LatAm Data MCP

An MCP server that gives agents reliable access to LatAm data that is otherwise scattered, undocumented, or Spanish-only: tax-ID validation for 12 countries, live economic indicators, exchange rates (including Argentina's blue rate and Colombia's legally binding TRM), Brazilian company lookups, holidays, and business-day math.

Tools (20)

Identity, banking & companies

Tool	What it does
validate_tax_id	Validates national tax IDs with real check-digit math for 15 countries: 🇨🇱 RUT, 🇦🇷 CUIT/CUIL, 🇲🇽 RFC, 🇧🇷 CPF/CNPJ (incl. 2026 alphanumeric CNPJs), 🇨🇴 NIT, 🇵🇪 RUC, 🇺🇾 RUT, 🇪🇨 cédula/RUC, 🇵🇾 RUC, 🇻🇪 RIF, 🇬🇹 NIT, 🇩🇴 RNC, 🇵🇦 RUC+DV, 🇨🇷 cédula, 🇧🇴 NIT. Returns canonical formatting and person/company/public-entity detection.
validate_bank_account	Validates interbank account codes with check-digit math: 🇲🇽 CLABE (18-digit), 🇦🇷 CBU/CVU (22-digit, incl. Mercado Pago virtual accounts). Decodes bank, branch and account — verify a payout destination before sending money.
validate_pix_key	Validates a 🇧🇷 PIX key (CPF, CNPJ, e-mail, +55 phone, or random UUID) and detects its type — CPF/CNPJ with full check-digit math.
validate_phone_number	Validates & normalizes phone numbers for 15 countries → E.164, national format, mobile/landline detection. Handles Brazil's 9th digit, Mexico's 10-digit, Argentina's 9/15, Chile's 9-prefix.
brazil_bank_lookup	Resolves a 🇧🇷 bank by COMPE code (name, ISPB).
brazil_company_lookup	Full federal-registry data for any Brazilian company by CNPJ: legal name, status, size, main activity, capital, address, partners.
costa_rica_company_lookup	🇨🇷 taxpayer by cédula: name, regime, activities, and compliance status (moroso/omiso) from Hacienda — for KYC/AML.

Money & markets

Tool	What it does
chile_indicators	UF, UTM, USD, EUR and more, in CLP.
argentina_exchange_rates	Official vs blue rate for USD/EUR.
brazil_market_rates	SELIC, CDI, IPCA.
colombia_official_trm	The legally binding USD/COP rate with validity dates.
brazil_historical_series	Historical SELIC/CDI/IPCA/USD over a date range, with min/max/avg/change — for trend analysis and backtesting.
colombia_trm_history	Historical USD/COP (TRM) over a date range.
costa_rica_exchange_rate	🇨🇷 official USD/EUR colón rate.
currency_convert	Convert any amount between two currencies at the live rate.
latam_exchange_rates	All 18 LatAm currencies vs USD in one call.

Time & calendars

Tool	What it does
public_holidays	Official holidays for 20 LatAm countries, any year.
next_holidays	Upcoming holidays from today.
long_weekends	Long weekends with bridge-day analysis.
business_days	Working-day count between dates, holiday-aware — for SLA, payroll, logistics, settlement math.

Install (free — runs on your machine)

No signup, no API keys. Two steps:

1. Install uv (the runner) if you don't already have it:

brew install uv                              # macOS
# or, any platform:
curl -LsSf https://astral.sh/uv/install.sh | sh

2. Add the server to your MCP client config (mcpServers block):

{
  "mcpServers": {
    "latam-data": {
      "command": "uvx",
      "args": ["latam-data-mcp"]
    }
  }
}

• Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) — then quit and reopen the app.
• Cursor / Claude Code / other clients: same mcpServers block, in their config.

Then just ask your agent "Is Chilean RUT 60.910.000-1 valid?" — done. Requires Python 3.10+ (uv handles it).

macOS gotcha: if the server doesn't show up, use the full path to uvx as the command (run which uvx → e.g. /opt/homebrew/bin/uvx). GUI apps don't always inherit your shell's PATH. First launch takes a few seconds while uv fetches the package; instant after that.

See it work

Once connected, just ask your agent in plain language:

"Is the Mexican CLABE 646180110400000007 valid, and which bank is it?" → ✅ valid · Banco STP · branch 180 · account …

"Validate Brazilian CNPJ 00.000.000/0001-91 and tell me who it is." → ✅ Banco do Brasil S.A. · active · Brasília-DF

"What's the UF and the dollar today in Chile? And convert 2,500,000 CLP to BRL."

"How many business days between 2026-09-01 and 2026-09-30 in Chile?" → holiday-aware working-day count (skips Fiestas Patrias)

No glue code — the agent picks the right tool and calls it.

Pro — the compliance & data tier

The tools above are free forever. Pro adds the compliance and data features teams actually pay for — the stuff you can't get from a free public API:

• 🛡️ OFAC sanctions / watchlist screening — fuzzy name matching (catches aliases, reordered names, accents) for KYC/AML onboarding
• 🏢 Company lookup by tax ID — 🇨🇱 Chile today; 🇦🇷 Argentina, 🇵🇪 Peru, 🇲🇽 Mexico coming — name, status, activities, compliance flags
• 📋 Bulk validation — validate up to 10,000 IDs in one call, for onboarding pipelines and CRM cleanups
• coming: PEP screening, change-monitoring webhooks, extended historical data

Delivered as a managed, always-on hosted endpoint (no self-hosting), with higher rate limits and priority support.

💳 $19.99/mo — → Subscribe to Pro

Building for a team, or need a specific country/data source first? Open an issue — tell me your use case and I'll get you early access.

Develop

python3.11 -m venv .venv
.venv/bin/pip install -e ".[dev]"
.venv/bin/python server.py     # stdio; set PORT=8000 for Streamable HTTP

Tests

.venv/bin/pytest              # offline suite: validators + MCP protocol layer
.venv/bin/pytest -m live      # integration tests against the real upstream APIs

Validators are verified against python-stdnum's reference algorithms and real IDs of public institutions (Banco do Brasil, SUNAT, DIAN, UTE, U. de Chile).

Data sources

All free public APIs, no keys: gael.cloud (Chile), Bluelytics (Argentina), BrasilAPI (Brazil), datos.gov.co (Colombia), open.er-api.com (regional FX), Nager.Date (holidays). Tax-ID validation is pure local math — zero dependencies, zero latency, nothing to break.

Roadmap

• Historical series (UF, USD, TRM)
• Deploy free tier + directory listings (Smithery, PulseMCP, mcp.so)
• Monetization via MCPize (85% rev share) once free tier has weekly active users
• Electronic invoicing requirements per country (static knowledge tool)