wcagc — accessibility scanning

Name: wcagc — accessibility scanning
Author: WCAG-Compliance

by WCAG-Complianceversion 0.8.0i★ –iComputer or cloud

Registry nameio.github.WCAG-Compliance/mcp

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiVery new↓ 130/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Docs, sheets & office work
You need to fill in: WCAGC_MCP_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: WCAGC_MCP_KEY, WCAGC_API_BASE_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.wcagc.com/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "wcag-compliance": {
      "command": "npx",
      "args": [
        "-y",
        "@wcagc/mcp"
      ],
      "env": {
        "WCAGC_MCP_KEY": "your-value",
        "WCAGC_API_BASE_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http wcag-compliance https://mcp.wcagc.com/mcp

Or run it on your computer

claude mcp add wcag-compliance --env WCAGC_MCP_KEY=your-value --env WCAGC_API_BASE_URL=your-value -- npx -y @wcagc/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "wcag-compliance": {
      "url": "https://mcp.wcagc.com/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "wcag-compliance": {
      "command": "npx",
      "args": [
        "-y",
        "@wcagc/mcp"
      ],
      "env": {
        "WCAGC_MCP_KEY": "your-value",
        "WCAGC_API_BASE_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "wcag-compliance": {
      "type": "http",
      "url": "https://mcp.wcagc.com/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "wcag-compliance": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@wcagc/mcp"
      ],
      "env": {
        "WCAGC_MCP_KEY": "your-value",
        "WCAGC_API_BASE_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.wcagc.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

WCAGC_MCP_KEY secret required env
A wcagc API key with the mcp:scan scope. Mint one under Settings -> API keys; every plan can, with a daily quota on Free and Starter.
WCAGC_API_BASE_URL env
The wcagc API to call. Defaults to the hosted API; override only for a self-hosted deployment.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account WCAG-Compliance, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 111 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 3577 servers in this category
Published to the registry more recently than 71% of the other 3577 servers in this category
Basic checks equal to or better than 100% of the other 3577 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is wcagc — accessibility scanning safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: WCAGC_MCP_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.8.0) reached the registry 12 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Agent-Native Calendar

Agent-Native Google Calendar - manage events, sync, and public booking

by BuilderIOGrowing★ 7.6KUpdated 2 months ago

Runs in the cloud

Install

Excel MCP Server

Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.

by haris-musaWidely used↓ 49.6K/wk★ 4.3KUpdated 8 days ago

Runs on your computer

Install

MCP Server for Excel

Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

by sbroenneGrowing↓ 4.3K/wk★ 847Updated 5 days ago

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

wcagc-mcp

An MCP server that lets an AI assistant (Claude, ChatGPT, or any MCP-compatible client) run real, deterministic accessibility scans through wcagc — axe-core under the hood, not an LLM guess. Every scan result carries an explicit coverage disclaimer and never claims "compliant": automated testing finds only a portion of accessibility barriers, and this tool says so in every response.

This package is a thin, stateless adapter. It holds no database, no scan logic, and no secrets beyond the wcagc API base URL — it translates MCP tool calls into HTTP calls against the wcagc API and forwards the caller's own bearer. All authentication, entitlements, quotas, and scan orchestration live in the API; this code is safe to read end to end.

Two ways to run it

Local (stdio) — for Claude Desktop, Cursor, or any MCP client that spawns a local process:

npx @wcagc/mcp

Configure your MCP client with:

"mcpServers": { "wcagc": { "command": "npx", "args": ["-y", "@wcagc/mcp"], "env": { "WCAGC_MCP_KEY": " " } } } }

Mint an mcp:scan key from your wcagc account under Settings → API keys — available on every plan, with a daily quota on Free/Starter and unlimited on Pro/Agency.

