contix herramientas
Free no-auth tools for Spain: validate IBAN, EU VAT check (VIES), Modelo 303 sums, Veri*factu dates.
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Calidad y seguridad
Basado en el análisis automatizado de las definiciones de herramientas y el cumplimiento del protocolo.
Costo de contexto
Este es el número aproximado de tokens que se consumen cada vez que las herramientas del servidor se cargan en el contexto de un modelo. Los recuentos más altos reducen la atención disponible para otras tareas.
Instalar
Instalación con un clic
Agrega esto a tu archivo `claude_desktop_config.json`:
{
"mcpServers": {
"herramientas": {
"url": "https://api.contix.es/api/v1/mcp/herramientas"
}
}
}Puntos de conexión remotos
https://api.contix.es/api/v1/mcp/herramientasstreamable-httpQué puede hacer
Inventario de herramientas
Herramientas (4)
🟢validate_iban(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 converted to its IBAN. Pure arithmetic: it does NOT confirm that the account exists or who owns it.
Esquema de entrada
{
"type": "object",
"properties": {
"iban": {
"type": "string",
"description": "IBAN or 20-digit Spanish account, spaces allowed"
}
},
"required": [
"iban"
]
}🟢check_vat_number(numero, pais)
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, which is NOT the same as an invalid number.
Esquema de entrada
{
"type": "object",
"properties": {
"numero": {
"type": "string",
"description": "VAT number, with or without country prefix"
},
"pais": {
"type": "string",
"description": "ISO country code (e.g. DE); omit when the number carries its prefix"
}
},
"required": [
"numero"
]
}🟢calculate_modelo_303(casillas)
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 not decide which rate or deduction applies and it is not a tax return.
Esquema de entrada
{
"type": "object",
"properties": {
"casillas": {
"type": "object",
"description": "Box number -> amount. Accepted: 152, 167, 03, 155, 06, 09, 11, 13, 15, 158, 170, 18, 21, 24, 26, 29, 31, 33, 35, 37, 39, 41, 42, 43, 44, 58, 76, 65, 77, 110, 78, 68, 108, 70, 109",
"additionalProperties": {
"type": [
"number",
"string"
]
}
}
},
"required": [
"casillas"
]
}🟢get_obligation_dates(forma, factura_a_empresas, mas_8_millones)
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.
Esquema de entrada
{
"type": "object",
"properties": {
"forma": {
"type": "string",
"enum": [
"sociedad",
"autonomo"
],
"description": "sociedad = company paying Impuesto sobre Sociedades; autonomo = self-employed"
},
"factura_a_empresas": {
"type": "boolean",
"description": "Invoices other businesses or professionals in Spain"
},
"mas_8_millones": {
"type": "boolean",
"description": "Turnover above 8 million EUR last year",
"default": false
}
},
"required": [
"forma",
"factura_a_empresas"
]
}Comunidad
Evidencia