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Facturama API and MCP server

Facturama's API stamps CFDI invoices, but it takes the paid API module, prepaid API folios and code you write and host. Sign in to Facturama once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

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Not affiliated with Facturama.

Facturama has no API for this. So we run one for you.

Facturama's own API, a GitHub MCP server and Cotlet compared
What you need Facturama's APIGitHub MCP serverCotlet
Use without an API key or code No No Yes, 11 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when Facturama changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 14, 2026. Sources: Facturama: electronic invoicing API · Facturama: plans and prices · Facturama docs: first invoice and authentication · Facturama: credit note API

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to Facturama in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect Facturama to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 11 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. Facturama and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/facturama with its own method and path, such as POST /api/v1/facturama/clients/{client_id}/invoices, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the Facturama API and MCP server do?

11 tools on your own Facturama account. Agents call them as operations of the MCP tools facturama_read and facturama_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
Facturama tools in Cotlet's MCP server and REST API
Tool What it does Access
list_invoices Invoices and credit notes in the account with folio, client, total and status, newest first. read
get_invoice One invoice or credit note with its lines, taxes, totals, series, folio and UUID. read
list_clients Clients in your catalog with RFC, name, CFDI use, tax zip code and fiscal regime. read
get_client One client with all fiscal data and email addresses. read
list_products Products and services saved in your catalog with SAT product code, unit and price. read
download_invoice_file The XML or PDF of one invoice or credit note, as a file. read
create_client Add a client to the catalog with RFC, name, CFDI use, tax zip code and fiscal regime. write
create_invoice Issue and stamp a CFDI 4.0 invoice for a client with one or more lines. writeasks first
create_credit_note Issue and stamp a credit note (CFDI de egreso) against one invoice. writeasks first
email_invoice Send a stamped invoice or credit note to the client by email. writeasks first
cancel_invoice Cancel a stamped invoice or credit note with the SAT. writeasks first

Scroll the table for all 11 tools.

Ask in plain words. Your agent does the rest.

All Facturama use cases

Is it safe to connect Facturama?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the Facturama API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while Facturama is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does Facturama have an API?

Yes. Facturama has a REST API that stamps CFDI 4.0 invoices, but it is a paid add-on and it has no official MCP server (checked 14 Oct 2026). You buy the API module (MXN 1,650 a year) and separate prepaid API folios, which only work through the API.

How do I get access?

Sign up free, open Facturama under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 11 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to Facturama yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so Facturama sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: create_invoice, create_credit_note, email_invoice, cancel_invoice wait for your OK by default. You can switch that off per tool for scheduled runs.

Can the agent edit a stamped invoice?

No. Each CFDI is a legal tax act once stamped with the SAT. A wrong invoice is fixed by cancel_invoice or by create_credit_note, and every tool that stamps or cancels asks for your OK by default.

Should I use a Facturama MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when Facturama changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with Facturama?

No. Cotlet is independent and not affiliated with Facturama.

Give your agent access to Facturama.

Free 7-day trial with 2,000 credits, no card needed.

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