A11y Check vs Browser Use MCP Server

In-depth architectural comparison of the A11y Check and Browser Use MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose A11y Check when:

• You need dedicated capabilities in the Browser Automation domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore A11y Check Details

Choose Browser Use MCP Server when:

• You need dedicated capabilities in the Browser Automation domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: OPENAI_API_KEY, CHROME_PATH, PATIENT.
• Primary tools included: Browser automation via Playwright, Supports SSE and stdio transport protocols, VNC server for real-time browser session streaming.

Explore Browser Use MCP Server Details

Feature & Specification Comparison

Specification	A11y Check Browser Automation	Browser Use MCP Server co-browser Browser Automation
Summary	Web accessibility scanning (WCAG 2.2 AA + KWCAG 2.2) with Korean remediation guides	browser-use packaged as an MCP server with SSE transport. includes a dockerfile to run chromium in docker + a vnc server.
Category & Scope	Browser Automation

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "a11y-check": {
      "command": "npx",
      "args": [
        "-y",
        "@a11ychk/mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "co-browser-browser-use-mcp-server": {
      "command": "uvx",
      "args": [
        "playwright"
      ],
      "env": {
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
        "CHROME_PATH": "YOUR_CHROME_PATH_HERE",
        "PATIENT": "YOUR_PATIENT_HERE"
      }
    }
  }
}

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