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

Toolrail

by toolrail.devversion 1.1.0i★ –iRuns in the cloud
Registry namedev.toolrail/mcp

Install

Overview

Description from the maker (original English)

Chile and LATAM data: UF, RUT, business days, FX, VAT for 17 countries, tax units. Free daily quota.

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

Install

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

Before you install

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://toolrail.dev/mcp

Run this in your terminal

claude mcp add --transport http toolrail https://toolrail.dev/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "toolrail": {
      "url": "https://toolrail.dev/mcp"
    }
  }
}

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": {
    "toolrail": {
      "type": "http",
      "url": "https://toolrail.dev/mcp"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://toolrail.dev/mcp

Menu names can differ slightly by plan and over time.

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

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

What it can do

Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.

  • vat_rates

    Return the standard and reduced VAT rates of one country, or the European table when country is omitted. Covers EU-27 plus UK, CH, NO and 17 Latin American countries. Use vat_price to apply a European rate to an amount, latam_iva to calculate Latin American VAT, and vat_validate

  • vat_validate

    Check whether an EU VAT number is registered in the European Commission's VIES system and return the company name and address when the member state discloses them. Use it to verify a business customer before invoicing. VIES is sometimes unavailable; that returns an error, not 'in

  • vat_price

    Calculate net, VAT amount and gross for a price in one country, applying its standard or reduced rate. Use it for European quotes and invoices; Latin American codes also work. Use vat_rates when you only need the rate. Free demo with a daily quota; production volume: POST /vat/pr

  • fx_convert

    Convert an amount between two of the ~30 currencies published by the European Central Bank (including USD, EUR, GBP, JPY, BRL, MXN), today or on a past date since 1999. Returns rate, converted amount and observation date. For CLP, ARS, COP or PEN use latam_fx or the country tools

  • fx_rates

    Return all European Central Bank reference rates against one base currency, today or on a past date. Use it when you need many rates at once; use fx_convert for a single conversion. Free demo with a daily quota; production volume: GET /fx/rates via x402.

  • days_holidays

    List the official public holidays of a country for a year, with local and English names and whether each is nationwide. Covers the countries supported by Nager.Date. For Chile, cl_feriados uses a curated statutory table and is preferred. Free demo with a daily quota; production v

  • days_business_days

    Return the date that falls N business days after a start date, skipping weekends and the country's public holidays. Use it for deadlines and delivery dates outside Chile; for Chilean legal deadlines use cl_dias_habiles. Free demo with a daily quota; production volume: GET /days/b

  • validate_iban

    Check an IBAN's mod-97 check digits and its country-specific length for 88 countries, and return the formatted IBAN and BBAN. Use it to catch typos before a bank transfer; it does not confirm the account exists. Free demo with a daily quota; production volume: POST /validate/iban

  • validate_phone

    Check whether a phone number is valid for its region and return its type (mobile, fixed line) and E.164, international and national formats, using Google libphonenumber for ~240 regions. Use it before saving a contact or sending SMS or WhatsApp. Free demo with a daily quota; prod

  • validate_tax_id

    Check the format and check digit of a tax ID: RUT (CL), CUIT/CUIL (AR), CPF/CNPJ including alphanumeric CNPJ (BR), RFC (MX), RUC (PE), NIT (CO), NIF/NIE (ES). Use cl_rut for Chile when you also want the normalized format. Does not confirm registration with the tax authority. Free

  • latam_indexacion

    Return the official value of a Latin American inflation-indexed unit (UF Chile, UVA Argentina, UVR Colombia, UDI Mexico) for today, and optionally convert an amount of units to local currency. Use it for contracts, rents and loans expressed in these units. For UF on a past date o

  • latam_iva

    Return the VAT rate (IVA, IGV, ITBIS) of one of 17 Latin American countries and, given an amount, calculate net, tax and gross. Omit pais for the full table. Brazil is excluded because it has no single rate. Use vat_price for European countries. Free demo with a daily quota; prod

  • latam_unidades_tributarias

    Return the official value of an annual tax unit (UIT Peru, UVT Colombia, UMA Mexico) for a date, with its legal act, and convert N units to local currency. Use it when a fine, fee or tax threshold is stated in these units. For Chile's UTM use cl_indicadores. Free demo with a dail

  • latam_dolar_argentina

    Return the Argentine peso's official and blue (parallel market) dollar buy/sell quotes, euro quotes and the official-blue gap percentage, with the source's update time. Use it for Argentina-specific pricing; use latam_fx for all Latin American currencies at once. Free demo with a

  • latam_fx

    Return official exchange rates against the US dollar for CLP, ARS (official and blue), BRL (PTAX), MXN (FIX), COP (TRM) and PEN (SBS) in one call, each with its source and date. Use it for multi-country reports; use the country tools for a single currency with more detail. Free d

  • br_indices

    Return Brazil's SELIC target rate, annualized CDI, latest monthly IPCA inflation and PTAX dollar from Banco Central do Brasil. Use it for Brazilian financial indicators; use ar_indices for Argentina. Free demo with a daily quota; production volume: GET /br/indices via x402.

