Terms of Use

Last updated: 13 November 2026

These terms govern your use of the InvoiceX10 sandbox: the InvoiceX10 API and the InvoiceX10 Panel at https://invoicex10.deeprunner.ai. By signing in to the Panel or calling the API with an InvoiceX10 key, you accept these terms on behalf of the business to which the key was issued (the "Customer"). If you do not accept them, do not use the service.

1. Who we are

InvoiceX10 is provided by DeepRunner AI Hellas Single Member S.A. ("DeepRunner", "we", "us"), registered at 44 Mitropoleos Street, Aigio, Achaia 25100, Greece, with a branch at Char. Trikoupi 62, Athens 14562, Greece. You can reach us at contact@deeprunner.ai.

2. What the service is

InvoiceX10 is an e-invoicing API. A business's software sends it an invoice or another document. InvoiceX10 checks the document, files it with myDATA, the electronic books platform of the Independent Authority for Public Revenue (AADE), and returns the MARK that AADE assigns, together with PDF and XML copies of the document.

The Panel is a web interface to the same API. A Customer signs in with its InvoiceX10 API key, sees the documents filed under its tenant, and composes and files new ones. The Panel has no user accounts, passwords or email sign-in: the API key is the only credential.

3. This is a sandbox, meant for testing

The service described in these terms is the InvoiceX10 sandbox at invoicex10.deeprunner.ai. It is meant for testing invoice flows. In particular:

• Documents filed with AADE test credentials go to AADE's myDATA test environment. If you use your AADE production credentials, the documents you file are real tax documents, with the same legal effect as any invoice you issue.
• Only InvoiceX10 sandbox keys (those starting with drk_test_) are accepted.
• You can delete your account from the sandbox by emailing contact@deeprunner.ai. Once it is deleted, we keep no information about it. Do not rely on the sandbox to keep any document, MARK, PDF or XML.
• AADE keeps its own copies of every document filed with it. Those copies are held by AADE and are outside our control; we cannot delete or change them.

4. Access and API keys

Access is by invitation only and is free of charge. It is non-exclusive and non-transferable, and we may withdraw it at any time, with or without reason.

Each key belongs to one tenant. Anyone who holds the key can see that tenant's documents and file new ones. The Customer must keep its key confidential, keep it out of logs, URLs, error reports and source control, and tell us at once at contact@deeprunner.ai if it believes the key has leaked. We can revoke a key immediately; the next request with it is refused. The Customer is responsible for all activity carried out with its key until it asks us to revoke it.

5. Customer content and responsibility

The Customer decides what it files through the service and is solely responsible for it, including the accuracy of every document and its compliance with applicable law. The Customer confirms it has the right to submit whatever it submits, including any personal data of its own customers or other counterparts that appears on a document.

Because this is a test service, the Customer should use test or fictitious data wherever it can, and must not submit special categories of personal data or any data it is not allowed to disclose. Remember that whatever is filed is also sent to AADE, where we cannot remove it.

The Customer remains responsible for its own records and its own copies of anything it wants to keep.

6. Acceptable use

You agree to use the service only for lawful testing of your own invoice flows. You must not, and must not help anyone else to:

• Break any applicable law or regulation, or infringe the rights of any third party.
• Present any document filed with test credentials as a real invoice or tax document, or use the service to mislead AADE, a counterpart or anyone else.
• File documents under a VAT number (AFM) that is not yours or that you are not authorised to use.
• Share, sell or publish your key, or use a key that was not issued to you.
• Access or attempt to access any tenant, data or system you are not authorised to access, or probe, scan or test the vulnerability of the service.
• Circumvent or attempt to circumvent rate limits, sign-in protections (including the Cloudflare Turnstile check), security measures or technical restrictions.
• Send automated traffic to the Panel, or load the API or AADE's test environment beyond what reasonable testing needs.
• Upload or transmit malicious code, or interfere with, disrupt or overload the service or the systems it depends on.
• Reverse engineer, decompile or otherwise attempt to derive the source code of the service, except where the law expressly allows it.
• Resell, sublicense or otherwise make the service available to third parties without our prior written permission.

If you break this section, we may suspend or end your access without prior notice where immediate action is needed. Use of the service is logged to protect its security and to check compliance with these terms.

7. No warranty

The sandbox is provided "as is" and "as available", without any warranty of any kind, express or implied, including any warranty of merchantability, fitness for a particular purpose, accuracy, availability or non-infringement. In particular:

• It may be unstable or incomplete, and it may change significantly or stop without notice.
• There is no service level agreement. Downtime, errors and outages are possible, including when AADE's test environment is unavailable.
• A check that passes in the sandbox does not guarantee that AADE's official environment will accept the same document.
• Data may be lost. When you delete your account, its data is deleted, as set out in section 3.

8. Limitation of liability

To the fullest extent permitted by law, DeepRunner has no liability to the Customer arising out of or in connection with the sandbox, including for lost profits, lost revenue, lost or corrupted data, deletion of data, tax or regulatory consequences of treating a sandbox document as real, business interruption, or any indirect or consequential loss, whether the claim is contractual, non-contractual or otherwise. We are not responsible for AADE's systems or for the copies AADE keeps. Nothing in these terms excludes or limits liability that cannot be excluded or limited by law, including liability for wilful misconduct or gross negligence.

9. Our intellectual property

The service, the Panel, their software and documentation, and the names DeepRunner and InvoiceX10 belong to DeepRunner or its licensors. These terms give you only the right to use the service as described here, for as long as your access lasts. Feedback you give us may be used freely by DeepRunner, without restriction, attribution or payment.

10. Personal data

How we handle personal data in the service is described in the InvoiceX10 Privacy Policy, which is published alongside these terms.

11. Suspension and termination

These terms apply from the moment you first use the service until your access ends. You may stop using the service at any time. We may suspend or end your access, revoke your key, or close the sandbox at any time. When access ends, sections 5, 7, 8, 12 and 13 continue to apply.

12. Changes to these terms

We may change these terms from time to time. When we do, we will update the date at the top of this page. If a change is material, we will tell Customers before it takes effect. If you keep using the service after a change takes effect, you accept the changed terms.

13. Governing law and courts

These terms are governed by the laws of Greece. The courts of Athens have exclusive jurisdiction over any dispute arising out of or in connection with them, without prejudice to any mandatory rights you have under the law.

14. Contact

Questions about these terms: contact@deeprunner.ai, or by post to DeepRunner AI Hellas Single Member S.A., 44 Mitropoleos Street, Aigio, Achaia 25100, Greece.