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MCP LatAm Business Suite

by José VelezGitHubWebsiteUpdated May 10, 2026

Latin American business compliance suite for AI agents — 28 tools covering tax ID validation (CPF, CNPJ, RFC, RUT, CUIT, CUIL, NIT, CC), banking validation (PIX, CLABE, CBU), VAT/IVA rules, e-invoicing requirements (NF-e, CFDI, DTE, Factura Electrónica), payment terms, public holidays, working day calculations, and invoice schema validation across Brazil, Mexico, Chile, Argentina, and Colombia.

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banking-validation
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How to pay

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Monthly billing

$19/month

Predictable monthly cost with included usage. Best for steady, high-volume traffic.

  • Unlimited tools within plan limits
  • One API key, billed once a month
  • Cancel any time

Overview

The mcp-latam-business MCP server delivers 28 tools for Latin American business data validation and compliance, with full coverage across Brazil, Mexico, Chile, Argentina, and Colombia. It enables programmatic checks for tax identifiers, banking details, VAT/IVA rates, e-invoicing obligations, public holidays, and labor calendars — all essential for financial and operational accuracy in LatAm markets.

Key Capabilities

Tax ID Validation (8 tools)

  • validate_cpf / validate_cnpj — Brazilian individual and company tax IDs (modulo-11 checksum)
  • validate_rfc_mx — Mexican RFC (individuals and companies)
  • validate_rut_cl — Chilean RUT with check digit K support
  • validate_cuit / validate_cuil — Argentine company and labor IDs (AFIP)
  • validate_nit_co / validate_cc_co — Colombian NIT and Cédula de Ciudadanía

Banking Validation (3 tools)

  • validate_pix_key — Brazilian PIX (CPF, CNPJ, email, phone, EVP)
  • validate_clabe_mx — Mexican 18-digit CLABE
  • validate_cbu_ar — Argentine 22-digit CBU

Holidays & Working Days (8 tools)

  • Per-country holiday calendars for BR, MX, CL, AR, CO with Easter-based moveable holidays
  • calculate_working_days_latam — working days between dates excluding weekends and holidays
  • get_next_payment_date_latam — next valid payment date (last/first/nth working day rules)
  • get_public_holidays_range_latam — holidays in a given date range

Business Rules (4 tools)

  • get_payment_terms_latam — B2B payment terms by country
  • get_invoice_requirements_latam — mandatory fields for NF-e, CFDI, DTE, Factura Electrónica
  • get_vat_rules_latam — standard rates, reduced rates, exemptions, withholding
  • get_einvoicing_rules_latam — B2B/B2G/B2C mandatory e-invoicing obligations

Invoice & VAT Calculations (4 tools)

  • validate_invoice_schema_latam — country-specific invoice field validation
  • calculate_vat_breakdown_latam — multi-rate IVA/ICMS breakdown
  • suggest_vat_treatment_latam — cross-border treatment (domestic, export, import, intra-LatAm)
  • calculate_vat_amount_latam — net/gross VAT splitting

Postal Codes

  • validate_postal_code_latam — CEP (BR), CP (MX), CL, AR (CPA), CO formats

Use Cases

  • Fintech onboarding — KYC and supplier validation across LatAm with verified tax IDs
  • E-commerce checkout — postal code validation, IVA calculation, invoice generation
  • B2B invoicing — schema validation for NF-e (Brazil), CFDI 4.0 (Mexico), DTE (Chile), Factura Electrónica (Argentina, Colombia)
  • Cross-border compliance — suggest correct VAT treatment for goods, services, and digital services between LatAm and rest of world
  • Payroll & HR — calculate working days, schedule salary payments avoiding national holidays
  • Accounts receivable automation — set payment due dates respecting per-country B2B norms

Who This Is For

Backend developers and AI agent builders integrating with Latin American markets — fintech (PIX, CLABE, CBU), e-commerce (tax ID, postal codes), accounting software (e-invoicing compliance), payroll systems (working days, holidays), and B2B SaaS expanding into LatAm.

Other servers in this suite

Notes on use

This server provides deterministic algorithmic validation (checksums, format checks, holiday calendars) and reference data (tax rates, banking validations, e-invoicing rules, payment terms) as a first-line compliance layer for AI agents and automated workflows operating in Latin American markets.

It is designed to catch errors before they reach production systems — invalid CPF/CNPJ/RFC/RUT/CUIT/NIT, malformed PIX/CLABE/CBU keys, missing CFDI/NF-e/DTE fields, scheduling on non-working days across BR/MX/CL/AR/CO.

The data is updated periodically and reflects published regulations at the time of release. For final NF-e/CFDI/DTE legal certification, complex tax situations (cross-border edge cases, ICMS/ISS sector-specific rules, recent regulatory changes), or audit-grade compliance, consult a tax professional or your local tax authority's official systems (Receita Federal, SAT, SII, AFIP, DIAN).

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