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Web Service Revision: 2.0.0

Copyright © 2026 Openapi.com - All rights reserved - Edit cookie policy - Version 2.0.0 - System Status •

Flash news
New VIES Verification API: Check European VAT Numbers

The new VIES Verification API from Openapi is now live! Check in real time whether a European VAT number is valid for intra-EU transactions, directly within your software and business processes. A simple, automated check, entirely via API.

Flash news
New PEC Massiva Features

You can now group related messages into trackable conversations, monitor your daily usage, and find unread messages more easily.

News 2026-09-17

HTTP QUERY: the method that was missing between GET and POST

News 2026-09-16

New VIES Verification API: Check European VAT Numbers for Intra-EU Transactions

News 2026-09-16

New SMS Regulations in Spain: What Is the CNMC Alias Registry and What Changes

News 2026-09-16

Webinar API eSignature: Advanced Electronic Signature, how it works, live demo and Q&A