What is the key difference between Kakunin MCP and Haldir?

Kakunin MCP belongs to the Security category with local stdio execution, while Haldir belongs to the Security category with local stdio execution.

How do I install Kakunin MCP or Haldir 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 Haldir free or paid?

Kakunin MCP operates under a Freemium model (API Key required). Haldir operates under a Freemium model (API Key required).

Which MCP server has more tools and community activity?

Kakunin MCP lists 3 tools with 4 views and 1 GitHub stars. Haldir lists 6 tools with 3 views and 4 GitHub stars.

Can I use both Kakunin MCP and Haldir 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 Haldir

In-depth architectural comparison of the Kakunin MCP and Haldir 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

Haldir

Security · Local stdio

Quality: 37/100 (Fair) | Auth: API Key required

Verdict Summary: Choose Kakunin MCP if you need specialized Security tools running via a local process. Choose Haldir 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 Haldir 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: HALDIR_ENCRYPTION_KEY.
Primary tools included: Scoped agent sessions, AES-256-GCM encrypted secret vault, Hash-chained audit trail.

Feature & Specification Comparison

Specification	Kakunin MCP kakunin-ai Security	Haldir 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	Guardian layer for AI agents: identity, secrets, audit via MCP.
Category & Scope	Security

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.

Haldir Tools (6)

Scoped agent sessions

AES-256-GCM encrypted secret vault

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"
      }
    }
  }
}

Haldir Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "haldir": {
      "command": "uvx",
      "args": [
        "haldir"
      ],
      "env": {
        "HALDIR_ENCRYPTION_KEY": "YOUR_HALDIR_ENCRYPTION_KEY_HERE"
      }
    }
  }
}

Frequently Asked Questions

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

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