Accessibility Scanner MCP Server

A powerful Model Context Protocol (MCP) server that provides automated web accessibility scanning and browser automation using Playwright and Axe-core. This server enables LLMs to perform WCAG compliance checks, interact with web pages, manage persistent browser sessions, and generate detailed accessibility reports with visual annotations. It runs locally over stdio via the published package.

People who work with Playwright and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-16 · ★ 56 · #16 OF 255 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install Accessibility Scanner

before you install - you'll need

Set PLAYWRIGHT_MCP_ISOLATED before connecting.

Claude Code

claude mcp add justasmonkev-mcp-accessibility-scanner -- npx -y mcp-accessibility-scanner

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "justasmonkev-mcp-accessibility-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-accessibility-scanner"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package mcp-accessibility-scanner - unscoped; check the name against the project README before installing

registry namespace io.github.JustasMonkev is GitHub-verified and matches the repo owner

03 · What Accessibility Scanner can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

An agent gets 2 documented tools across scan, audit, including scan_page, audit_site.

The 2 tools it gives your agent

Extracted from the project's README - what mcp-accessibility-scanner lets an agent do.

scan_page: - Performs a comprehensive accessibility scan on the current page using Axe-core.
audit_site: - Crawls and scans multiple internal pages, then aggregates violations across the site.

Latest releases

3.5.0 · 2026-09-16

add --profile-dir-name for explicit extension profile selection · propose deferring WebMCP adoption · bump the npm_and_yarn group across 1 directory with 2 updates · Require explicit install capability for browser…

3.4.0 · 2026-09-06

warn about extension token focus behavior · add snapshot bounding boxes · cover searchbox-derived snapshot names · add browser action recording tools · cover trace recovery after failed stop · wait for HTTP event…

3.3.2 · 2026-08-30

share frame work pool for axe installs

04 · Who maintains Accessibility Scanner

mcp-accessibility-scanner is maintained by justasmonkev. It's the only MCP server we track from this author; the repo dates to Jan 2025.

05 · Facts

repository: github.com/justasmonkev/mcp-accessibility-scanner
category: browser automation - ranked #16 of 255 actively-maintained browser automation servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-16)
registry: io.github.JustasMonkev/mcp-accessibility-scanner (active, first published 2025-09-10)
packages: npm:mcp-accessibility-scanner

06 · Accessibility Scanner FAQ

What is Accessibility Scanner?

Is Accessibility Scanner still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-16 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Accessibility Scanner?

Run `npx -y mcp-accessibility-scanner`. The README documents one environment variable (PLAYWRIGHT_MCP_ISOLATED) to set first. Set PLAYWRIGHT_MCP_ISOLATED before connecting. You can also paste the ready-made client config above.

Does Accessibility Scanner run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Accessibility Scanner

Alternatives to Accessibility Scanner

Maintained browser automation servers if Accessibility Scanner isn't the fit.

Pairs well with

Servers that cover what Accessibility Scanner doesn't - only shown when the pairing reason fits the companion.

More browser automation MCP servers · Opencut Controller · Power Automate · Auto Mobile · Dash MCP Server · Katalon True Platform MCP

More TypeScript MCP servers · Gongio MCP · Linkinator MCP · Pylon MCP · Apple Voice Memo MCP · Whisper MCP · see all