✦AvailableTax infrastructure for your software
Issue Brazilian NF-e and NFC-e invoices through a simple API. We handle the SEFAZ integration, digital certificates, technical notes and the tax reform: your system just sends the sale.
From API call to printed receipt
The API response already carries the QR code, and the DANFCE PDF is ready for an 80mm roll: just send it to the cashier printer. Authorized, with the SEFAZ protocol printed.
- →
GET /v1/documents/{id}/pdfreturns the receipt as PDF - →QR code in your state's SEFAZ standard
- →In contingency mode the receipt prints even with SEFAZ down
How it works
- 1
Register the company
Tax ID, A1 certificate and CSC, just once.
- 2
Call the API
One POST with the sale items. Taxes are calculated automatically.
- 3
Get the authorization
Access key, protocol, QR code and PDF in the response, and a webhook on every state change.
The tax work you will not have to do
Tax reform ready
NT 2025.002-RTC layout with IBS/CBS groups calculated and validated against SEFAZ.
Offline contingency
SEFAZ down? The receipt is issued in seconds and the invoice is transmitted later, automatically.
Signed webhooks
Every state change reaches your system with an HMAC signature, automatic retries and a delivery history.
Protected certificate
The A1 certificate lives in an isolated service with minimal permissions. The private key never passes through the API or appears in logs.
Full lifecycle
Cancellation, number voiding, returns and status lookup through the same API.
AI-classified NCM
Describe the product and get the tax code, with the official ruling that supports the answer.
A free sandbox forever: integrate and test against the real SEFAZ authorizer before deciding anything.
fiscal.tentonilabs.com.br