Pixelcheck vs Strata

A side-by-side look at the Pixelcheck and Strata MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Pixelcheck logoPixelcheckBrowser Automation · Local subprocess (stdio)Real eyes and hands on the web for AI agents. MCP-first. Local-first. Vendor-agnostic.57GoodAuth: not declaredStrata logoStrataBrowser Automation · Local subprocess (stdio)MCP server for progressive tool usage at any scale (see https://klavis.ai)65GreatAuth: not declared

Verdict: choose Pixelcheck 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?

Pixelcheck logoChoose Pixelcheck when

  • You need dedicated capabilities in the Browser Automation domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: ANTHROPIC_API_KEY.
  • You want tools like audit_url, explore_url, see.
Explore Pixelcheck

Strata logoChoose 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.
Explore Strata

Feature & specification comparison

Rows where the two servers differ are marked.

SpecPixelcheck logoPixelcheckStrata logoStrata
CategoryBrowser AutomationBrowser Automation
Quality signal57/100 · Good65/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsANTHROPIC_API_KEYNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars65,822
Directory activity 0 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
Tools1225

Tools & capabilities

Pixelcheck tools 12

  • audit_urlYou want the full audit pipeline against one URL — agent loop, scoring, JSON + HTML report.
  • explore_urlYou want a quick autonomous run with a free-form goal; no scenario YAML needed.
  • seeYou want to look at a URL once and get back DOM summary + screenshot + console errors + an optional natural-language note. 0 LLM cost when `goal` is omitted.
  • actYou want to drive an action sequence (click / fill / scroll / screenshot / natural-language `act` / vision `note`) and get back per-step status + final DOM + screenshot.
  • extractYou want a typed payload back from a URL — pricing tiers, feature lists, FAQ entries — shaped exactly the way you asked for. Hand the tool a JSON Schema; get back `data` matching it plus DOM / console / screenshot.
  • judgeYou want a rubric-driven critique of one URL — aesthetic polish, dark-pattern risk, or any custom rubric. Returns per-criterion scores (0..10) + severity-graded findings with on-screen locations. 1 vision call.
  • compareYou want an A/B comparison of two URLs against the same rubric. Default `double_blind` mode judges each side independently then synthesises a comparison (3 vision calls, free of anchoring bias). `fast` mode is 1 call (cheaper, anchored).
  • list_personasDiscover which personas are installed in a project.
  • list_scenariosDiscover which scenarios are installed in a project.
  • list_capabilitiesSelf-describe the server: every shipped tool with kind / cacheability / static cost band / side-effects / dependency declarations, plus the public env-var table and live result-cache state. Pure introspection — call it once on first connect to plan the rest of your session.
  • calibrate_criticRun the critic calibration gate against labeled fixtures (returns pass/fail + agreement metrics).
  • get_last_reportRead the most recent audit's summary JSON from the local history DB.

Strata tools 25

  • browser_closeClose the page
  • browser_resizeResize the browser window
  • browser_console_messagesReturns all console messages
  • browser_handle_dialogHandle a dialog
  • browser_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 element
  • browser_file_uploadUpload one or multiple files
  • browser_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 fields
  • browser_press_keyPress a key on the keyboard
  • browser_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.

Pixelcheck

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "pixelcheck": {
      "command": "npx",
      "args": [
        "-y",
        "pixelcheck"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "YOUR_ANTHROPIC_API_KEY_HERE"
      }
    }
  }
}

Strata

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "strata": {
      "command": "npx",
      "args": [
        "-y",
        "@playwright/mcp@latest"
      ]
    }
  }
}

Frequently asked questions

Pixelcheck is categorized under Browser Automation and uses a local stdio subprocess. Strata belongs to Browser Automation and uses a local stdio subprocess. Pick Pixelcheck 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.

Pixelcheck has no declared pricing — check the project's own site. 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 pixelcheck and strata as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Pixelcheck has a quality signal of 57/100 (Good) with 0 views, 0 installs and 6 GitHub stars. Strata has 65/100 (Great) with 1 views, 0 installs and 5,822 GitHub stars.