SEFAZ SP DEC: Caixa Postal vs Ruv Swarm

In-depth architectural comparison of the SEFAZ SP DEC: Caixa Postal and Ruv Swarm 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 SP DEC: Caixa Postal 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 SP DEC: Caixa Postal Details

R

Choose Ruv Swarm 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 Ruv Swarm Details

Feature & Specification Comparison

Specification	SEFAZ SP DEC: Caixa Postal Developer Tools	R Ruv Swarm Developer Tools
Summary	SEFAZ SP DEC: Caixa Postal, official-source lookup. Platform-hosted, pay per query with prepaid cred	Neural network swarm orchestration with WebAssembly acceleration and MCP integration
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": {
    "sefaz-sp-dec-caixa-postal": {
      "command": "npx",
      "args": [
        "-y",
        "sefaz-sp-dec-caixa-postal"
      ]
    }
  }
}

{
  "mcpServers": {
    "ruv-swarm": {
      "command": "npx",
      "args": [
        "-y",
        "ruv-swarm@latest"
      ]
    }
  }
}

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