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mcp/harbor
Grok

Simples Nacional for Grok

io.github.mcp-dir/simples_nacional-mcp

Looks up a company's status in the Simples Nacional tax regime from the CNPJ, including opt-in and b

client:Grok transport:streamable-http tools:7

Install Simples Nacional in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "simples_nacional-mcp": {
      "type": "http",
      "url": "https://api.mcp.ai/p_simples_nacional"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

What Grok can do once it is connected

Simples Nacional in other clients

Simples Nacional MCP server