Unphurl MCP vs MCP Audit

In-depth architectural comparison of the Unphurl MCP and MCP Audit 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 Unphurl 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: UNPHURL_API_KEY.
• Primary tools included: Analyze URLs across seven signal dimensions, Return configurable 0-100 risk scores, Batch-check up to 500 URLs.

Explore Unphurl MCP Details

Choose MCP Audit 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: Stdio and HTTP MCP proxying, JSONL and SQLite audit storage, HMAC-SHA256 audit signing.

Feature & Specification Comparison

Specification	Unphurl MCP 123Ergo Security	MCP Audit P4ST4S Security
Summary	URL intelligence for AI agents. 13 tools for security signals and data quality: redirect behaviour, brand impersonation detection, domain age, SSL validation, parked detection, URL structural analysis, DNS enrichment.	Transparent Go proxy that intercepts, signs, rate-limits, redacts, and audits all MCP JSON-RPC tool calls without modifying client or server.
Category & Scope	Security

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": {
    "123ergo-unphurl-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "unphurl"
      ],
      "env": {
        "UNPHURL_API_KEY": "YOUR_UNPHURL_API_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "p4st4s-mcp-audit": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem"
      ]
    }
  }
}

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