Mexican Tax & Banking MCP Server

by ortamarco Your server? Claim it

local only

Mexican Tax & Banking runs on your own machine — the client starts it, so there is no endpoint to ping. 515 installs a week from npm. Last commit 13 Sep 2026.

Validate RFC, CURP, CLABE and NSS, read CFDI 4.0 invoices and check their SAT status. No keys.

Installs per day peak 282 · avg 9

a month agotoday

515

Installs / week

npm · mx-fiscal-mcp-server

Stars

0 open issues

13 Sep 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

What the code does

We read the source, 19 h ago · rules 3dff92dd89df

Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

Decodes a string and executes it src/index.ts:62

  const presented = Buffer.from(/^Bearer\s+(.+)$/i.exec(header ?? "")?.[1] ?? "");

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch Mexican Tax & Banking and you get told the day something new turns up.

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 Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mx-fiscal-mcp-server -- npx -y mx-fiscal-mcp-server

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mx-fiscal-mcp-server": {
      "args": [
        "-y",
        "mx-fiscal-mcp-server"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mx-fiscal-mcp-server]
command = "npx"
args = ["-y", "mx-fiscal-mcp-server"]

.cursor/mcp.json

{
  "mcpServers": {
    "mx-fiscal-mcp-server": {
      "args": [
        "-y",
        "mx-fiscal-mcp-server"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mx-fiscal-mcp-server": {
      "args": [
        "-y",
        "mx-fiscal-mcp-server"
      ],
      "command": "npx"
    }
  }
}

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Mexican Tax & Banking — questions

Answers built from our own checks of this server.

Why is there no uptime for Mexican Tax & Banking?

Mexican Tax & Banking runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package mx-fiscal-mcp-server was installed 515 times last week.

How do I connect Mexican Tax & Banking?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls mx-fiscal-mcp-server straight from npm; nothing to host, nothing to sign up for.

How many people use Mexican Tax & Banking?

The npm package mx-fiscal-mcp-server was installed 515 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Mexican Tax & Banking open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.