E-invoice API payload checker

Parse JSON payloads and check common invoice, party, line and total fields before sandbox submission.

PT EN

E-invoice API payload checker

Parse JSON payloads and check common invoice, party, line and total fields before sandbox submission.

Processed in your browserNo file storage

Select country

{
  "invoiceNumber": "INV-001",
  "issueDate": "2026-08-02",
  "currency": "MYR",
  "seller": {},
  "buyer": {},
  "lines": [],
  "totals": {}
}

Results

✓

JSON payload parsed

Valid JSON. 7/7 common invoice payload groups were detected for a CIUS-PT, SAF-T(PT), QR / ATCUD implementation preflight. This is not an authority-schema validation.

✓

Invoice number

Detected

✓

Issue date

Detected

✓

Currency

Detected

✓

Seller

Detected

✓

Buyer

Detected

✓

Lines

Detected

✓

Totals

Detected

Methodology

E-invoice API payload checker · Portugal

Parse an e-invoice JSON payload and locate common invoice, party, line and total groups across frequently used field aliases.

What the tool checks

Valid JSON syntax
Invoice number and date
Seller, buyer and line groups
Currency and total groups

What it cannot confirm

Technical check only

This is not an authority API schema validator
Authentication, signatures and endpoint-specific envelopes are not tested

Requirements Official sources