OPNSenseMCP vs Emilia Protocol

In-depth architectural comparison of the OPNSenseMCP 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.

Which MCP Server Should You Choose?

Choose OPNSenseMCP when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: OPNSENSE_HOST, OPNSENSE_API_KEY, OPNSENSE_API_SECRET, OPNSENSE_VERIFY_SSL.
• Primary tools included: firewall_list_rules, firewall_create_rule, firewall_update_rule.

Explore OPNSenseMCP 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: ep_guard_action, ep_check_signoff, ep_verify_receipt.

Feature & Specification Comparison

Specification	OPNSenseMCP vespo92 Security	Emilia Protocol emiliaprotocol Security
Summary	MCP Server for managing & interacting with Open Source NGFW OPNSense via Natural Language	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

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "vespo92-opnsensemcp": {
      "command": "npx",
      "args": [
        "-y",
        "opnsense-mcp-server"
      ],
      "env": {
        "OPNSENSE_HOST": "YOUR_OPNSENSE_HOST_HERE",
        "OPNSENSE_API_KEY": "YOUR_OPNSENSE_API_KEY_HERE",
        "OPNSENSE_API_SECRET": "YOUR_OPNSENSE_API_SECRET_HERE",
        "OPNSENSE_VERIFY_SSL": "YOUR_OPNSENSE_VERIFY_SSL_HERE"
      }
    }
  }
}

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

Related MCP Server Comparisons