# calcu.mx Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## calcu.mx

Calculate Mexican payroll, taxes, inflation adjustments, IMSS pensions and severance

- Record: https://musedirectory.ai/connector/calcu-mx
- Category: Finance & Bills
- Developer: calcu.mx (https://calcu.mx/mcp)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 859ms, checked 2026-10-29T17:16:14Z
- Endpoint: https://calcu.mx/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T17:16:14Z)
- Source: Found in the official MCP Registry (mx.calcu/calculadoras) https://registry.modelcontextprotocol.io/v0/servers?search=mx.calcu%2Fcalculadoras

Calculates net salary with ISR and IMSS deductions, IVA tax, inflation adjustments using official INPC data, IMSS pensions under 1973 law, and employee severance payouts according to Mexican labor law.

Example request: "Calculate my net monthly salary after taxes and IMSS contributions for a job in Mexico City"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use calcu.mx to help me. It is a free service with an MCP server at https://calcu.mx/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- calcular_sueldo_neto: Calcula la nómina de un trabajador asalariado en México (ejercicio 2026) a partir de su sueldo bruto MENSUAL: ISR retenido con la tarifa oficial del Art. 96 LISR y el subsidio al empleo, cuotas del IMSS del trabajador por rama sobre el salario base de cotización, sueldo neto y co
- calcular_iva: Calcula el Impuesto al Valor Agregado (IVA) de México sobre un importe. «agregar» suma el IVA a un precio que no lo trae (precio × 1.16); «quitar» obtiene el importe sin IVA de un precio que ya lo incluye (precio ÷ 1.16); «desglosar» separa un total con IVA en base e IVA. Tasa ge
- actualizar_por_inflacion: Actualiza un importe en pesos mexicanos entre dos meses con el Índice Nacional de Precios al Consumidor (INPC) general del INEGI, serie mensual oficial desde enero de 1990 hasta el último mes publicado. Devuelve los dos valores del INPC usados, el factor (INPC final ÷ INPC inicia
- calcular_pension_ley73: Estima la pensión mensual de cesantía en edad avanzada (60–64 años) o vejez (65) del IMSS bajo la Ley del Seguro Social de 1973, para quien empezó a cotizar antes del 1 de julio de 1997. Aplica la tabla del Art. 167 (cuantía básica + incrementos por semanas arriba de 500), el fac
- calcular_liquidacion: Calcula lo que corresponde a un trabajador en México al terminar la relación laboral, según la Ley Federal del Trabajo. Desglosa: aguinaldo proporcional (15 días al año), vacaciones del periodo en curso más las pendientes, prima vacacional (25%), prima de antigüedad (12 días por 

Screening checks:
- MCP handshake: pass (Answered in 859ms)
- Domain against threat feeds (Cloudflare security DNS): pass (calcu.mx not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (5 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)