Kastell vs Agentaegis MCP

In-depth architectural comparison of the Kastell and Agentaegis MCP 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 Kastell 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: Server security audits with remediation, SSH hardening and fail2ban setup, UFW firewall management.

Explore Kastell Details

Choose Agentaegis MCP when:

• You need dedicated capabilities in the Security domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: SUPABASE_URL, SUPABASE_SERVICE_KEY, X402_PAYEE_ADDRESS, NVD_API_KEY, ABUSEIPDB_API_KEY, OTX_API_KEY, ABUSECH_API_KEY, HIBP_API_KEY.
• Primary tools included: compliance_framework_check, evidence_collect, control_gap_analysis.

Feature & Specification Comparison

Specification	Kastell kastelldev Security	Agentaegis MCP astafford8488 Security
Summary
Category & Scope	Security	Security
Quality signal

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": {
    "kastelldev-kastell": {
      "command": "npx",
      "args": [
        "-y",
        "kastell"
      ]
    }
  }
}

{
  "mcpServers": {
    "astafford8488-agentaegis-mcp": {
      "url": "https://your-host/mcp"
    }
  }
}

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