side look at the Comet MCP and Strata MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Comet MCP for browser automation work as a local process; choose Strata 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 Comet MCP when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
comet_connect, comet_ask, comet_poll.
Choose Strata when
- You need dedicated capabilities in the Browser Automation domain.
- You prefer a local stdio subprocess transport.
- You want tools like
browser_close, browser_resize, browser_console_messages.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Browser Automation | Browser Automation |
| Quality signal | 59/100 · Good | 65/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 182 | 5,821 |
| Directory activity | 4 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 6 | 25 |
| Full listing | View Comet MCP | View Strata |
Tools & capabilities
Comet MCP tools 6
comet_connectConnect to Comet (auto-starts if needed)comet_askSend a task and wait for responsecomet_pollCheck progress on long-running taskscomet_stopStop current taskcomet_screenshotCapture current pagecomet_modeSwitch modes: search, research, labs, learn
Strata tools 25
browser_closeClose the pagebrowser_resizeResize the browser windowbrowser_console_messagesReturns all console messagesbrowser_handle_dialogHandle a dialogbrowser_emulate_mediaEmulate CSS media features for the page, for example switch between the light and dark color scheme. Omitted parameters are left unchanged; null clears an override.browser_evaluateEvaluate JavaScript expression on page or elementbrowser_file_uploadUpload one or multiple filesbrowser_dropDrop files or MIME-typed data onto an element, as if dragged from outside the page. At least one of "paths" or "data" must be provided.browser_findSearch the accessibility snapshot of the current page for text or a regular expression. Returns matching snapshot nodes with a few lines of surrounding context (like search snippets), each shown under its path from the root of the tree, which is cheaper than capturing the whole snapshot when you only need to locate an element and its ref.browser_fill_formFill multiple form fieldsbrowser_press_keyPress a key on the keyboardbrowser_typeType text into editable element- +13 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.
Comet MCP
{
"mcpServers": {
"hanzili-comet-mcp": {
"command": "npx",
"args": [
"-y",
"comet-mcp"
]
}
}
}
Strata
{
"mcpServers": {
"strata": {
"command": "npx",
"args": [
"-y",
"@playwright/mcp@latest"
]
}
}
}
Frequently asked questions
Comet MCP is categorized under Browser Automation and uses a local stdio subprocess. Strata belongs to Browser Automation and uses a local stdio subprocess. Pick Comet MCP for browser automation work and Strata 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.
Comet MCP is listed as free. Auth: no auth required. Strata 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 hanzili-comet-mcp and strata as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Comet MCP has a quality signal of 59/100 (Good) with 4 views, 0 installs and 182 GitHub stars. Strata has 65/100 (Great) with 1 views, 0 installs and 5,821 GitHub stars.
