Pqc Tools vs Shield

In-depth architectural comparison of the Pqc Tools and Shield 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 Pqc Tools when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: OAuth 2.0 (Freemium).
• You have access to required keys: QUANTAKRYPTO_API_KEY, MCP_OAUTH_CLIENT_ID, MCP_OAUTH_CLIENT_SECRET.
• Primary tools included: Detects vulnerable crypto in 14+ languages and infrastructure configs, Outputs SARIF, JSON, CBOM, evidence, and OpenVEX reports, Supports compliance mandates with build-fail enforcement.

Explore Pqc Tools Details

Choose Shield 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: Pre-execution MCP call guardrails, TOFU tool-catalog pinning, Tool description and result scanning.

Feature & Specification Comparison

Specification	Pqc Tools quantakrypto Security	Shield AperionAI Security
Summary	Post-quantum readiness for AI coding agents: scan code for quantum-vulnerable cryptography (RSA/ECDH/ECDSA/DH), explain the harvest-now-decrypt-later exposure, get NIST ML-KEM/ML-DSA/SLH-DSA (and hybrid) migration guidance, verify fixes, and check dependencies. Content-based/advisory tools only. Run local (npx @quantakrypto/mcp) or the hosted OAuth endpoint at mcp.quantakrypto.com.	Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. MCP supply-chain protection: TOFU tool-catalog pinning against rug pulls, plus tool-description and tool-result scanning for tool poisoning and prompt injection. 51 starter rules, approval gates, audit logging. Single binary, Apache-2.0.

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": {
    "quantakrypto-pqc-tools": {
      "command": "npx",
      "args": [
        "-y",
        "@quantakrypto/qscan"
      ],
      "env": {
        "QUANTAKRYPTO_API_KEY": "YOUR_QUANTAKRYPTO_API_KEY_HERE",
        "MCP_OAUTH_CLIENT_ID": "YOUR_MCP_OAUTH_CLIENT_ID_HERE",
        "MCP_OAUTH_CLIENT_SECRET": "YOUR_MCP_OAUTH_CLIENT_SECRET_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "aperionai-shield": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-postgres"
      ]
    }
  }
}

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