How do I install the a11y mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

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A11y MCP Server

MCP server for performing accessibility audits on webpages

Local serverstdio

What is the A11y MCP Server?

MCP server for performing accessibility audits on webpages.

What A11y MCP does

An MCP (Model Context Protocol) server for performing accessibility audits on webpages using axe-core. Use the results in an agentic loop with your favorite AI assistants (Cline/Cursor/GH Copilot) and let them fix a11y issues for you!

Key capabilities

Perform detailed accessibility audits on any webpage
Get a summary of accessibility issues
Filter audits by specific WCAG criteria
Include HTML snippets in the results for easier debugging

Practical notes

Maintained by priyankark.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
audit_webpage
get_summary

How to install the A11y MCP Server

{
  "mcpServers": {
    "a11y": {
      "command": "npx",
      "args": ["-y", "npx"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

“Use A11y MCP to audit webpage.”
“Use A11y MCP to get summary.”

Frequently asked questions

MCP server for performing accessibility audits on webpages Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.

Alternatives to the A11y MCP Server

Playwright

Official

Use Microsoft’s Playwright MCP server to navigate pages, inspect accessibility snapshots, fill forms and capture browser screenshots.

Browser AutomationTypeScript★ 21.0k

Browser MCP

Puppeteer-powered browser control that drives pages from the accessibility tree instead of pixels.

Browser AutomationRemoteTypeScript★ 38.4k

Wcagc — accessibility scanning

Deterministic axe-core accessibility scans (WCAG 2.1 AA, EN 301 549, PDF/UA) via your account.

Accessibility & Interface AuditsRemote

Audit

AI website growth audits: SEO, performance, AI readiness (GEO), conversion, a11y, security.