MadTaco

Name: MadTaco
Author: madtaco-dev

by madtaco-devversion 1.1.0i★ –iRuns on your computer

Registry namedev.madtaco/mcp

Install

Overview

Description from the maker (original English)

Verification and trust checks for AI agents: validate, screen, propose, accounts, usage.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: MADTACO_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: MADTACO_API_BASE, MADTACO_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "madtaco": {
      "command": "npx",
      "args": [
        "-y",
        "@madtaco/mcp"
      ],
      "env": {
        "MADTACO_API_BASE": "your-value",
        "MADTACO_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add madtaco --env MADTACO_API_BASE=your-value --env MADTACO_API_KEY=your-value -- npx -y @madtaco/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "madtaco": {
      "command": "npx",
      "args": [
        "-y",
        "@madtaco/mcp"
      ],
      "env": {
        "MADTACO_API_BASE": "your-value",
        "MADTACO_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "madtaco": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@madtaco/mcp"
      ],
      "env": {
        "MADTACO_API_BASE": "your-value",
        "MADTACO_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

MADTACO_API_BASE env
MadTaco API base URL (default: https://api.madtaco.dev/v1)
MADTACO_API_KEY secret env
X-Api-Key for paid checks, usage, and proposals (free tools work without it)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain madtaco.dev (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32589 servers in this category
Published to the registry more recently than 17% of the other 32589 servers in this category
Basic checks equal to or better than 100% of the other 32589 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MadTaco safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: MADTACO_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Detailing Manager

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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Detailing Manager

by RadoslavMoshev

Connect your auto detailing studio's tasks, cars, clients and revenue to Claude or ChatGPT.

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

🌮 MadTaco — MCP Server

npm: @madtaco/mcp

Verification and utility API for AI agents. Validate tax IDs, screen sanctions, verify companies, inspect domains — prepaid USD credits. Failed checks are never charged.

This package is a stdio [MCP](https://modelcontextprotocol.io) server that wraps the public MadTaco API at https://api.madtaco.dev/v1. Every response includes credits_charged (0 for free operations). Prefer remote HTTP instead? See HTTP MCP below.

Docs

madtaco.dev — product site
Setup guide — Cursor, Claude, Smithery
API docs — OpenAPI reference
Agent skill — integration guide (MCP + REST)
llms.txt — full endpoint catalog
pricing.json — per-operation prices
Health — API status
Server card — tool metadata

Quick start (stdio)

npx @madtaco/mcp

Claude Desktop / Cursor

Claude Desktop config: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows). Cursor: .cursor/mcp.json in your project or global MCP settings.

"mcpServers": { "madtaco": { "command": "npx", "args": ["-y", "@madtaco/mcp"], "env": { "MADTACO_API_KEY": "your_api_key_here" } } } }

Without an API key: validate_tax_id, validate_iban, lookup_instrument, validate_email (syntax), validate_phone (format), create_account, verify_account.

With an API key (tier registered): get_usage, propose_check.

Funded account required (tier 2): paid screening/verification tools and validate_email/validate_phone full modes. Top up via POST /v1/billing/checkout or madtaco.dev billing.

Rate limits: 50 req/day anonymous (per IP), 100 req/day registered (per API key), 500/day included once funded — see llms.txt.

Try it

Validate the Chilean RUT 11.111.111-1 using MadTaco.

Check whether IBAN DE89370400440532013000 is valid.

Look up ticker CMG on exchange US.

Remote HTTP

Streamable HTTP MCP on the API subdomain — no npm install required:

"mcpServers": { "madtaco": { "url": "https://api.madtaco.dev/mcp", "headers": { "X-Api-Key": "your_api_key_here" } } } }

Authenticate with X-Api-Key or Authorization: Bearer. Same 13 tools as this stdio package.

Environment

Variable	Required	Default
`MADTACO_API_KEY`	For authenticated and paid tools	—
`MADTACO_API_BASE`	No	`https://api.madtaco.dev/v1`

Override for staging or local dev:

"env": { "MADTACO_API_BASE": "https://api.madtaco.dev/v1" }

Tools

All paths are relative to MADTACO_API_BASE (default https://api.madtaco.dev/v1).

Tool	API endpoint	Credits
`validate_tax_id`	`POST /validate/tax-id`	0
`validate_iban`	`POST /validate/iban`	0
`lookup_instrument`	`POST /lookup/instrument`	0
`validate_email`	`POST /validate/email`	0 (syntax) / 0.005 (full, tier 2)
`validate_phone`	`POST /validate/phone`	0 (format) / 0.005 (full, tier 2)
`screen_sanctions`	`POST /screen/sanctions`	0.10
`verify_company`	`POST /verify/company`	0.15
`inspect_domain`	`POST /inspect/domain`	0.05
`screen`	`POST /screen` + optional `GET /screens/{id}?wait=60`	sum of completed checks
`propose_check`	`POST /propose`	pledge hold only
`create_account`	`POST /accounts`	0
`verify_account`	`POST /accounts/verify`	0
`get_usage`	`GET /usage`	0

Not in MCP (REST only)

Call these directly against the API — see llms.txt:

GET /data/cl/{indicator} — Chilean indicators (UF, UTM, USD, EUR, IPC)
GET /balance — credit balance (get_usage includes balance)
GET /evidence/{id} — signed evidence URLs
GET /health — uptime check

Agent onboarding flow

create_account with an email → account_id + pending_verification
Human or agent reads the 6-digit code from email
verify_account → api_key (tier registered)
Fund the account via madtaco.dev billing or POST /v1/billing/checkout
Set MADTACO_API_KEY and run paid checks

Credentials never transit through MCP responses for human dashboard access — use POST /v1/accounts/invite-human when needed.

Development

Stdio transport only — this server calls the public HTTP API; no database or secrets beyond an optional API key.

git clone https://github.com/madtaco-dev/mcp.git

cd mcp npm install npm test npm run build MADTACO_API_KEY=... npm run dev

New tools ship as minor npm releases as the API grows. See llms.txt for the current tool list.

MadTaco

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Detailing Manager

README from the maker

🌮 MadTaco — MCP Server

Docs

Quick start (stdio)

Claude Desktop / Cursor

Try it

Remote HTTP

Environment

Tools

Not in MCP (REST only)

Agent onboarding flow

Development

License