Receita Federal: NIRF vs Receita Federal: Cafir

In-depth architectural comparison of the Receita Federal: NIRF and Receita Federal: Cafir 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 Receita Federal: NIRF 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 Receita Federal: NIRF Details

Choose Receita Federal: Cafir 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 Receita Federal: Cafir Details

Feature & Specification Comparison

Specification	Receita Federal: NIRF Developer Tools	Receita Federal: Cafir Developer Tools
Summary	Receita Federal: NIRF, official-source lookup. Platform-hosted, pay per query with prepaid credit.	Receita Federal: Cafir, official-source lookup. Platform-hosted, pay per query with prepaid credit.
Category & Scope	Developer Tools	Developer Tools

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": {
    "receita-federal-nirf": {
      "command": "npx",
      "args": [
        "-y",
        "receita-federal-nirf"
      ]
    }
  }
}

{
  "mcpServers": {
    "receita-federal-cafir": {
      "command": "npx",
      "args": [
        "-y",
        "receita-federal-cafir"
      ]
    }
  }
}

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