contix herramientas

Connect Remote server

claude mcp add --transport http herramientas https://api.contix.es/api/v1/mcp/herramientas

{
  "mcpServers": {
    "herramientas": {
      "url": "https://api.contix.es/api/v1/mcp/herramientas"
    }
  }
}

{
  "servers": {
    "herramientas": {
      "type": "http",
      "url": "https://api.contix.es/api/v1/mcp/herramientas"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://api.contix.es/api/v1/mcp/herramientas

Tools 6 found in our last check

• calculate_vat

  Compute the taxable base, VAT (IVA) amount, optional recargo de equivalencia and optional IRPF withholding from an amount. By default `importe` is the taxable base (sin IVA). With incluye_iva=true, `importe` is the TOTAL with VAT already included and the base is derived backward…

• validate_spanish_tax_id

  Two modes in one input. If `valor` is only 1-8 digits, computes the DNI check letter and returns the full 8-digit-plus-letter DNI (digits are left-padded with zeros). If `valor` is a full document, validates its check character: DNI (8 digits + letter), NIE (X/Y/Z + 7 digits + l…

• validate_iban

  Check whether an IBAN is well formed: country length (SWIFT IBAN registry) and ISO 13616 check digits. For Spanish IBANs also the two account check digits (DC) and the bank (entidad) with its BIC from the Banco de España registry. A 20-digit Spanish account number (CCC) is conve…

• check_vat_number

  Look up an EU VAT number in the European Commission's VIES registry. Returns what the registry says: whether the number exists and, where the member state publishes it, the name and address. It draws NO tax conclusion. VIES is often down; that is reported as disponible=false, wh…

• calculate_modelo_303

  Add up the boxes (casillas) of the Spanish quarterly VAT return Modelo 303 with the formulas printed on the official AEAT form: 27, 45, 46, 64, 66, 87, 69 and 71. Input are the tax amounts (cuotas) per box, e.g. {"09": 17430, "29": 9870}. It only sums what it is given: it does n…

• get_obligation_dates

  Deadlines from the published Spanish rules: Veri*factu (RD 1007/2023, dates of RD-ley 15/2025) and mandatory B2B e-invoicing (RD 238/2026, counted from the ministerial order, provisional while the order is a draft). Information about the rules, not advice. Returns a date (or nul…

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