For teams billing in México

CFDI was going to eat your quarter.

SAT catalogs, CSD certificates, cadenas, sellos, a cancellation flow with a 72-hour clock. Get one byte wrong and the invoice bounces, the client waits, and someone is debugging “sello no corresponde” at 2 a.m. Or you send one JSON request and bill like it’s a solved problem. It is now.

Start stamping free Read the docs

None: CFDI plumbing you build — catalogs, sellos, PAC are ours
~5 min: Signup to your first real prueba stamp
XML + PDF: Every stamp: SAT QR, cadena, your brand — accountant-proof

Laguna de Bacalar, Quintana Roo

You’ve seen what raw CFDI XML looks like.

Nested namespaces, XSLT cadenas, base64 certificates, catalog codes that shift under you. Nobody should need a fiscal degree to bill a client. This is the entire request — and when something is off, the error names the fix in plain language, not a four-digit SAT code.

# stamp an invoice
POST https://api.newinvoice.dev/v1/invoices
{
  "fiscal_profile_id": "fp_3k9",
  "payment_form": "03",
  "payment_method": "PUE",
  "customer": {
    "rfc": "URE180429TM6",
    "name": "UNIVERSIDAD ROBOTICA ESPAÑOLA",
    "zip": "65000",
    "tax_regime": "601",
    "use": "G03"
  },
  "items": [{
    "product_key": "01010101",
    "unit_key": "H87",
    "quantity": 1,
    "unit_price": "1500.00",
    "description": "Consultoría"
  }]
}

{
  "status": "stamped",
  "uuid": "a7f0c1e2-4b83-4d1a-9e77-2c5f1b0d8e42",
  "xml_url": "…/v1/invoices/inv_3k9/xml",
  "pdf_url": "…/v1/invoices/inv_3k9/pdf"
}

The parts that were going to hurt. Handled.

Every CFDI integration dies in the same four places. We took them off your plate.

Zero: XML written by handNo namespaces, no cadenas, no XSLT. JSON in, stamped CFDI out.
Caught early: Rejected invoicesUso, régimen, and product keys are validated before the SAT ever sees them.
Translated: Cryptic SAT errorsEvery code maps to a fix in plain language. No more forum archaeology.
Tracked: Cancellation windows72-hour clocks, receptor acceptance, polling — we watch it, you get a webhook.

Everything the SAT needs. None of the ceremony.

One REST call

Send friendly JSON, get a SAT-stamped CFDI back. No namespaces, no cadenas, no XSLT.

Errors in plain language

Every SAT code maps to a fix you can read — no four-digit codes, no forum archaeology.

Cancellations, watched

72-hour clocks and receptor acceptance tracked for you. You get a webhook, not a cron job.

~5 min

Signup to your first real prueba stamp

XML + PDF

Every stamp: SAT QR, cadena, your brand

Zero

CFDI plumbing you build — catalogs, sellos, PAC are ours

Put CFDI on autopilot.

Free account, real prueba stamps — no CSD, no PAC contract, no sales call. Wire it in when you’re ready.

Start stamping free