Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Hexadata Tools

by 4robotversion 1.0.0i★ –iRuns in the cloud
Registry nameio.github.4robot/hexadata-tools

Install

Overview

Description from the maker (original English)

15 deterministic validation tools for AI agents: tax IDs (15 countries), VAT, IBAN, LEI, HS codes.

PopNx MCP’s three pillars

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

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 in the cloud
  • Transport: Streamable HTTP
  • Category: Accounting, finance & tax
  • You need to fill in: Authorization

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: Authorization

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

You need

Which app do you use?

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

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http hexadata-tools https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp --header 'Authorization: your-value'

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": {
    "hexadata-tools": {
      "url": "https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp",
      "headers": {
        "Authorization": "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": {
    "hexadata-tools": {
      "type": "http",
      "url": "https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp",
      "headers": {
        "Authorization": "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 address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

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

Values you fill in

  • Authorization secret required HTTP header
    Apify API token as a Bearer token (https://console.apify.com/settings/integrations), or an x402 prepaid token from Apify AGI

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account 4robot, which owns the repo

  • … 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 checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 1720 servers in this category
  • Published to the registry more recently than 82% of the other 1720 servers in this category
  • Basic checks equal to or better than 100% of the other 1720 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 Hexadata Tools 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: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 8 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

Servers in the same category from other makers, sorted by stars.

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

Finance Toolkit

by JerBouma

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computer or cloud★ 5,496MITUpdated yesterday
Install

SolidInvoice

by SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Runs in the cloud★ 981MITUpdated 7 days ago
Install

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated 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.

Hexadata Tools — business validation MCP server for AI agents

Hexadata Tools is a remote MCP server (Streamable HTTP, hosted on Apify) with 15 deterministic tools that an AI agent should call instead of guessing: check digits, official tables and official calculations. No LLM inside: the same input always gives the same answer, nothing is stored, and you pay per call ($0.005 per single call, $0.002 per item in batches; invalid input is free).

Tools

ToolUse this when…Source
validate_tax_idyou need to check a company/taxpayer ID from MX, ES, AR, CL, CO, BR, GB, US, IT, FR, DE, PE, CA, AU or IN (RFC, NIF/CIF, CUIT, RUT, NIT, CNPJ/CPF, UK VAT, EIN, Partita IVA, SIREN/SIRET, USt-IdNr, RUC, BN, ABN/ACN, GSTIN)official check-digit algorithms
validate_vat_euyou need to confirm an EU VAT number is registered (reverse charge)VIES (European Commission)
validate_ibanyou need to validate an IBAN and split bank/branch/accountISO 13616 + IBAN registry
lookup_leiyou need the legal entity behind an LEI, or the LEI of a company nameGLEIF
lookup_postal_codeyou need city/region/coordinates for a postal code in 120+ countries (Mexico with colonia/municipio/estado)GeoNames (CC BY)
validate_bank_accountyou need to verify a Mexican CLABE (with bank name), a US ABA routing number or a SWIFT/BICBanxico SPEI list, ABA rules, ISO 9362
normalize_phoneyou need a phone number in E.164 with country and line typelibphonenumber
validate_email_domainyou need to know if an e-mail is well-formed and its domain receives mail (MX, disposable, free provider)DNS + open blocklist
get_fx_rateyou need an official exchange rate for a date (30+ currencies, cross rates)ECB, Banxico FIX
business_daysyou need to add/count business days or list public holidays in 200+ countriesNager.Date, Mexican LFT art. 74
lookup_industry_codeyou need a NAICS, NACE, CPV or SCIAN code for an activity, or its hierarchyCensus, Eurostat, EU Publications Office, INEGI
lookup_hs_codeyou need a customs tariff code (US HTS 10 digits, EU CN8) and the US duty rateUSITC, Eurostat
get_vat_ratesyou need the standard and reduced VAT/GST rates of 35 countries for a dateTEDB + national laws (versioned table)
lookup_sat_catalogyou need a Mexican CFDI 4.0 catalog value (product key, unit, CFDI use, tax regime, payment form/method…)SAT official workbook
calc_payroll_mxyou need Mexican ISR withholding, employment subsidy, IMSS per branch, Infonavit and net pay for a salaryDOF, INEGI, Ley del Seguro Social (2026 tables)

Connect in one step

Direct server URL (Streamable HTTP):

https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp

Authentication: Authorization: Bearer (free Apify account with monthly credit, or an x402 prepaid token bought with USDC, no account needed).

Or through the Apify MCP server, next to any other Actor:

https://mcp.apify.com?tools=hexadatalabs/business-validation-tools-mcp
Claude Desktop, Cursor, Windsurf, VS Code (JSON config)
{

"mcpServers": { "hexadata-validation": { "url": "https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp", "headers": { "Authorization": "Bearer " } } } }

Claude Code
claude mcp add --transport http hexadata-validation https://hexadatalabs--business-validation-tools-mcp.apify.actor/mcp --header "Authorization: Bearer <APIFY_TOKEN>"

Example prompts

  • "Validate these supplier tax IDs: MX EKU9003173C9, ES B12345674 and BR 11.222.333/0001-81, and tell me which are malformed."
  • "Is IE6388047V registered for VAT, and what company is it?"
  • "Check this IBAN before I pay: DE89 3704 0044 0532 0130 00. Which bank code is it?"
  • "Which SAT product key and unit should I use to invoice software development services in Mexico, and what does a 20,000 MXN monthly salary cost the employer in 2026?"
  • "What is the HTS code and US duty rate for stainless steel kitchen sinks, and the VAT rate in Germany today?"
  • "Add 10 business days to 2026-12-18 in Mexico and list the holidays skipped."

Pricing

$0.005 per single-item call, $0.002 per item when a call carries 2–500 items. Items answered with INVALID_INPUT, UNSUPPORTED_COUNTRY or SOURCE_UNAVAILABLE are never charged. 1,000 IBAN checks in batches ≈ $2; 100 Mexican payroll calculations ≈ $0.20.

Links

  • Actor page and full documentation: https://apify.com/hexadatalabs/business-validation-tools-mcp
  • All Hexadata Actors: https://apify.com/hexadatalabs
  • Issues and feature requests (new countries, catalogs, code systems): the Issues tab of the Actor.
Ask PopNx