A11y Tools

Verified Integration

Author: @spawning•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect A11y Tools to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "a11y-tools-1": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-a11y-tools-1"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Provides a comprehensive suite of web accessibility analysis tools for AI agents, covering alt text, heading structure, color contrast, ARIA, and form compliance.

Indexed Date

7/21/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for A11y Tools

For alt text, it detects missing, empty, or low-quality descriptions. For headings, it verifies nesting and single H1 rules. For color contrast, it gives precise ratios and compliance levels. For ARIA, it flags invalid roles, missing properties, or misuse. For forms, it checks labels, fieldset/legend use, and autocomplete suggestions.

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