Shieldapi MCP vs Beelzebub

In-depth architectural comparison of the Shieldapi MCP and Beelzebub 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 Shieldapi MCP when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: other (Freemium).
• You have access to required keys: SHIELDAPI_URL, SHIELDAPI_WALLET_PRIVATE_KEY.
• Primary tools included: check_url, check_password, check_password_range.

Explore Shieldapi MCP Details

Choose Beelzebub 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: MCP, SSH, HTTP, TCP, and TELNET decoys, YAML service definitions with regex matching, OpenAI and Ollama response generation.

Feature & Specification Comparison

Specification	Shieldapi MCP alberthild Security	Beelzebub mariocandela Security
Summary	Security intelligence for AI agents: password breach checks (900M+ HIBP hashes), email/domain/IP/URL reputation, prompt injection detection (200+ patterns), and skill supply chain scanning. Pay-per-request via x402 USDC micropayments or free demo mode, no API key needed.	Beelzebub is a honeypot framework that lets you build honeypot tools using MCP. Its purpose is to detect prompt injection or malicious agent behavior. The underlying idea is to provide the agent with tools it would never use in its normal work.
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": {
    "alberthild-shieldapi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "shieldapi-mcp"
      ],
      "env": {
        "SHIELDAPI_URL": "YOUR_SHIELDAPI_URL_HERE",
        "SHIELDAPI_WALLET_PRIVATE_KEY": "YOUR_SHIELDAPI_WALLET_PRIVATE_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "mariocandela-beelzebub": {
      "command": "npx",
      "args": [
        "-y",
        "mariocandela-beelzebub"
      ]
    }
  }
}

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