What is the key difference between A11y Check and Design Constraint Validator?

A11y Check belongs to the Browser Automation category with local stdio execution, while Design Constraint Validator belongs to the Browser Automation category with local stdio execution.

How do I install A11y Check or Design Constraint Validator in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are A11y Check and Design Constraint Validator free or paid?

A11y Check operates under a Free / Open Source model (No auth required). Design Constraint Validator operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

A11y Check lists 0 tools with 0 views and 2 GitHub stars. Design Constraint Validator lists 0 tools with 0 views and 0 GitHub stars.

Can I use both A11y Check and Design Constraint Validator together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install A11y Check or Design Constraint Validator in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are A11y Check and Design Constraint Validator free to use, or do they require API keys?

A11y Check is listed under a Free / Open Source model with No auth required . Design Constraint Validator operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both A11y Check and Design Constraint Validator at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both a11y-check and design-constraint-validator as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, A11y Check has a Quality Score of 41 /100 ( Fair ) with 0 views, 0 installs, and 2 GitHub stars. Design Constraint Validator holds a Quality Score of 37 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

A11y Check vs Design Constraint Validator

In-depth architectural comparison of the A11y Check and Design Constraint Validator MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

A11y Check

Browser Automation · Local stdio

Quality: 41/100 (Fair) | Auth: No auth required

Design Constraint Validator

Browser Automation · Local stdio

Quality: 37/100 (Fair) | Auth: No auth required

Verdict Summary: Choose A11y Check if you need specialized Browser Automation tools running via a local process. Choose Design Constraint Validator if your workspace requires Browser Automation integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose A11y Check when:

You need dedicated capabilities in the Browser Automation domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore A11y Check Details

Choose Design Constraint Validator when:

You need dedicated capabilities in the Browser Automation domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Design Constraint Validator Details

Feature & Specification Comparison

Specification	A11y Check Browser Automation	D Design Constraint Validator Browser Automation
Summary	Web accessibility scanning (WCAG 2.2 AA + KWCAG 2.2) with Korean remediation guides	Validate design tokens for accessibility, scales, and design-system constraint consistency.
Category & Scope	Browser Automation	Browser Automation
Quality signal

Tools & Capabilities Breakdown

A11y Check Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Design Constraint Validator Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

A11y Check Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "a11y-check": {
      "command": "npx",
      "args": [
        "-y",
        "@a11ychk/mcp"
      ]
    }
  }
}

Design Constraint Validator Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "design-constraint-validator": {
      "command": "npx",
      "args": [
        "-y",
        "design-constraint-validator"
      ]
    }
  }
}

Frequently Asked Questions

A11y Check is categorized under Browser Automation and uses a local stdio subprocess. In contrast, Design Constraint Validator belongs to Browser Automation using local stdio subprocess. Select A11y Check when you need capabilities focused on browser automation and Design Constraint Validator when you require tools for browser automation.

More alternatives to A11y Check More alternatives to Design Constraint Validator Browser Automation category hub