Pqc Tools vs Claude Critical Rules MCP

In-depth architectural comparison of the Pqc Tools and Claude Critical Rules 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 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 Claude Critical Rules MCP 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).

Feature & Specification Comparison

Specification	Pqc Tools quantakrypto Security	Claude Critical Rules MCP optimaquantum 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.	Automatic enforcement of critical rules for Claude AI preventing 96 documented failure patterns. Provides compliance verification checklist and rules summary via MCP tools.
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": {
    "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": {
    "optimaquantum-claude-critical-rules-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@optima-quantum/claude-critical-rules-mcp-new"
      ]
    }
  }
}

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