  • br_cep

    Look up a Brazilian postal code (CEP) and return street, neighborhood, city, state and IBGE code. Use it to complete or check a Brazilian address. Free demo with a daily quota; production volume: GET /br/cep via x402.

  • ar_indices

    Return Argentina's latest monthly inflation, compounded year-over-year inflation and country risk (riesgo país) in basis points. Use it for Argentine price adjustments and reports; use latam_dolar_argentina for exchange rates. Free demo with a daily quota; production volume: GET

  • co_trm

    Return Colombia's TRM, the official COP/USD rate used for taxes and contracts, with its validity dates. Use it for Colombian invoices and declarations. Free demo with a daily quota; production volume: GET /co/trm via x402.

  • pe_tipo_cambio

    Return Peru's official SBS buy and sell exchange rate (PEN per USD) published by the central bank. Use it for Peruvian invoices and accounting. Free demo with a daily quota; production volume: GET /pe/tipo-cambio via x402.

  • mx_indicadores

    Return Mexico's official FIX dollar rate, used to settle dollar obligations, and the 28-day TIIE interest rate from Banxico. Use it for Mexican contracts and reports; use latam_indexacion for UDI. Free demo with a daily quota; production volume: GET /mx/indicadores via x402.

  • cl_reajuste

    Compound Chile's official monthly IPC between two months and optionally apply it to an amount. Use it to update rents, debts or alimony for inflation; use cl_uf when the contract is expressed in UF. Free demo with a daily quota; production volume: GET /cl/reajuste via x402.

  • cl_indicadores

    Return one Chilean economic indicator (UF, UTM, observed dollar, euro or IPC) for today or a past date, from official Central Bank data. Use cl_uf to convert amounts between UF and pesos. Free demo with a daily quota; production volume: GET /cl/indicadores via x402.

  • cl_uf

    Convert an amount from UF to Chilean pesos or back, using the UF value of a given date, and return the UF value, date and source. Use it for rents, insurance and contracts in UF; use latam_indexacion for UVA, UVR or UDI. Free demo with a daily quota; production volume: GET /cl/uf

  • cl_dias_habiles

    Return the date that falls N business days (días hábiles) after a start date in Chile, skipping weekends and national holidays, and list the holidays skipped. Use it for Chilean legal and administrative deadlines; use days_business_days for other countries. Free demo with a daily

  • cl_feriados

    List Chile's official national holidays for 2026 or 2027 from a curated statutory table, including moved holidays. Prefer it over days_holidays for Chile. Free demo with a daily quota; production volume: GET /cl/feriados via x402.

  • cl_rut

    Check a Chilean RUT's modulo 11 check digit and return it normalized (12.345.678-5). Use it to catch typos before saving a record. Does not confirm the person or company exists with the SII. Free demo with a daily quota; production volume: POST /cl/rut via x402.

  • cl_sueldo_liquido

    Estimate a Chilean employee's take-home pay from the monthly gross salary, deducting AFP pension, health (Fonasa or Isapre plan), unemployment insurance and impuesto único, with current UF and UTM values. An estimate, not a payroll settlement. Free demo with a daily quota; produc

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 10, 2026

  • ! Caution

    Maker matches the repo

    The registry lists no source repo, so we cannot match the publisher (toolrail.dev) to the code

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 196 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 28 tool descriptions and found no hidden instructions to the AI

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 3080 servers in this category
  • Published to the registry more recently than 86% of the other 3080 servers in this category
  • Basic checks equal to or better than 48% of the other 3080 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 Toolrail safe?

It passed 2 of 3 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

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 (1.1.0) reached the registry 3 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:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Finance Toolkit

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

by JerBoumaWidely used↓ 15.5K/wk★ 5.5KUpdated yesterday

Computer or cloud

SolidInvoice

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

by SolidInvoiceGrowing★ 981Updated yesterday

Runs in the cloud✓ solidinvoice.co

Korea Tax Calculator

Korean tax calculation and tax-audit judgment MCP: 98 tools with statutory citations.

by UpstageAIGrowing↓ 3.2K/wk★ 97Updated today

Runs on your computer

README from the maker

No README found in the repo

Ask PopNx