SEFAZ ES: NFC E vs Packkit

In-depth architectural comparison of the SEFAZ ES: NFC E and Packkit 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 SEFAZ ES: NFC E when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore SEFAZ ES: NFC E Details

Choose Packkit when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Packkit Details

Feature & Specification Comparison

Specification	SEFAZ ES: NFC E Developer Tools	Packkit Developer Tools
Summary	SEFAZ ES: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.	Scaffold modern npm packages, CLIs, services and apps as a native tool for AI agents.
Category & Scope	Developer Tools	Developer Tools
Quality signal

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": {
    "sefaz-es-nfc-e": {
      "command": "npx",
      "args": [
        "-y",
        "sefaz-es-nfc-e"
      ]
    }
  }
}

{
  "mcpServers": {
    "packkit-2": {
      "command": "npx",
      "args": [
        "-y",
        "npx"
      ]
    }
  }
}

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