"Nx" matching MCP connectors:

Fiscal y nomina MX: recargos, ISR, CFDI, RESICO, calendario, IMSS, aguinaldo, finiquito.

Deterministic Mexican payroll & tax math: finiquito, ISR, aguinaldo, IMSS (2026 tables).

KoSIT-verified German e-invoices: generate & validate ZUGFeRD, Factur-X, XRechnung, EN 16931.

Practitioner-verified EU customs facts: classification, duty, origin, procedures. x402.

Form companies, manage bank accounts, cards, invoices and more — directly from your AI coding tools.