What is the key difference between VAT Validator MCP and Emilia Protocol?

VAT Validator MCP belongs to the Security category with local stdio execution, while Emilia Protocol belongs to the Security category with local stdio execution.

How do I install VAT Validator MCP or Emilia Protocol 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 VAT Validator MCP and Emilia Protocol free or paid?

VAT Validator MCP operates under a Free / Open Source model (No auth required). Emilia Protocol operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

VAT Validator MCP lists 0 tools with 0 views and 0 GitHub stars. Emilia Protocol lists 6 tools with 2 views and 798 GitHub stars.

Can I use both VAT Validator MCP and Emilia Protocol 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 VAT Validator MCP or Emilia Protocol 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 VAT Validator MCP and Emilia Protocol free to use, or do they require API keys?

VAT Validator MCP is listed under a Free / Open Source model with No auth required . Emilia Protocol 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 VAT Validator MCP and Emilia Protocol at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both vat-validator-mcp and emiliaprotocol-emilia-protocol 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, VAT Validator MCP has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Emilia Protocol holds a Quality Score of 65 /100 ( Great ) with 2 views, 0 installs, and 798 GitHub stars.

Side-by-Side Model Context Protocol Comparison

VAT Validator MCP vs Emilia Protocol

In-depth architectural comparison of the VAT Validator MCP and Emilia Protocol 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

VAT Validator MCP

Security · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Emilia Protocol

Security · Local stdio

Quality: 65/100 (Great) | Auth: No auth required

Verdict Summary: Choose VAT Validator MCP if you need specialized Security tools running via a local process. Choose Emilia Protocol if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose VAT Validator MCP when:

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

Explore VAT Validator MCP Details

Choose Emilia Protocol when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Named-human approval for irreversible actions, Offline-verifiable Ed25519 Trust Receipts, Trust profile access.

Explore Emilia Protocol Details

Feature & Specification Comparison

Specification	V VAT Validator MCP Security	Emilia Protocol emiliaprotocol Security
Summary	Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.	Human sign-off + trust receipts for AI agents: requires a named human's approval before an irreversible action (payment release, record change, deploy), then mints an offline-verifiable Ed25519 Trust Receipt. Also exposes trust profiles, receipt verification, disputes, and delegation. Apache-2.0; policy engine formally verified. Install: npx -y @emilia-protocol/mcp-server.
Category & Scope	Security

Tools & Capabilities Breakdown

VAT Validator MCP Tools (0)

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

Emilia Protocol Tools (6)

Named-human approval for irreversible actions

Offline-verifiable Ed25519 Trust Receipts

Trust profile access

Receipt verification

Dispute handling

Delegation support

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).

VAT Validator MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "vat-validator-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "vat-validator-mcp"
      ]
    }
  }
}

Emilia Protocol Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "emiliaprotocol-emilia-protocol": {
      "command": "npx",
      "args": [
        "-y",
        "@emilia-protocol/mcp-server"
      ]
    }
  }
}

Frequently Asked Questions

VAT Validator MCP is categorized under Security and uses a local stdio subprocess. In contrast, Emilia Protocol belongs to Security using local stdio subprocess. Select VAT Validator MCP when you need capabilities focused on security and Emilia Protocol when you require tools for security.

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