MCP Nfe Io runs on your own machine — the client starts it, so there is no endpoint to ping. 54 installs a week from npm. Last commit 27 Sep 2026.
MCP server for NFe.io — NF-e, NFS-e, CNPJ, CEP
What the code does
We read the source, 3 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
этот файл ставится пользователю, но в репозитории его нет
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-nfe-io -e 'NFEIO_API_KEY=<NFEIO_API_KEY>' -- npx -y @codespar/mcp-nfe-io{
"mcpServers": {
"mcp-nfe-io": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nfe-io"
],
"env": {
"NFEIO_API_KEY": "<NFEIO_API_KEY>"
}
}
}
}[mcp_servers.mcp-nfe-io]
command = "npx"
args = ["-y", "@codespar/mcp-nfe-io"]
env = { NFEIO_API_KEY = "<NFEIO_API_KEY>" }{
"mcpServers": {
"mcp-nfe-io": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nfe-io"
],
"env": {
"NFEIO_API_KEY": "<NFEIO_API_KEY>"
}
}
}
}{
"servers": {
"mcp-nfe-io": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nfe-io"
],
"env": {
"NFEIO_API_KEY": "<NFEIO_API_KEY>"
}
}
}
}Put your own value in place of
<NFEIO_API_KEY> (API key for NFe.io (issuance + query)).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
NFEIO_COMPANY_ID (Default company ID (CNPJ or NFe.io company UUID) to use when not provided per-call).
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MCP Nfe Io — questions
Answers built from our own checks of this server.