REST/JSON and SDKs Free sandbox CAE, QR and PDF WSFE, WSMTXCA and WSFEX

ARCA electronic invoicing API to issue vouchers from your system

Connect your ERP, SaaS, ecommerce or internal system to ARCA electronic invoicing without building SOAP, WSAA or PDFs from scratch. Afip SDK gives you an API to generate CAE, QR codes and delivery-ready vouchers.

Try the API for free Read the docs

100k+: downloads
2017: since
10+: languages
99.9%: uptime

Invoice B

0001-00004217

CAE authorized

Net $100.00

VAT 21% $21.00

Total $121.00

Sales point 0001

CAE 71390254782104

PDF ready to send

issue-invoice.js

import Afip from '@afipsdk/afip.js';

const afip = new Afip({
  access_token: 'YOUR_ACCESS_TOKEN',
  CUIT: 20409378472,
});

const invoice = await afip.ElectronicBilling.createVoucher({
  CantReg: 1,
  PtoVta: 1,
  CbteTipo: 6,
  Concepto: 1,
  DocTipo: 80,
  DocNro: 20111111112,
  ImpTotal: 121,
  ImpNeto: 100,
  ImpIVA: 21,
});

console.log(invoice.CAE, invoice.CAEFchVto);

Everything teams look for in an electronic invoicing API

The search intent is clear: issue valid vouchers in Argentina, test quickly, understand whether going straight to ARCA is worth it, and review technical examples before talking to sales.

ARCA-ready vouchers

Issue A, B, C, E, M and MiPyME invoices, credit notes and debit notes with CAE, expiration date and QR code.

One API for any stack

Integrate from Node.js, PHP, Python, Ruby, Java, .NET, Visual Fox Pro, n8n, Make or a direct REST API.

No certificate friction

Afip SDK handles authentication, WSAA, tokens, signatures, SOAP and XML so your system consumes a simple interface.

Invoice PDF included

Generate vouchers with PDF and tax data in the same flow, without building your own print engine.

Official ARCA

Official electronic invoices are issued through web services

ARCA publishes several SOAP web services for electronic invoicing. Afip SDK connects to those services and gives product and engineering teams an integration layer built for software.

View ARCA official docs

WSFEv1

A, B, C and M invoices without item-level detail.

WSMTXCA

Electronic invoicing with item-level detail.

WSFEXv1

Type E export invoices.

WSBFEv1

Electronic fiscal bonds and capital goods.

REST/JSON API vs connecting directly to ARCA

Connecting directly is possible. The difference is how much code, time and maintenance you want to own to issue an invoice.

Area

Direct ARCA

Afip SDK

Integration

Direct ARCA SOAP, XML, WSDLs, ARCA errors and X.509 certificates.

Afip SDK REST/JSON requests, SDKs and copy-ready examples.

Authentication

Direct ARCA You must sign WSAA tickets and renew token/sign every 12 hours.

Afip SDK Afip SDK manages authorization for you and exposes simple credentials.

Testing

Direct ARCA Manual staging setup before issuing vouchers.

Afip SDK Free sandbox to test the flow without generating valid fiscal vouchers.

Output

Direct ARCA ARCA returns CAE, but the PDF and presentation layer remain on your side.

Afip SDK CAE, QR and PDF in a flow ready to send or download.

How to integrate electronic invoicing into your software

The flow is designed so you can test in minutes and move to production when your tax ID and sales points are ready.

Test in sandbox

Create your account, use a development access token and validate the invoice JSON without impacting ARCA.

Integrate the issuing method

Send sales point, voucher type, amounts, recipient and taxes. Receive CAE, expiration date and observations.

Move to production

Link your tax ID, enable the corresponding web service and start issuing real fiscal vouchers.

Supported languages and integrations

Integrate the electronic invoicing API from your current stack without rewriting the management system your company or clients already use.

SDKs

Node.js
PHP
Python
Ruby
Java
.NET

Automation

n8n
Make
REST API

Legacy

Visual Fox Pro
VB6
Migrated SOAP

Frequently asked questions about the electronic invoicing API

What is an ARCA electronic invoicing API?

It is an interface that lets your system issue electronic vouchers valid before ARCA without manually using Comprobantes en Linea. Afip SDK simplifies the official web services with a REST layer, SDKs and examples.

Can I issue A, B, C, E, M and MiPyME invoices?

Yes. Afip SDK covers the usual electronic invoicing flows, credit notes, debit notes, export vouchers and MiPyME cases depending on the service enabled for the tax ID.

Does the API return CAE and QR?

Yes. The issuing response includes ARCA authorization data such as CAE and expiration date. You can also generate the PDF with the fiscal QR code for your customer.