# Cumplida

> In-depth, continuous tax audit of the entire client portfolio, with the support for every difference and the defense of every case. For accounting and tax firms in Mexico; the accountant approves, and nothing is filed without that approval.

Español: https://cumplida.com/llms.txt · Full version (in Spanish): https://cumplida.com/llms-full.txt

## For agents (MCP, no account)

- Read-only MCP server, no account and no API key: https://mcp.cumplida.com/mcp (Streamable HTTP). Mexican tax law by version and date, and Mexican case law with its validity and whom it binds; it reads no firm's data. Send `Accept-Language: en` for the server's instructions, tool descriptions and errors in English; the legal content stays in Spanish.
- Tools: normativa_vigente, leer_disposicion, que_cambio_en_la_norma, buscar_jurisprudencia, leer_precedente, precedentes_de_un_articulo, vigencia_de_un_criterio, verificar_citas.
- Limits: 20 calls per minute and 400 per day per connection. Terms (in Spanish): https://cumplida.com/legal/biblioteca-abierta
- [For agents](https://cumplida.com/en/agents): the first requests with curl, when to use each tool, limits and how to cite. Markdown: https://cumplida.com/en/agents.md
- [Connect it in Claude](https://cumplida.com/en/claude#biblioteca-abierta) · API catalog (RFC 9727): https://cumplida.com/.well-known/api-catalog

First requests (each one works on its own; the result is on the `data:` line):

```sh
curl -sS https://mcp.cumplida.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H 'Accept-Language: en' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"su-agente","version":"1.0"}}}'

curl -sS https://mcp.cumplida.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H 'Accept-Language: en' \
  -d '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"leer_disposicion","arguments":{"referencia":"CFF 69-B"}}}'
```

## Who it is for

Partners of accounting firms and tax firms in Mexico that handle a portfolio of taxpayers with monthly obligations before the SAT.

## The six capabilities

- The entire portfolio, every period and every invoice: CFDI, returns, filing receipts and payments reconciled against what the SAT holds. Page (in Spanish): https://cumplida.com/para/auditoria-fiscal
- Every difference in its worksheet, with the invoice behind it and the applicable provision as in force on the date of the event. Page (in Spanish): https://cumplida.com/para/auditoria-fiscal
- The documentary chain of every transaction —contract, invoice, payment and evidence of performance— by counterparty, with every supplier checked against the article 69-B lists. Page (in Spanish): https://cumplida.com/para/materialidad
- Artemisa, an auditor in simulation, sets out the procedure the authority would use, the observable facts and the contingency of each taxpayer, and ranks the portfolio by the amount at stake. Page (in Spanish): https://cumplida.com/para/simulacro-de-fiscalizacion
- Carlos lays out the alternatives the law provides, with their legal basis, quantification and risk, and reviews the plan before it is signed. The strategy is the firm's. Page (in Spanish): https://cumplida.com/para/estrategia-fiscal
- From the authority's act to the remedy: deadline computation, review of legal grounds and reasoning, grievances with precedents in force and the draft brief, with every citation verified. Page (in Spanish): https://cumplida.com/para/defensa-fiscal

## What it does not do

- Sign on behalf of the firm or appear before the taxpayer.
- File a return without the accountant's approval.
- Replace the professional judgment of the accountant or the tax specialist.
- Keep the books, run payroll, issue invoices or stamp CFDI: it works alongside the firm's accounting system.

## Price

- Accounting: $1,900 a month for up to 50 active taxpayers; $3,200 a month for 51 to 150 active taxpayers; $4,800 a month for 151 to 400 active taxpayers.
- Defense: $1,200 a month for up to 50 active taxpayers; $1,900 a month for 51 to 150 active taxpayers; $2,800 a month for 151 to 400 active taxpayers.
- Complete: $2,800 a month for up to 50 active taxpayers; $4,800 a month for 51 to 150 active taxpayers; $7,200 a month for 151 to 400 active taxpayers.
- More than 400 active taxpayers: priced on request.
- Magda in the firm's Claude: $490 a month per connected person; the Complete plan includes 1.
- Prices in Mexican pesos, plus VAT, per firm, with unlimited users in the application.
- A trial of at least 30 days at no cost and without a card.

## How to cite

- Name and source: «Cumplida · cumplida.com», with the URL of the page the data comes from.

## Pages in English

- [Home](https://cumplida.com/en)
- [Contact](https://cumplida.com/en/contact)
- [About us](https://cumplida.com/en/about)
- [Security and custody of e.firmas](https://cumplida.com/en/security)
- [Magda, Cumplida's digital employee](https://cumplida.com/en/equipo/magda)
- [Artemisa, SAT auditor in simulation](https://cumplida.com/en/equipo/artemisa)
- [Carlos, tax strategist](https://cumplida.com/en/equipo/carlos)
- [Cumplida in your Claude](https://cumplida.com/en/claude)
- [For agents](https://cumplida.com/en/agents)

## In Spanish only

- [Answers](https://cumplida.com/respuestas) and [deadlines](https://cumplida.com/plazos): questions from the profession with the provision read in Cumplida's library and its validity; each page also in Markdown (same address with `.md`).
- [Pricing](https://cumplida.com/precios) · [Terms of Service](https://cumplida.com/legal/terms) · [Privacy notice](https://cumplida.com/legal/privacy-policy)

## Contact

- Sales and questions: hola@cumplida.com
- Support: soporte@cumplida.com