Legacy Shield vs MCP Audit

In-depth architectural comparison of the Legacy Shield 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?

L

Choose Legacy 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).

Explore Legacy Shield 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.

Explore MCP Audit Details

Feature & Specification Comparison

Specification	L Legacy Shield Security	MCP Audit P4ST4S Security
Summary	Zero-knowledge encrypted vault — persistent, encrypted storage for AI agents. EU-hosted.	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	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": {
    "legacy-shield": {
      "command": "npx",
      "args": [
        "-y",
        "legacy-shield"
      ]
    }
  }
}

{
  "mcpServers": {
    "p4st4s-mcp-audit": {
      "command": "go",
      "args": [
        "install",
        "github.com/P4ST4S/mcp-audit/cmd/mcp-audit@latest"
      ]
    }
  }
}

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