{"id":28767718,"url":"https://github.com/ronantakizawa/a11ymcp","last_synced_at":"2025-07-17T03:38:42.574Z","repository":{"id":289913667,"uuid":"972804034","full_name":"ronantakizawa/a11ymcp","owner":"ronantakizawa","description":"Verified MCP Server for Web Accessibility Testing (1000+ 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Tools and Integrations","Developer Tools","🌐 Browser Automation \u0026 Web Scraping","MCP Servers \u0026 Integrations","🌐 Web Development","🎨 Product / Design"],"sub_categories":["Testing \u0026 QA","How to Submit","Other IDEs","Accessibility"],"readme":"# Web Accessibility-Testing MCP Server (A11y MCP)\n[![MseeP.ai Security Assessment Badge](https://mseep.net/pr/ronantakizawa-a11ymcp-badge.png)](https://mseep.ai/app/ronantakizawa-a11ymcp)\n[![smithery badge](https://smithery.ai/badge/@ronantakizawa/a11ymcp)](https://smithery.ai/server/@ronantakizawa/a11ymcp)\n[![Verified on MseeP](https://mseep.ai/badge.svg)](https://mseep.ai/app/01361aeb-0dce-45d6-80fb-76ff443dbfc8)\n\n\u003ca href=\"https://glama.ai/mcp/servers/@ronantakizawa/a11ymcp\"\u003e\n  \u003cimg width=\"380\" height=\"200\" src=\"https://glama.ai/mcp/servers/@ronantakizawa/a11ymcp/badge\" /\u003e\n\u003c/a\u003e\n\n![a11ymcpwide](https://github.com/user-attachments/assets/a37c4a9e-da5e-49ac-9705-0ef87a1d5c17)\n\n\nA11y MCP is an MCP (Model Context Protocol) server that gives LLMs access to web accessibility testing APIs. \n\nThis server uses the Deque Axe-core API and Puppeteer to allow LLMs to analyze web content for WCAG compliance and identify accessibility issues.\n\nNOTE: This is not an official MCP server from Deque Labs.\n\nLeave a star if you enjoyed the project! 🌟\n\n## Features\n\n- **Test web pages**: Test any public URL for accessibility issues\n- **Test HTML snippets**: Test raw HTML strings for accessibility issues\n- **WCAG compliance testing**: Check content against various WCAG standards (2.0, 2.1, 2.2)\n- **Customizable tests**: Specify which accessibility tags/standards to test against\n- **Rule exploration**: Get information about available accessibility rules\n- **Color contrast analysis**: Check color combinations for WCAG compliance\n- **ARIA validation**: Test proper usage of ARIA attributes\n- **Orientation lock detection**: Identify content that forces specific screen orientations\n\n## Installation\nTo use this server with Claude Desktop, you need to configure it in the MCP settings:\n\n**For macOS:**\nEdit the file at `'~/Library/Application Support/Claude/claude_desktop_config.json'`\n\n```\n{\n  \"mcpServers\": {\n    \"a11y-accessibility\": {\n    \"command\": \"npx\",\n    \"args\": [\n      \"-y\",\n      \"a11y-mcp-server\"\n    ]\n   }\n  }\n}\n```\n\n**For Windows:**\nEdit the file at `%APPDATA%\\Claude\\settings\\claude_mcp_settings.json`\n\n**For Linux:**\nEdit the file at `~/.config/Claude/settings/claude_mcp_settings.json`\nReplace `/path/to/axe-mcp-server/build/index.js` with the actual path to your compiled server file.\n\n\n## Available Tools\n\n### test_accessibility\n\nTests a URL for accessibility issues.\n\n**Parameters:**\n- `url` (required): The URL of the web page to test\n- `tags` (optional): Array of WCAG tags to test against (e.g., [\"wcag2aa\"])\n\nExample\n\n```\n{\n \"url\": \"https://example.com\",\n \"tags\": [\"wcag2aa\"]\n}\n```\n### test_html_string\n\nTests an HTML string for accessibility issues.\nParameters:\n\n* html (required): The HTML content to test\n* tags (optional): Array of WCAG tags to test against (e.g., [\"wcag2aa\"])\n\nExample\n\n```\n{\n  \"html\": \"\u003cdiv\u003e\u003cimg src='image.jpg'\u003e\u003c/div\u003e\",\n  \"tags\": [\"wcag2aa\"]\n}\n```\n\n### get_rules\n\nGet information about available accessibility rules with optional filtering.\n\n### check_color_contrast\n\nCheck if a foreground and background color combination meets WCAG contrast requirements.\n\n**Parameters:**\n\n- `foreground` (required): Foreground color in hex format (e.g., \"#000000\")\n- `background` (required): Background color in hex format (e.g., \"#FFFFFF\")\n- `fontSize` (optional): Font size in pixels (default: 16)\n- `isBold` (optional): Whether the text is bold (default: false)\n\nExample\n\n```\n{\n  \"foreground\": \"#777777\",\n  \"background\": \"#EEEEEE\",\n  \"fontSize\": 16,\n  \"isBold\": false\n}\n```\n\n### check_color_contrast\n\nCheck if ARIA attributes are used correctly in HTML.\n\n**Parameters:**\n\n- `html` (required): HTML content to test for ARIA attribute usage\n\nExample\n\n```\n{\n  \"html\": \"\u003cdiv role='button' aria-pressed='false'\u003eClick me\u003c/div\u003e\"\n}\n```\n\n### check_orientation_lock\n\nCheck if content forces a specific orientation.\n\n**Parameters:**\n\n- `html` (required): HTML content to test for orientation lock issues\n\nExample\n\n```\n{\n  \"html\": \"\u003chtml\u003e\u003chead\u003e\u003cmeta name='viewport' content='width=device-width, orientation=portrait'\u003e\u003c/head\u003e\u003cbody\u003eContent\u003c/body\u003e\u003c/html\u003e\"\n}\n```\n\n## Response Format\nThe server returns accessibility test results in a structured JSON format:\n```\n{\n  \"violations\": [\n    {\n      \"id\": \"color-contrast\",\n      \"impact\": \"serious\",\n      \"description\": \"Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds\",\n      \"help\": \"Elements must meet minimum color contrast ratio thresholds\",\n      \"helpUrl\": \"https://dequeuniversity.com/rules/axe/4.10/color-contrast\",\n      \"affectedNodes\": [\n        {\n          \"html\": \"\u003cdiv style=\\\"color: #aaa; background-color: #eee;\\\"\u003eLow contrast text\u003c/div\u003e\",\n          \"target\": [\"div\"],\n          \"failureSummary\": \"Fix any of the following: Element has insufficient color contrast of 1.98 (foreground color: #aaa, background color: #eee, font size: 12.0pt, font weight: normal)\"\n        }\n      ]\n    }\n  ],\n  \"passes\": 1,\n  \"incomplete\": 0,\n  \"inapplicable\": 2,\n  \"timestamp\": \"2025-04-25T16:45:33.655Z\",\n  \"url\": \"about:blank\",\n  \"testEngine\": {\n    \"name\": \"axe-core\",\n    \"version\": \"4.10.3\"\n  },\n  \"testRunner\": {\n    \"name\": \"axe\"\n  },\n  \"testEnvironment\": {\n    \"userAgent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/135.0.0.0 Safari/537.36\",\n    \"windowWidth\": 800,\n    \"windowHeight\": 600,\n    \"orientationAngle\": 0,\n    \"orientationType\": \"portrait-primary\"\n  }\n}\n```\n\n## Dependencies\n\n- @modelcontextprotocol/sdk\n- puppeteer\n- @axe-core/puppeteer\n- axe-core\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fronantakizawa%2Fa11ymcp","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fronantakizawa%2Fa11ymcp","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fronantakizawa%2Fa11ymcp/lists"}