A11y Scorer MCP Server

by lazymac2x Your server? Claim it

answering

A11y Scorer is answering right now. Last checked 4 min ago. It exposes 4 tools. Last commit 17 May 2026.

Cloudflare Workers MCP server: a11y-scorer

Uptime history 48 days of history

48 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

175 ms

Response time

average over 24h

Stars

last commit 17 May 2026

Nothing serious here today

Today is the operative word: we check A11y Scorer every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add a11y-scorer --transport http https://api.lazy-mac.com/a11y-scorer/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "a11y-scorer": {
      "url": "https://api.lazy-mac.com/a11y-scorer/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.a11y-scorer]
url = "https://api.lazy-mac.com/a11y-scorer/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "a11y-scorer": {
      "url": "https://api.lazy-mac.com/a11y-scorer/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "a11y-scorer": {
      "url": "https://api.lazy-mac.com/a11y-scorer/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

a11y

a11y_audit_html

Audit raw HTML for WCAG 2.1 AA issues.

a11y_audit_url

Fetch a URL and return a WCAG 2.1 AA heuristic audit.

a11y_contrast

Evaluate WCAG color contrast for a foreground/background pair.

a11y_headings

Extract heading outline from HTML.

Endpoints

URL	Transport	State	Latency	Checked
https://api.lazy-mac.com/a11y-scorer/mcp	streamable-http	answering	171 ms	4 min ago

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A11y Scorer — questions

Answers built from our own checks of this server.

What can A11y Scorer do?

It exposes 4 tools, read directly from the server on our last check. Among them: a11y_audit_html, a11y_audit_url, a11y_contrast, a11y_headings. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is A11y Scorer working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 175 ms. The bar chart above shows every period we have measured.

How do I connect A11y Scorer?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does A11y Scorer need an API key?

No. A11y Scorer completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is A11y Scorer?

It answers our handshake in 175 ms on average, which is faster than 72% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is A11y Scorer open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.