Frequently Asked Questions about Cursor A11y MCP Server

Q: What is an MCP Server? A: MCP (Model Context Protocol) is an open protocol standardizing how applications provide context to LLMs. An MCP Server acts as a bridge, enabling AI models to access and interact with external data sources and tools.

Q: What is the Cursor A11y MCP Server? A: It’s a Model Context Protocol server designed to provide accessibility testing capabilities to AI agents. It helps identify accessibility issues in web applications using axe-core and Puppeteer.

Q: How does the Cursor A11y MCP Server work? A: It uses axe-core for comprehensive accessibility testing and Puppeteer to simulate user interactions. It provides detailed violation reports that include the impact level, description of the issue, affected HTML elements, and more.

Q: What are the key features of the Cursor A11y MCP Server? A: Key features include axe-core integration, Puppeteer integration, detailed violation reports, customizable testing rules, and seamless integration with Cursor.

Q: How do I install the Cursor A11y MCP Server? A: You can install it using npm with the command npm install.

Q: How do I start the Cursor A11y MCP Server? A: After installation, build the server with npm run build and then start it with npm start.

Q: How do I configure the Cursor A11y MCP Server in Cursor? A: Open Cursor’s Settings, navigate to “Features” > “MCP Servers”, add a new MCP Server with a name (e.g., ‘a11y’), select ‘command’ from the dropdown, and provide the command to execute the server, pointing to the index.js file in the build folder.

Q: How do I use the Cursor A11y MCP Server in Cursor’s Composer? A: In Cursor’s Composer, type use a11y tool. The Composer will prompt you to run the tool, and it will display the accessibility violations and code actions to fix them.

Q: What dependencies does the Cursor A11y MCP Server have? A: The main dependencies are @modelcontextprotocol/sdk, puppeteer, and zod. The test site dependencies include react, react-dom, and react-scripts.

Q: Can I test local development servers with this tool? A: Yes, the tool accepts a full URL to test or a relative path that will be appended to http://localhost:5000.

Q: Is this project open source? A: Yes, this project is licensed under the MIT License. See the LICENSE file for details.

Q: How does this relate to UBOS? A: UBOS is a full-stack AI Agent Development Platform. Integrating the Cursor A11y MCP Server into UBOS allows AI Agents to automate and enhance accessibility testing, aligning with UBOS’s vision of bringing AI Agents to every business department.