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Mcp Nfe Br

io.github.cmendezs/mcp-nfe-br · v0.9.1

MCP server for Brazilian e-invoicing: NF-e and NFC-e (modelo 55/65), schema 4.00, SEFAZ.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add mcp-nfe-br -e BR_READ_ONLY=<BR_READ_ONLY> -e BR_CTE_READ_ONLY=<BR_CTE_READ_ONLY> -e LOG_LEVEL=<LOG_LEVEL> -- uvx mcp-nfe-br==0.9.1
claude_desktop_config.json
{
  "mcpServers": {
    "mcp-nfe-br": {
      "command": "uvx",
      "args": [
        "mcp-nfe-br==0.9.1"
      ],
      "env": {
        "BR_READ_ONLY": "<BR_READ_ONLY>",
        "BR_CTE_READ_ONLY": "<BR_CTE_READ_ONLY>",
        "LOG_LEVEL": "<LOG_LEVEL>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp-nfe-br": {
      "command": "uvx",
      "args": [
        "mcp-nfe-br==0.9.1"
      ],
      "env": {
        "BR_READ_ONLY": "<BR_READ_ONLY>",
        "BR_CTE_READ_ONLY": "<BR_CTE_READ_ONLY>",
        "LOG_LEVEL": "<LOG_LEVEL>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-nfe-br": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-nfe-br==0.9.1"
      ],
      "env": {
        "BR_READ_ONLY": "<BR_READ_ONLY>",
        "BR_CTE_READ_ONLY": "<BR_CTE_READ_ONLY>",
        "LOG_LEVEL": "<LOG_LEVEL>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
BR_READ_ONLY
Optional		Master switch. Set to '1' to disable all write-side tools across NF-e, NFC-e, NFS-e, AND CT-e (br__submit_nfe, br__distribute_dfe, br__submit_nfse, br__cancel_nfse, br__submit_cte, br__cancel_cte, br__correct_cte). Read-only mode for safe exploration. Setting only this variable is sufficient to dis…
BR_CTE_READ_ONLY
Optional		Set to '1' to disable the three CT-e write-side tools (br__submit_cte, br__cancel_cte, br__correct_cte). Independent of BR_READ_ONLY — either variable being set to '1' is sufficient to block CT-e writes; use this one to gate CT-e alone while leaving NF-e/NFS-e writes enabled.
LOG_LEVEL
Optional		Logging level: DEBUG, INFO (default), WARNING, or ERROR

Details

Package[email protected] (PYPI, stdio)
First published12 Sep 2026
Last updated12 Sep 2026
Registry nameio.github.cmendezs/mcp-nfe-br

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