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. Its 16 documented tools cover browser, accessible, name, audit.

People connecting browser automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-25 · ★ 56 · #16 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

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

With this server connected, an agent can control and images exposed with no accessible name (WCAG 4.1.2), navigate to a URL, set default navigation timeout for existing tabs, and set default operation timeout for existing tabs.

Capability map

Tools grouped from the project's README - what Accessibility Scanner lets an agent do.

Browser

5 tools - e.g. Navigate to a URL.; Go back to the previous page.; Set default navigation timeout for existing tabs.

browser_navigate · browser_navigate_back · browser_navigation_timeout · browser_default_timeout · browser_snapshot

Audit

3 tools - e.g. Crawls and scans multiple internal pages, then aggregates violations across the site.; Audits real keyboard focus behavior by pressing Tab (and optional Shift+Tab) with practical heuristics.; Audits what…

audit_site · audit_keyboard · audit_screen_reader

Scan

2 tools - e.g. Performs a comprehensive accessibility scan on the current page using Axe-core.; Runs Axe scans on the same page across viewport/media/zoom variants and compares deltas against baseline.

scan_page · scan_page_matrix

Missing

1 tool - e.g. controls and images exposed with no accessible name (WCAG 4.1.2)

missing-accessible-name

Uninformative

1 tool - e.g. names such as "click here", "read more", "image" that mean nothing out of context (WCAG 2.4.4)

uninformative-accessible-name

Filename

1 tool - e.g. image alt text that is a file name, e.g. IMG_1234.jpg, DSC00123 (WCAG 1.1.1). Only images are checked: a link or button legitimately named after the file it dow

filename-as-accessible-name

Duplicate

1 tool - e.g. sibling links with the same name that lead to different URLs (WCAG 2.4.4)

duplicate-accessible-name

read & search

1 tool - e.g. accessibility tree order (what is read) versus visual position (WCAG 1.3.2), i.e. order, flex-direction: row-reverse, absolute positioning

reading-order-mismatch

Latest releases

3.2.0 · 2026-08-12

bump @hono/node-server from 1.19.13 to 2.0.12 in the npm_and_yarn group across 1 directory · bump ip-address from 10.2.0 to 10.4.0 in the npm_and_yarn group across 1 directory · bump the npm_and_yarn group across 1…

3.1.0 · 2026-08-03

surface missing browser executable path in not-installed error (sync Playwright MCP #41941) · escape user input in generated code · Surface Axe incomplete results and add scan scoping · Feat/axe improvements · add…

3.0.0 · 2026-07-24

Fix streamable HTTP listRoots initialization race · mirror Playwright MCP find and status updates · bind Docker Compose MCP port to localhost · avoid quadratic snapshot compression · Fix HTTP session fallback timer…

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 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 8 releases in the last 90 days (latest 2026-08-12)
registry: io.github.JustasMonkev/mcp-accessibility-scanner (active, first published 2025-09-10)
packages: npm:mcp-accessibility-scanner

06 · Accessibility Scanner FAQ

Is Accessibility Scanner still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-25 and it shipped 8 releases in the last 90 days. We re-verify nightly.

What can Accessibility Scanner do?

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

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