It helps an AI agent notice common barriers that can make a website or interface difficult to use.

a11y — MCP server by rog0x/mcp-a11y-tools

a11y

a11y is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from rog0x/mcp-a11y-tools. Its token cost is not measured, scanned A, original, no licence file.

A local MCP tool set for checking accessibility in web content, including alternative text, headings, colour contrast, and ARIA. Accessibility means making software usable by people with disabilities.

In plain words

What is it for?: It is for reviewing alt text, heading structure, contrast, and ARIA markup through the @rog0x/mcp-a11y-tools npm package.
Why use it?: It helps an AI agent notice common barriers that can make a website or interface difficult to use.

Written for no agent in particular: it speaks MCP, so any client can run it.

Good fit It is for reviewing alt text, heading structure, contrast, and ARIA markup through the @rog0x/mcp-a11y-tools npm package.

Compare 6 mcp servers from other repositories ↓

Install with agentmods

npx agentmods add mcp/rog0x/mcp-a11y-tools/a11y

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/rog0x/mcp-a11y-tools

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/rog0x/mcp-a11y-tools/a11y/github.svg)](https://agentmods.dev/mcp/rog0x/mcp-a11y-tools/a11y)

Your own site

<a href="https://agentmods.dev/mcp/rog0x/mcp-a11y-tools/a11y"><img src="https://agentmods.dev/badge/mcp/rog0x/mcp-a11y-tools/a11y/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/rog0x/mcp-a11y-tools/a11y"><img src="https://agentmods.dev/badge/mcp/rog0x/mcp-a11y-tools/a11y.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Security

Grade A, and why

a11y scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

listed in the official MCP registry · 10 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 10 lines scan A 71125ac26f50

Subscribe to this mod's changes

a11y is an MCP server published in the GitHub repository rog0x/mcp-a11y-tools (0 stars, last pushed 7mo ago), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Design and UX Frontend a11y accessibility ai-agents aria claude mcp

a11y next to 6 mcp servers from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
a11yrog0x/mcp-a11y-tools	MCP server	0	7mo ago	none	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
accessibility-mcp-serverAiAgentKarl/accessibility-mcp-server	MCP server	0	7mo ago	none	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
tactualtactual-dev/tactual	MCP server	1	4mo ago	Apache-2.0	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
accessibility-agentsCommunity-Access/accessibility-agents	MCP server	436	yesterday	MIT	A	—	Claude Code
a11y-toolkitkinti/a11y-toolkit	MCP server	3	yesterday	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
mcpOverlayQA/mcp	MCP server	0	16d ago	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
chart-color-auditsocraticstatic/chart-color-audit	MCP server	0	1mo ago	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode