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Aria Validate MCP Server
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Aria Validate MCP Server

The ARIA validation MCP server uses the aria - query library to validate the effectiveness of ARIA attributes and role attributes, providing support for accessible web development.
Developer toolsEducation and learning tools#ARIA validation#Accessibility#MCP server#Web accessibility.TypeScript
2.5 points
5.3K
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Overview

Installation

Content Details

Alternatives

What is the ARIA Validate MCP Server?

The ARIA Validate MCP Server is a tool specifically designed to validate web page accessibility standards. It is built on the Model Context Protocol (MCP) and can check the correctness of ARIA attributes and role attributes to ensure that web page content is accessible to users of assistive technologies (such as screen reader users).

How to use the ARIA Validate MCP Server?

Integrate this server into your development environment by configuring an MCP client (such as Claude Desktop). After configuration, you can directly ask the AI assistant questions related to ARIA, and the server will provide accurate validation results and suggestions.

Applicable scenarios

1. Check the correctness of ARIA attributes during front - end development. 2. Validate accessibility compliance during code review. 3. Use as a reference tool when learning ARIA specifications. 4. Conduct accessibility checks in the automated testing process.

Main features

ARIA attribute validation
Validate whether ARIA attributes (such as aria - labelledby, aria - hidden, etc.) are used effectively in specific roles.
Role attribute check
Check whether the role attribute complies with ARIA specifications to ensure correct role definition.
Specification query
Query various definitions, allowed values, and best practices in the ARIA specification.
MCP integration
Integrate with various AI assistants and development tools through the standard MCP protocol.
Advantages
Improve development efficiency: Quickly validate ARIA attributes without manually referring to complex specifications.
High accuracy: Based on the aria - query library, ensure that validation results comply with the latest ARIA standards.
Easy to integrate: The standard MCP protocol supports multiple client tools.
Real - time feedback: Get immediate accessibility suggestions during development.
Limitations
Requires MCP client support: Must be used through MCP - supported tools such as Claude Desktop.
Only validates syntax: Does not check the actual accessibility experience or screen reader compatibility.
Depends on external libraries: Based on the aria - query library, updates may lag behind specification changes.

How to use

Environment preparation
Ensure that Node.js version 24.x or higher and Deno version 2.x or higher are installed.
Configure the MCP client
Add server configuration to the configuration file of an MCP client such as Claude Desktop.
Start and use
Restart the MCP client, and then you can validate ARIA attributes by asking questions in natural language.

Usage examples

Validate ARIA attributes of a navigation component
When developing a navigation menu, it is necessary to ensure that ARIA attributes are set correctly so that screen reader users can understand the navigation structure.
Check the accessibility of form controls
When creating a form, it is necessary to ensure that all input controls have correct labels and descriptions.
Learn ARIA landmark roles
New developers need to understand all available ARIA landmark roles to correctly mark page areas.

Frequently Asked Questions

Can this tool replace manual accessibility testing?
Is an internet connection required to use it?
Which MCP clients are supported?
How to update the ARIA specification version?

Related resources

ARIA official specification
The official W3C ARIA specification document.
aria - query library
The underlying ARIA query library used by this server.
Model Context Protocol
The official specification of the MCP protocol.
Web accessibility guide
Comprehensive web accessibility resources and guides.

Installation

Copy the following command to your Client for configuration
{
  "mcpServers": {
    "aria-validate-mcp": {
      "command": "deno",
      "args": [
        "run",
        "--allow-read",
        "/path/to/aria-validate-mcp-server/index.ts"
      ]
    }
  }
}
Note: Your key is sensitive information, do not share it with anyone.

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