Hacé Cuentas — Free Calculators

Free calculators as MCP tools: finance, taxes, health, units, dates. Search, fetch & compute.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
100%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~412Tokens (tool definitions)
~821 BTypical response size
Minimal attention impact (0.32% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "hacecuentas": {
      "url": "https://hacecuentas.com/mcp"
    }
  }
}

Remote endpoints

https://hacecuentas.com/mcpstreamable-http

What it can do

Tool inventory

Tools (3)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢search_calculators(query, category, limit)

Busca calculadoras de Hacé Cuentas por palabra clave (ej. "imc", "préstamo", "aguinaldo"). Devolvé el slug para usar luego con get_calculator o compute. Opcional: filtrar por category y limitar resultados.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "palabras clave a buscar"
    },
    "category": {
      "type": "string",
      "description": "filtro opcional de categoría (finanzas, salud, deportes, impuestos, etc.)"
    },
    "limit": {
      "type": "integer",
      "description": "máximo de resultados (default 10)",
      "default": 10
    }
  },
  "required": [
    "query"
  ]
}
🟢get_calculator(slug)

Devuelve la ficha de una calculadora por slug: qué inputs toma (id, tipo, requerido, valores válidos) y una URL de ejemplo. Usalo antes de compute para saber qué parámetros pasar.

Input Schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "slug de la calc (ej. calculadora-imc)"
    }
  },
  "required": [
    "slug"
  ]
}
🟢compute(slug, inputs, lang)

Calcula el resultado de una calculadora en vivo. Pasá el slug y un objeto inputs con los campos (ver get_calculator). Opcional lang (es|en|pt). Devuelve el resultado calculado en JSON.

Input Schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "slug de la calc (ej. calculadora-imc)"
    },
    "inputs": {
      "type": "object",
      "additionalProperties": true,
      "description": "pares campo→valor, ej. {\"peso\":80,\"altura\":180}"
    },
    "lang": {
      "type": "string",
      "enum": [
        "es",
        "en",
        "pt"
      ],
      "description": "idioma del resultado (default es)"
    }
  },
  "required": [
    "slug",
    "inputs"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded3 tools
verifiedversion not recorded3 tools
verifiedversion not recorded3 tools