What is the key difference between Kakunin MCP and Emilia Protocol?

Kakunin 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 Kakunin 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 Kakunin MCP and Emilia Protocol free or paid?

Kakunin MCP operates under a Freemium model (API Key required). Emilia Protocol operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Kakunin MCP lists 3 tools with 4 views and 1 GitHub stars. Emilia Protocol lists 3 tools with 4 views and 617 GitHub stars.

Can I use both Kakunin 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.

Side-by-Side Model Context Protocol Comparison

Kakunin MCP vs Emilia Protocol

In-depth architectural comparison of the Kakunin 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

Kakunin MCP

Security · Local stdio

Quality: 61/100 (Good) | Auth: API Key required

Emilia Protocol

Security · Local stdio

Quality: 71/100 (Great) | Auth: No auth required

Verdict Summary: Choose Kakunin 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 Kakunin MCP when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: KAKUNIN_API_KEY, KAKUNIN_AGENT_ID.
Primary tools included: verify_agent_scope, check_risk_score, audit_log_append.

Explore Kakunin 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: ep_guard_action, ep_check_signoff, ep_verify_receipt.

Feature & Specification Comparison

Specification	Kakunin MCP kakunin-ai Security	Emilia Protocol emiliaprotocol Security
Summary	Compliance and identity for AI agents — verify an agent's certificate scope, read its behavioral risk score, and append to an immutable audit trail. X.509 identity issued via AWS KMS; MiCA / EU AI Act aligned. npx -y @kakunin/mcp	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

Kakunin MCP Tools (3)

verify_agent_scope

Check whether this agent is authorised to perform an action before executing it. Verifies the active X.509 certificate, permitted_actions scope, financial limits, and revocation status.

check_risk_score

Retrieve the agent's rolling 30-day risk score, band (`low`/`medium`/`high`), drift trend, and actionable guidance. No input required.

audit_log_append

Append a behavioral event to the agent's immutable audit log. Returns risk score + transaction ID. Events scoring ≥ 0.85 auto-trigger a certificate revocation check.

Emilia Protocol Tools (3)

ep_guard_action

Request authorization before an irreversible action: payments, wire transfers, fund releases, deletions, record or account changes, or sending messages with real-world effect. Submits the exact action for policy evaluation and human authorization. This MCP tool does not itself sit at the executor choke point: even after approval, the executor MUST match the returned action_hash and atomically consume the receipt before effect. If BLOCKED, poll ep_check_signoff with the receipt_id.

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).

Kakunin MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "kakunin-ai-kakunin-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@kakunin/mcp"
      ],
      "env": {
        "KAKUNIN_API_KEY": "YOUR_KAKUNIN_API_KEY_HERE",
        "KAKUNIN_AGENT_ID": "YOUR_KAKUNIN_AGENT_ID_HERE"
      }
    }
  }
}

Emilia Protocol Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

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

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