Web Accessibility Testing MCP server

This is a small helper that lets your AI check web pages for accessibility issues. It runs the same testing engine that many web teams use, so you get a plain list of what is wrong and where. It is handy if you build or edit web pages and want a quick check without learning a testing tool.

What this MCP server does

You ask your AI something like check this page for accessibility problems. Your AI passes the web address to this helper. The helper opens the page in a hidden browser, runs the accessibility checks, and collects the findings. Then your AI reads those findings and explains them to you in normal words, with the exact spots that need fixing.

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What you can do with it

• Test a public web page address for accessibility issues
• Test a chunk of HTML you paste in
• Check color combinations for contrast problems
• Check whether ARIA attributes are used correctly
• Find content that forces a specific screen orientation
• List the accessibility rules available, filtered by WCAG level
• Run a check at a phone screen size instead of a desktop size

Try asking your AI

• “Check https://example.com for accessibility problems at WCAG 2.1 AA”
• “Is the contrast between #777777 text and #EEEEEE background good enough?”
• “Test this HTML snippet for ARIA mistakes: <div role='button' aria-pressed='false'>Click me</div>”
• “Does this page force portrait orientation on phones?”

What it gives back to you

You get back a list of problems found, grouped by type, with the exact HTML element and a short explanation of what is wrong. It also tells you how many checks passed and which ones could not be decided. Your AI usually turns that into a short summary in the chat, with the worst issues first.

Before you start

Who it's for

Web developers, designers, content editors, and anyone who needs a quick accessibility check on a page or HTML snippet.