Skip to content

Novus Conceptus · 5th certified e-invoicing provider in Greece

Certified e-invoicing provider API for Greece

Issue invoices and receipts from your app with a single call. You send the document as JSON; we transmit it to AADE myDATA, get the MARK, build the PDF with the QR code and email it to your customer.

Start here Your first document

AADE-certified provider · Code 005 myDATA 2.0.2 All in One POS under A.1158/2023 OpenAPI & Postman

What do you want to do?

  • Start from scratch

    How the provider works, a sandbox account and an API key.

    How it works

  • Issue my first receipt

    One ready-made JSON, one call, and you see the PDF.

    Your first document

  • Invoices, receipts, credit notes

    Which document type to choose and what to send in each case.

    Invoices & receipts

  • Card or IRIS payment

    Provider signature for the POS terminal and payment completion.

    Card / IRIS

  • Food service

    Order slips (8.6), cancellations and closing a table.

    Food service (8.6)

  • Goods movement

    Delivery notes, invoice-delivery notes, cancellation.

    Goods movement

  • Invoicing the public sector

    B2G e-invoice under EN 16931.

    Public sector (B2G)

  • Activate a new customer

    Request, contract, approval and Provider declaration, with no paperwork.

    Onboarding API

Looking for something specific? FAQ · AADE codes · Errors · All JSON fields · Postman & examples

From sandbox to production in 4 steps

  1. Sandbox account

    Sign up on the developer portal and get an API key for the sandbox.

    Account & API key

  2. Development

    Start with Postman and the ready-made JSON files, then connect your app.

    Postman & examples

  3. Certification

    Run the core scenarios from your app and submit the request online.

    Certification

  4. Production

    You get a production key, and your customers are activated through the Onboarding API.

    Onboarding API

The two APIs

Environments

Sandbox Production
Base URL https://provider-dev.timologisi.online https://provider.timologisi.online
Portal developer.portal.timologisi.online portal.timologisi.online
Authentication Header API-KEY Header API-KEY (a different key)
AADE myDATA 2.0.2 myDATA 2.0.2

About us

Novus Conceptus is the 5th e-invoicing provider licensed by AADE, the Greek tax authority. Businesses issue documents through our infrastructure directly, and also through the apps of the software houses we work with.

When you need help with a specific document, send us its invoiceUid or the request / response in question. What changed in each version: Changelog.
Company name NOVUS CONCEPTUS Ο.Ε.
Provider code 005
Suitability license (ΥΠΑΗΕΣ) 2020_11_105Novus Conceptus _001_ timologisi.online_V1_181120
Licensed 18 November 2020 · renewed 19 November 2025
All in one Cash Register / POS Novus All in One, licensed under A.1158/2023 (15 March 2024)