mcpbeat Sign in

Aether WCAG Scanner MCP Server

by allchemylabs Your server? Claim it
local only

Aether WCAG Scanner runs on your own machine — the client starts it, so there is no endpoint to ping. 79 installs a week from npm. Last commit 21 Oct 2026.

WCAG 2.1 AA accessibility scanner (Playwright + axe-core) with grounded, browser-verified fixes.

Installs per day peak 71 · avg 17 · -58% w/w
a month agotoday
79
Installs / week
npm · @allchemylabs/aether-wcag-scanner
2
Stars
0 open issues
21 Oct 2026
Last commit
9 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 7 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    const child = spawn(process.execPath, [playwrightCli(), 'install', 'chromium'], {
Builds a file path from a variable src/testing-agent/html-reporter.ts:80
        const buf = await fs.readFile(path.join(outputDir, rel));

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add aether-wcag-scanner -- npx -y @allchemylabs/aether-wcag-scanner
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "aether-wcag-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "@allchemylabs/aether-wcag-scanner"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.aether-wcag-scanner]
command = "npx"
args = ["-y", "@allchemylabs/aether-wcag-scanner"]
.cursor/mcp.json
{
  "mcpServers": {
    "aether-wcag-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "@allchemylabs/aether-wcag-scanner"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "aether-wcag-scanner": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@allchemylabs/aether-wcag-scanner"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ALLCHEMY_API_KEY (Beta API key from https://beta.allchemylabs.ai/?src=registry (optional: without it the scanner runs fully offline with template fixes)).

Alternatives to Aether WCAG Scanner

same job, measured the same way
MCP Accessibility Scanner
by justasmonkev

MCP server for automated web accessibility scanning with Playwright and Axe-core.

3 034 installs/wk local only
Browsegrab
by arknill

Token-efficient browser agent for local LLMs. Playwright + accessibility tree + MarkGrab.

88 installs/wk local only
Browserstage
by cloudcorprecords

Automate a browser with accessibility snapshots: navigate, click, type, fill and wait.

300 installs/wk local only
Cowork QA
by insideos-designs

Goal-driven Playwright browser sessions for LLMs, with full action traces and aria-snapshots.

48 installs/wk local only
D
Dropcoin A11y
by freshfos

Accessibility pre-checks (WCAG/BFSG) in a real browser + statement drafts. Pay per call.

2 tools answering
Sitelooper
by restspace

Record a browser flow once with a model, then compile it to a Playwright spec that needs no model.

309 installs/wk local only
Playwright URL Check
by sadri-dridi

Check whether a URL can be opened. No browser is launched.

30 tools answering
BrowserPair
by browserpair

Connect AI agents to your own Chrome with scoped access, approvals, and verified task results.

answering

Aether WCAG Scanner — questions

Answers built from our own checks of this server.

Why is there no uptime for Aether WCAG Scanner?
Aether WCAG Scanner runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @allchemylabs/aether-wcag-scanner was installed 79 times last week.
How do I connect Aether WCAG Scanner?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @allchemylabs/aether-wcag-scanner straight from npm; nothing to host, nothing to sign up for.
How many people use Aether WCAG Scanner?
The npm package @allchemylabs/aether-wcag-scanner was installed 79 times in the last week. Week over week that is -58%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Aether WCAG Scanner open source?
Yes — it is published under the MIT licence, written in TypeScript and 2 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.