A11y MCP Server
An MCP (Model Context Protocol) server for performing accessibility audits on webpages using axe-core. Use the results in an agentic loop with your favorite AI assistants (Cline/Cursor/GH Copilot) and let them fix a11y issues for you!
Features
- Perform detailed accessibility audits on any webpage
- Get a summary of accessibility issues
- Filter audits by specific WCAG criteria
- Include HTML snippets in the results for easier debugging
Installation
Configuration
To use this MCP server with Cline, you need to add it to your MCP settings configuration file.
MCP configuration
Add the following to the mcpServers
object:
Available Tools
audit_webpage
Performs a detailed accessibility audit on a webpage.
Parameters:
url
(required): URL of the webpage to auditincludeHtml
(optional): Whether to include HTML snippets in the results (default: false)tags
(optional): Array of specific accessibility tags to check (e.g., wcag2a, wcag2aa, wcag21a, best-practice)
Example:
get_summary
Gets a summary of accessibility issues for a webpage.
Parameters:
url
(required): URL of the webpage to audit
Example:
Example Usage
Once configured, you can ask Claude to use the MCP server to perform accessibility audits:
- "Can you check example.com for accessibility issues?"
- "Audit my website at https://mywebsite.com for WCAG 2.1 AA compliance"
- "Give me a summary of accessibility issues on https://example.com"
- "Check if my local development server at http://localhost:3000 has any critical accessibility problems"
Development
To run the server locally for development:
Releasing
This project includes a release script to help with versioning and publishing to npm. The script handles version bumping, running tests, git tagging, and npm publishing.
To release a new version:
For more information, run:
License
MPL 2.0
Credits
This project builds atop the awesome work done by axe-core
This server cannot be installed
An MCP (Model Context Protocol) server for performing accessibility audits on webpages using axe-core. Use the results in an agentic loop with your favorite AI assistants (Cline/Cursor/GH Copilot) and let them fix a11y issues for you!
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