A11y Check vs Aether WCAG Scanner

In-depth architectural comparison of the A11y Check and Aether WCAG Scanner 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?

A

Choose A11y Check when:

• You need dedicated capabilities in the Browser Automation domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Real-browser web page inspection, Accessibility problem detection, Code-based remediation guidance.

Explore A11y Check Details

Choose Aether WCAG Scanner 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).
• You have access to required keys: ALLCHEMY_API_KEY.
• Primary tools included: Browser-based Playwright and axe-core scans, Desktop, tablet, and mobile viewport coverage, WCAG-grounded fix suggestions.

Feature & Specification Comparison

Specification	A A11y Check Browser Automation	Aether WCAG Scanner Browser Automation
Summary
Category & Scope	Browser Automation	Browser Automation
Quality signal

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-2": {
      "url": "https://nexaaly.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "aether-wcag-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "@allchemylabs/aether-wcag-scanner"
      ],
      "env": {
        "ALLCHEMY_API_KEY": "YOUR_ALLCHEMY_API_KEY_HERE"
      }
    }
  }
}

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