Hosted (Streamable HTTP + managed OAuth) — what Claude web/desktop/mobile connectors and ChatGPT use, since neither runs a local process for you. Add this remote MCP connector:

https://mcp.wcagc.com/mcp

The client discovers /.well-known/oauth-protected-resource/mcp, opens the wcagc login/consent flow, and binds the connection to one Organization. No key copy/paste is required. API-key bearer authentication remains supported for local stdio and CI.

ChatGPT availability depends on the ChatGPT plan and on whether the client permits action tools; scan_url creates a scan and is not a read-only operation. See wcagc.com/integrations/mcp.

Tools

Tool	Plan	What it does
`scan_url`	all	Scan any public URL, or a registered site for full tracking (Pro+).
`check_pdf`	all	Run a PDF/UA-1 structure check on a public PDF.
`get_scan` · `get_findings`	all	Read a `scan_url` scan's status, severity counts, and findings — either kind, recorded or one-off.
`list_sites`	Pro+	List the account's registered sites.
`scan_site`	Pro+	Crawl and scan every reachable page of a registered site.
`get_run` · `get_run_findings`	Pro+	Read a full-site run from `scan_site`.
`get_root_causes`	Pro+	Group a run's repeated DOM patterns and return factual element/page blast radius.
`run_journey`	Pro+	Replay a saved multi-step journey and check each step.
`get_trends`	Pro+	Read a site's violation-count history over time.

One id, one poll tool: whatever scan_url did with a URL, get_scan and get_findings read it back. get_run and get_run_findings are only for full-site runs from scan_site.

Every scan-producing tool returns the coverage disclaimer in both the text content and the structured content. There is no score, grade, or conformance verdict — automated testing finds roughly 30–57% of accessibility issues, and the remainder needs manual review.

Configuration

Env var	Used by	Meaning
`WCAGC_API_BASE_URL`	both	The wcagc API to call. Defaults to `https://api.wcagc.com`; set it only when self-hosting.
`WCAGC_MCP_KEY`	stdio	Your `mcp:scan` API key.
`PORT`	hosted	Port to listen on (default `8080`).
`WCAGC_MCP_ALLOWED_HOSTS`	hosted	Comma-separated Host-header allowlist (DNS-rebinding protection when bound to `0.0.0.0`).
`WCAGC_MCP_INTROSPECT_TTL_SECONDS`	hosted	How long a verified bearer is cached before re-checking with the API (default `60`).
`WCAGC_MCP_OAUTH_ISSUER`	hosted	Expected OAuth issuer (defaults to `WCAGC_API_BASE_URL`).
`WCAGC_MCP_OAUTH_JWKS_URL`	hosted	Authorization Server public JWKS URL.
`WCAGC_MCP_URL`	hosted	Canonical RFC 9728 protected-resource URL (defaults to `https://mcp.wcagc.com/mcp`).
`WCAGC_MCP_JWKS_TTL_SECONDS`	hosted	JWKS cache TTL; an unknown `kid` triggers an immediate refetch.
`WCAGC_OPENAI_APPS_CHALLENGE`	hosted	OpenAI Plugins Directory domain-verification token; keep it in the deployment secret store, never in source.

Development

Hosted HTTP requests to /mcp and discovery endpoints produce JSON logs with a generated request ID, HTTP status, MCP method, error code and duration. Tokens, headers, query strings, tool arguments and results are excluded. Health probes are not logged.

The Docker entrypoint preloads the New Relic ESM agent. Set NEW_RELIC_AGENT_ENABLED=true, NEW_RELIC_APP_NAME=wcagc-mcp and the deployment secret NEW_RELIC_LICENSE_KEY to enable APM and forwarding of these safe request logs. The license key must belong to the existing New Relic account; never commit it. The stdio entrypoint does not load the agent.

npm install

npm run dev # hosted, watch mode npm run start:stdio # stdio mode npm run typecheck npm run verify # node:test against a local fixture API

License

MIT — see LICENSE.

wcagc — accessibility scanning

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

wcagc-mcp

Two ways to run it

Tools

Configuration

Development

License